GRB 090313: X-shooter's first shot at a GRB (2009)
Postigo, A. De Ugarte, D'Elia, V., Goldoni, P., Thöne, C. C., Piranomonte, S., Vergani, S. D., ...
Context. X-shooter is the first second-generation instrument of ESO's Very Large Telescope (VLT), a spectrograph designed with gamma-ray burst (GRB) afterglow spectroscopy as one of its main...
Fynbo, J. P. U., Jakobsson, P., Prochaska, J. X., Malesani, D., Ledoux, C., Postigo, A. De Ugarte, ...
(Abridged). We present a sample of 77 optical afterglows (OAs) of Swift detected GRBs for which spectroscopic follow-up observations have been secured. We provide linelists and equivalent widths for...
Ledoux, C., Vreeswijk, P. M., Smette, A., Fox, A. J., Petitjean, P., Ellison, S. L., ...
We aim to understand the nature of the absorbing neutral gas in the galaxies hosting high-redshift long-duration GRBs and to determine their physical conditions. We report the detection of a...
Early spectroscopic identification of SN 2008D. (2009)
Malesani, D., Fynbo, J.P.U., Hjorth, J., Leloudas, G., Sollerman, J., Stritzinger, M., ...
Original article can be found at: http://www.iop.org/EJ/journal/apjl Copyright American Astronomical Society DOI: 10.1088/0004-637X/692/2/L84 [Full text of this article is not available in the UHRA]
GRB 080913 at redshift 6.7 (2009)
Greiner, J., Krühler, T., Fynbo, J. P. U., Rossi, A., Schwarz, R., Klose, S., ...
Elíasdóttir, Á., Fynbo, J. P. U., Hjorth, J., Ledoux, C., Watson, D., Andersen, A. C., ...
We report the clear detection of the 2175A dust absorption feature in the optical afterglow spectrum of the gamma-ray burst (GRB) GRB070802 at a redshift of z=2.45. This is the highest redshift for a...
GRB 080913 at redshift 6.7 (2008)
Greiner, J., Kruehler, T., Fynbo, J. P. U., Rossi, A., Schwarz, R., Klose, S., ...
We report on the detection by Swift of GRB 080913, and subsequent optical/near-infrared follow-up observations by GROND which led to the discovery of its optical/NIR afterglow and the recognition of...
IFU observations of the GRB 980425/SN 1998bw host galaxy: emission line ratios in GRB regions (2008)
Christensen, L., Vreeswijk, P. M., Sollerman, J., Thoene, C. C., Floc'h, E. Le, Wiersema, K.
The collapsar model predicts that the progenitors of Gamma-ray Bursts (GRBs) are metal poor in Fe group elements. The existence of low metallicity stellar populations could manifest itself through...
Thoene, C. C., Kann, D. A., Johannesson, G., Selj, J. H., Jaunsen, A., Fynbo, J. P. U., ...
With this paper we want to investigate the highly variable afterglow light curve and environment of Gamma-Ray Burst (GRB) 060526 at z=3.221. We present one of the largest photometric datasets ever...
Early spectroscopic identification of SN 2008D (2008)
Malesani, D., Fynbo, J. P. U., Hjorth, J., Leloudas, G., Sollerman, J., Stritzinger, M. D., ...
SN 2008D was discovered while following up an unusually bright X-ray transient in the nearby spiral galaxy NGC 2770. We present early optical spectra (obtained 1.75 days after the X-ray transient)...
GRB 070306: A Highly Extinguished Afterglow (2008)
Jaunsen, A. O., Rol, E., Watson, D. J., Malesani, D., Fynbo, J. P. U., Milvang-Jensen, B., ...
We report on the highly extinguished afterglow of GRB 070306 and the properties of the host galaxy. An optical afterglow was not detected at the location of the burst, but in near-infrared a doubling...
The host of GRB 060206: Kinematics of a distant galaxy (2008)
Thöne, C.C., Wiersema, K., Ledoux, C., Starling, R.L.C., Ugarte Postigo, A. De, Levan, A.J., ...
Context. GRB afterglow spectra are sensitive probes of interstellar matter along the line-of-sight in their host galaxies, as well as in intervening galaxies. The rapid fading of GRBs makes it very...
Wiersema, K., Kann, D.A., Rol, E., Starling, R.L.C., Curran, P.A., ...
Aims. We present optical photometry and spectroscopy of the afterglow and host galaxy of gamma-ray burst GRB040924. This GRB had a rather short duration of T-90 similar to 2.4 s, and a well sampled...
Ruiz-Velasco, A. E., Swan, H., Troja, E., Malesani, D., Fynbo, J. P. U., Starling, R. L. C., ...
We report on follow-up observations of the GRB 060927 using the ROTSE-IIIa telescope and a suite of larger aperture ground-based telescopes. An optical afterglow was detected 20 s after the burst,...
Wiersema, K., Van Der Horst, A. J., Kann, D. A., Rol, E., Starling, R. L. C., Curran, P. A., ...
We present optical photometry and spectroscopy of the afterglow and host galaxy of gamma-ray burst 040924. This GRB had a rather short duration of T90 ~2.4s, and a well sampled optical afterglow...
The nature of the dwarf starforming galaxy associated with GRB 060218 / SN2006aj (2007)
Wiersema, K., Savaglio, S., Vreeswijk, P. M., Ellison, S. L., Ledoux, C., ...
We present high resolution VLT UVES and low resolution FORS optical spectroscopy of supernova 2006aj and its host galaxy, associated with the nearby (z = 0.03342) gamma-ray burst GRB 060218. This...
A case of mistaken identity GRB 060912A and the nature of the long-short GRB divide. (2007)
Levan, A., Jakobsson, P., Hurkett, C., Tanvir, N., Gorosabel, J., Vreeswijk, P.M., ...
Vreeswijk, P. M., Ledoux, C., Smette, A., Ellison, S. L., Jaunsen, A. O., Andersen, M. I., ...
Publicación ISI
Vreeswijk, P. M., Ledoux, C., Smette, A., Ellison, S. L., Jaunsen, A. O., Andersen, M. I., ...
Publicación ISI
Vreeswijk, P. M., Ledoux, C., Smette, A., Ellison, S. L., Jaunsen, A., Andersen, M. I., ...
We present high-resolution spectroscopic observations of GRB060418, obtained with VLT/UVES. These observations were triggered using the VLT Rapid-Response Mode (RRM), which allows for automated...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P. A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae(1) that are more luminous than average(2-5) and that eject material at very high velocities. Less-luminous supernovae were...
Short timescale variability in the Faint Sky Variability Survey (2006)
Morales-Rueda, L., Groot, P. J., Augusteijn, T., Nelemans, G., Vreeswijk, P. M.
We present the V band variability analysis of the point sources in the Faint Sky Variability Survey on time scales from 24 minutes to tens of days. We find that about one percent of the point sources...
Probing cosmic chemical evolution with gamma-ray bursts: GRB 060206 at z=4.048 (2006)
Fynbo, J. P. U., Starling, R. L. C., Ledoux, C., Wiersema, K., Thöne, C. C., Sollerman, J., ...
Aims. We present early optical spectroscopy of the afterglow of the gamma-ray burst GRB060206 with the aim of determining the metallicity of the GRB absorber and the physical conditions in the...
Long gamma-ray bursts and core-collapse supernovae have different environments (2006)
Fruchter, A.S., Levan, A.J., Strolger, L., Vreeswijk, P.M., Thorsett, S.E., Bersier, D., ...
When massive stars exhaust their fuel they collapse and often produce the extraordinarily bright explosions known as core-collapse supernovae. On occasion, this stellar collapse also powers an even...
Physics of the GRB 030328 afterglow and its environment (2006)
Maiorano, E., Masetti, N., Palazzi, E., Savaglio, S., Rol, E., Vreeswijk, P. M., ...
We report on the photometric, spectroscopic and polarimetric, monitoring of the optical afterglow of Gamma-Ray Burst (GRB) 030328 detected by HETE-2. Photometry, collected at 7 different telescopes,...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P. A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not...
Long gamma-ray bursts and core-collapse supernovae have different environments (2006)
Fruchter, A. S., Levan, A. J., Strolger, L., Vreeswijk, P. M., Thorsett, S. E., Bersier, D., ...
When massive stars exhaust their fuel they collapse and often produce the extraordinarily bright explosions known as core-collapse supernovae. On occasion, this stellar collapse also powers an even...
Probing Cosmic Chemical Evolution with Gamma-Ray Bursts: GRB060206 at z=4.048 (2006)
Fynbo, J. P. U., Starling, R. L. C., Ledoux, C., Wiersema, K., Thöne, C. C., Sollerman, J., ...
Aim: We present early optical spectroscopy of the afterglow of the gamma-ray burst GRB 060206 with the aim of determining the metallicity of the GRB absorber and the physical conditions in the...
The broadband afterglow of GRB 030328 (2006)
Maiorano, E., Masetti, N., Palazzi, E., Savaglio, S., Rol, E., Pian, E., ...
We here report on the photometric, spectroscopic and polarimetric monitoring of the optical afterglow of the Gamma-Ray Burst (GRB) 030328 detected by HETE-2. We found that a smoothly broken power-law...
Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211 (2006)
Vreeswijk, P.M., Smette, A., Fruchter, A.S., Palazzi, E., Rol, E., ...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P. A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
HI column densities of z>2 Swift gamma-ray bursts. (2006)
Jakobsson, P., Fynbo, J., Ledoux, C., Vreeswijk, P.M., Kann, D.A., Hjorth, J., ...
Probing cosmic chemical evolution with gamma-ray bursts: GRB 060206 at z = 4.048. (2006)
Fynbo, J., Starling, R.L., Ledoux, C., Wiersema, K., Thoene, C.C., Sollerman, J., ...
Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211. (2006)
Vreeswijk, P.M., Smette, A., Fruchter, S., Palazzi, E., Rol, E., ...
An optical supernova associated with the X-ray flash XRF 060218 (2006)
Pian, E., Mazzali, P.A., Masetti, N., Ferrero, P., Klose, S., Palazzi, E., ...
Long-duration gamma-ray bursts (GRBs) are associated with type Ic supernovae that are more luminous than average and that eject material at very high velocities. Less-luminous supernovae were not...
Levan, A., Fruchter, A., Rhoads, J., Mobasher, B., Tanvir, N., Gorosabel, J., ...
We present near-infrared (NIR) and optical observations of the afterglow of GRB 030115. Discovered in an infrared search at Kitt Peak 5 hr after the burst trigger, this afterglow is the faintest ever...
Short time-scale variability in the Faint Sky Variability Survey (2006)
Morales Rueda, L., Groot, P. J., Augusteijn, T., Nelemans, G., Vreeswijk, P. M.
We present the V-band variability analysis of the point sources in the Faint Sky Variability Survey on time-scales from 24 min to tens of days. We find that about one per cent of the point sources...
Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211 (2005)
Vreeswijk, P. M., Smette, A., Fruchter, A. S., Palazzi, E., Rol, E., ...
We present low-resolution VLT spectroscopy of the afterglow of the gamma-ray bursts (GRBs) 991216, 011211 and 021211. Our spectrum of GRB991216 is the only optical spectrum for this afterglow. It...
GRB 050509B: Constraints on Short Gamma Ray Burst Models (2005)
Hjorth, J., Sollerman, J., Gorosabel, J., Granot, J., Klose, S., Kouveliotou, C., ...
Gas and dust properties in the afterglow spectra of GRB 050730 (2005)
Starling, R. L. C., Vreeswijk, P. M., Ellison, S. L., Rol, E., Wiersema, K., Levan, A. J., ...
We present early WHT ISIS optical spectroscopy of the afterglow of gamma-ray burst GRB 050730. The spectrum shows a DLA system with the highest measured hydrogen column to date: N(HI) = 22.1 +/- 0.1...
Conselice, C. J., Vreeswijk, P. M., Fruchter, A. S., Levan, A., Kouveliotou, C., Fynbo, J. P. U., ...
We study the internal structural properties of 37 long duration gamma-ray burst (GRB) host galaxies imaged with the Hubble Space Telescope. Fitting exponential disk and r^1/4 models to the surface...
GRB 050509B: Constraints on short gamma-ray burst models (2005)
Hjorth, J., Sollerman, J., Gorosabel, J., Granot, J., Klose, S., Kouveliotou, C., ...
We have obtained deep optical images with the Very Large Telescope at ESO of the first well-localized short-duration gamma-ray burst, GRB 050509B. From V and R imaging, initiated ~2 days after the...
Fynbo, J. P. U., Gorosabel, J., Smette, A., Fruchter, A., Hjorth, J., Pedersen, K., ...
(Abridged) We report on HST observations of the late-time afterglow and host galaxy of GRB021004 (z=2.33). Although this GRB is one of the best observed so far, there is substantial disagreement...
Masetti, N., Palazzi, E., Pian, E., Hunt, L., Fynbo, J. P. U., Gorosabel, J., ...
We present the results of an optical and near-infrared (NIR) monitoring campaign of the counterpart of Gamma-Ray Burst (GRB) 000911, located at redshift z=1.06, from 5 days to more than 13 months...
Spectroscopy of GRB 021004: a structured jet ploughing through a massive stellar wind (2005)
Starling, R. L. C., Hughes, M. A., Tanvir, N. R., Vreeswijk, P. M., Rol, E., ...
We present spectra of the afterglow of GRB 021004 taken with WHT ISIS and VLT FORS1 at three epochs spanning 0.49--6.62 days after the burst. We observe strong absorption likely coming from the host...
Gas and dust properties in the afterglow spectra of GRB 050730 (2005)
Starling, R.L.C., Vreeswijk, P.M., Ellison, S.L., Rol, E., Wiersema, K., Levan, A.J., ...
GRB 050509B: Constraints on Short Gamma-Ray Burst Models (2005)
Hjort, J., Sollerman, J., Gorosabel, J., Granot, J., Klose, S., Kouveliotou, C., ...
DLA systems in GRB afterglows (2005)
Vreeswijk, P.M., Ellison, S.L., Ledoux, C., Fynbo, J.P.U., Møller, P., ...
To date, half a dozen DLAs have been detected in grb afterglows, but most have modest signal-to-noise ratios. Our detection of a DLA in the afterglow of grb 030323 is unambiguous: its neutral...
Fynbo, J.P.U., Gorosabel, J., Smette, A., Fruchter, A., Hjorth, J., Pedersen, K., ...
We report on Hubble Space Telescope (HST) observations of the late-time afterglow and host galaxy of GRB 021004 (z=2.33). Although this gamma-ray burst (GRB) is one of the best observed so far in...
Starling, R.L.C., Hughes, M.A., Tanvir, N.R., Vreeswijk, P.M., Rol, E., ...
We present spectra of the afterglow of the gamma-ray burst GRB 021004 taken with the ISIS spectrograph on the William Herschel Telescope (WHT) and with the Focal Reducer/Low Dispersion Spectrograph 1...
Fynbo, J., Gorosabel, J., Smette, A., Fruchter, A.S., Hjorth, J., Pedersen, K., ...
Original article can be found at : http://www.iop.org/EJ/journal/apj Copyright The American Astronomical Society [Full text of this article is not available in the UHRA]
Fynbo, J.P.U., Gorosabel, J., Smette, A., Fruchter, A., Hjorth, J., Pedersen, K., ...
We report on Hubble Space Telescope (HST) observations of the late-time afterglow and host galaxy of GRB 021004 (z = 2.33). Although this gamma-rayburst (GRB) is one of the best observed so far in...
Photometric Variability in the Faint Sky Variability Survey (2004)
Morales-Rueda, L., Groot, P. J., Augusteijn, T., Nelemans, G., Vreeswijk, P. M.
The Faint Sky Variability Survey (FSVS) is aimed at finding photometric and/or astrometric variable objects between 16th and 24th mag on time-scales between tens of minutes and years with photometric...
Klose, S., Greiner, J., Rau, A., Henden, A. A., Hartmann, D. H., Zeh, A., ...
We report results from a comprehensive follow-up observing campaign of the afterglow of GRB 030226, including VLT spectroscopy, VLT polarimetry, and Chandra X-ray observations. In addition, we...
Vreeswijk, P. M., Ellison, S. L., Ledoux, C., Fynbo, J. P. U., Møller, P., ...
We present photometry and spectroscopy of the afterglow of GRB 030323. VLT spectra of the afterglow show damped Lya (DLA) absorption and low- and high-ionization lines at a redshift z=3.3718+-0.0005....
Fynbo, J. P. U., Sollerman, J., Hjorth, J., Grundahl, F., Gorosabel, J., Weidinger, M., ...
We present optical and near-infrared follow-up observations of the X-Ray Flash (XRF) of July 23 2003. Our observations in the R-band cover the temporal range from 4.2 h to 64 days after the high...
Klose, S., Greiner, J., Rau, A., Henden, A.A., Hartmann, D.H., Zeh, A., ...
Vreeswijk, P.M., Ellison, S.L., Ledoux, C., Fynbo, J.P.U., Møller, P., ...
We present photometry and spectroscopy of the afterglow of GRB 030323. VLT spectra of the afterglow show damped Lyalpha (DLA) absorption and low- and high-ionization lines at a redshift...
GRB 020813: Polarization in the case of a smooth optical decay (2004)
Gorosabel, J., Rol, E., Covino, S., Castro-Tirado, A. J., Castro Cerón, J. M., Lazzati, D., ...
GRB 011121: Jet, wind and supernova – all in one (2004)
Greiner, J., Klose, S., Salvato, M., Zeh, A., Schwarz, R., Hartmann, D. H., ...
The optical/near-IR spectral energy distribution of the GRB 000210 host galaxy (2004)
Gorosabel, J., Christensen, L., Hjorth, J., Fynbo, J. U., Pedersen, H., Jensen, B. L., ...
GRB afterglows: illuminating the star-forming universe. (2004)
Vreeswijk, P.M., Moller, P., Ledoux, C., Ellison, C., Masetti, N., Fynbo, J., ...
GRB 020813: Polarization in the case of a smooth optical decay (2004)
Gorosabel, J., Rol, E., Covino, S., Castro-Tirado, A.J., Castro Ceron, J.M., Lazzati, D., ...
GRB 030227: the first multiwavelength afterglow of an INTEGRAL GRB (2003)
Castro-Tirado, A. J., Gorosabel, J., Guziy, S., Reverte, D., Cerón, J. M. Castro, Postigo, A. De Ugarte, ...
We present multiwavelength observations of a gamma-ray burst detected by INTEGRAL (GRB 030227) between 5.3 hours and ~1.7 days after the event. Here we report the discovery of a dim optical afterglow...
GRB 020813: polarization in the case of a smooth optical decay (2003)
Gorosabel, J., Rol, E., Covino, S., Castro-Tirado, A. J., Cerón, J. M. Castro, Lazzati, D., ...
We present the results of a VLT polarimetric monitoring campaign of the GRB 020813 optical afterglow carried out in three nights, from 0.88 to 4.20 days after the gamma-ray event. The mean values of...
GRB 011121: A collimated outflow into wind-blown surroundings (2003)
Greiner, J., Klose, S., Salvato, M., Zeh, A., Schwarz, R., Hartmann, D. H., ...
We discover a break in the GRB 011121 afterglow light curve after 1.3 days, which implies an initial jet opening angle of about 9 deg. The SED during the first four days is achromatic, and supports...
New search strategy for high z intervening absorbers: GRB021004, a pilot study (2003)
Vreeswijk, P. M., Moller, P., Fynbo, J. P. U.
We present near-infrared narrow- and broad-band imaging of the field of GRB021004, performed with ISAAC on the UT1 of the ESO Very Large Telescope. The narrow-band filters were chosen to match...
Very high column density and small reddening towards GRB 020124 at z = 3.20 (2003)
Hjorth, J., Møller, P., Gorosabel, J., Fynbo, J. P. U., Toft, S., Jaunsen, A. O., ...
We present optical and near-infrared observations of the dim afterglow of GRB 020124, obtained between 2 and 68 hours after the gamma-ray burst. The burst occurred in a very faint (R > 29.5) Damped...
The blue host galaxy of the red GRB 000418 (2003)
Gorosabel, J., Klose, S., Christensen, L., Fynbo, J. P. U., Hjorth, J., Greiner, J., ...
We report on multi-band (UBVRIZJsKs) observations of the host galaxy of the April 18, 2000 gamma-ray burst. The Spectral Energy Distribution (SED) is analysed by fitting empirical and synthetic...
Optical and near-infrared observations of the GRB020405 afterglow (2003)
Masetti, N., Palazzi, E., Pian, E., Simoncelli, A., Hunt, L. K., Maiorano, E., ...
(Abridged) We report on observations of the optical and NIR afterglow of GRB020405. Ground-based optical observations started about 1 day after the GRB and spanned a period of ~10 days; archival HST...
The optical/near-IR spectral energy distribution of the GRB 000210 host galaxy (2003)
Gorosabel, J., Christensen, L., Hjorth, J., Fynbo, J. U., Pedersen, H., Jensen, B. L., ...
We report on UBVRIZJsHKs-band photometry of the dark GRB 000210 host galaxy. Fitting a grid of spectral templates to its Spectral Energy Distribution (SED), we derived a photometric redshift...
GRB 030227 : The first multiwavelength afterglow of an INTEGRAL GRB (2003)
Castro-Tirado, A. J., Gorosabel, J., Guziy, S., Reverte, D., Castro Cerón, J. M., ...
We present multiwavelength observations of a gamma-ray burst detected byINTEGRAL (GRB 030227) between 5.3 hours and ~ 1.7days after the event. Here we report the discovery of a dim opticalafterglow...
GRB 011121: A Collimated Outflow into Wind-blown Surroundings (2003)
Greiner, J., Klose, S., Salvato, M., Zeh, A., Schwarz, R., Hartmann, D.H., ...
SCUBA observations of the host galaxies of four dark gamma-ray bursts (2003)
Barnard, V.E., Blain, A., Tanvir, N.R., Natarajan, P., Smith, I.A., ...
We present the results of a search for submillimetre-luminous host galaxies of optically dark gamma-ray bursts (GRBs) using the Submillimetre Common-User Bolometer Array (SCUBA) on the James Clerk...
SCUBA Sub-Millimeter Observations of Gamma-Ray Bursters (2003)
Smith, I.A., Tilanus, R.P.J., Tanvir, N., Vreeswijk, P.M., Rol, E., ...
We summarize our ongoing program of sub-millimeter observations of gamma-ray bursts (GRBs) using the Sub-millimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell Telescope (JCMT)....
The Faint Sky Variability Survey - I. Goals and data reduction process (2003)
Groot, P.J., Vreeswijk, P.M., Huber, M.E., Everett, M., Howell, S.B., Nelemans, G.A., ...
A multi-colour study of the dark GRB 000210 host galaxy and its environment (2003)
Gorosabel, J., Christensen, L., Hjorth, J., Fynbo, J.U., Pedersen, H., Jensen, B.L., ...
We present UBVRIZJsHKs broad band photometry of the host galaxy of the dark gamma-ray burst (GRB) of February 10, 2000. These observations represent the most exhaustive photometry given to date of...
Gorosabel, J., Fynbo, J.U., Moller, P., Hjorth, J., Pedersen, H., Christensen, L., ...
We present the results provided by an automatic colour-colour discrimination pipe-line developed to discern the different populations of objects present in GRB error boxes. We illustrate the...
Optical and near-infrared observations of the GRB020405 afterglow (2003)
Masetti, N., Palazzi, E., Pian, E., Simoncelli, A., Hunt, L.K., Maiorano, E., ...
We report on photometric, spectroscopic and polarimetric monitoring of the optical and near-infrared (NIR) afterglow of GRB020405. Ground-based optical observations, performed with 8 different...
A very energetic supernova associated with the gamma-ray burst of 29 March 2003 (2003)
Hjorth, J., Sollerman, J., Moller, P., Fynbo, J.U., Woosley, S., Kouveliotou, C., ...
Over the past five years evidence has mounted that long-duration (>2s) gamma-ray bursts (GRBs)-the most luminous of all astronomical explosions-signal the collapse of massive stars in our Universe....
Variable polarization in the optical afterglow of GRB 021004 (2003)
Rol, E., Fynbo, J.U., Hjorth, J., Gorosabel, J., Egholm, M.P., ...
We present polarimetric observations of the afterglow of gamma-ray burst (GRB) 021004, obtained with the Nordic Optical Telescope (NOT) and the Very Large Telescope (VLT) between 8 and 17 hours after...
The blue host galaxy of the red GRB 000418 (2003)
Gorosabel, J., Klose, S., Christensen, L., Fynbo, J.U., Hjorth, J., Greiner, J., ...
We report on multi-band (UBVRIZJsKs) observations of the host galaxy of the April 18, 2000 gamma-ray burst. The Spectral Energy Distribution (SED) is analysed by fitting empirical and synthetic...
GRB 030227: The first multiwavelength afterglow of an INTEGRAL GRB (2003)
Castro-Tirado, A.J., Gorosabel, J., Guziy, S., Reverte, D., Castro Ceron, J.M., Ugarte Postigo, A. De, ...
We present multiwavelength observations of a gamma-ray burst detected by INTEGRAL (GRB 030227) between 5.3 hours and ~ 1.7 days after the event. Here we report the discovery of a dim optical...
Very High Column Density and Small Reddening toward GRB 020124 at z=3.20 (2003)
Hjorth, J., Moller, P., Gorosabel, J., Fynbo, J.U., Toft, S., Jaunsen, A.O., ...
We present optical and near-infrared observations of the dim afterglow of GRB 020124, obtained between 2 and 68 hr after the gamma-ray burst. The burst occurred in a very faint (R>~29.5) damped...
GRB 011121: A Collimated Outflow into Wind-blown Surroundings (2003)
Greiner, J., Klose, S., Salvato, M., Zeh, A., Schwartz, R., Hartmann, D.H., ...
We report optical and near-infrared follow-up observations of GRB 011121 collected predominantly at ESO telescopes in Chile. We discover a break in the afterglow light curve after 1.3 days, which...
A multi-colour study of the dark GRB 000210 host galaxy and its environment (2003)
Gorosabel, J., Christensen, L., Hjorth, J., Fynbo, J. U., Pedersen, H., Jensen, B. L., ...
The blue host galaxy of the red GRB 000418 (2003)
Gorosabel, J., Klose, S., Christensen, L., Fynbo, J. P. U., Hjorth, J., Greiner, J., ...
GRB 030227 : The first multiwavelength afterglow of an INTEGRAL GRB (2003)
Castro-Tirado, A. J., Gorosabel, J., Guziy, S., Reverte, D., Castro Cerón, J. M., ...
Optical and near-infrared observations of the GRB020405 afterglow (2003)
Masetti, N., Palazzi, E., Pian, E., Simoncelli, A., Hunt, L. K., Maiorano, E., ...
GRB 011121 : a collimated outflow into wind-blown surroundings (2003)
Greiner, J., Klose, S., Salvato, M., Zeh, A., Schwarz, R., Hartmann, D. H., ...
A very energetic supernova associated with the -ray burst of 29 March 2003. (2003)
Hjorth, J., Sollerman, J., Moller, P., Fynbo, J.P.U., Woosley, S.E., Kouveliotou, C., ...
A multi-colour study of the dark GRB 000210 host galaxy and its environment (2002)
Gorosabel, J., Christensen, L., Hjorth, J., Fynbo, J. U., Pedersen, H., Jensen, B. L., ...
We present UBVRIZJsHKs broad band photometry of the host galaxy of the dark gamma-ray burst (GRB) of February 10, 2000. These observations represent the most exhaustive photometry given to date of...
On the Progenitor of the type Ic Supernova 2002ap (2002)
Smartt, S.J., Vreeswijk, P.M., Ramirez-Ruiz, E., Gilmore, G.F., Meikle, W.P.S., Ferguson, A.M.N., ...
On the progenitor of the Type Ic supernova 2002ap (2002)
Smartt, S. J., Vreeswijk, P. M., Ramirez-Ruiz, E., Gilmore, G. F., Meikle, W. P. S., Ferguson, A. M. N., ...
This letter presents wide-field optical and and NIR UBVRI,Halpha,K' images of the galaxy M74 which were taken between 0.6-8.3 years before the discovery of the Type Ic SN2002ap. We have located the...
The Nature of the Host Galaxy of GRB 010222 (2002)
Salamanca, M.I. De, Vreeswijk, P.M., Kaper, L., Rol, E., Tanvir, N., ...
Gamma-ray bursts: the most powerful cosmic explosions (2002)
Kaper, L., Castro-Tirado, A.J., Fruchter, A., Greiner, J., Hjorth, J., Pian, E., ...
Contents: The GRACE consortium. GRBs and their afterglows. Evidence for collimation. The origin of GRBs: possible progenitors. The supernova connection. GRB host galaxies.
On the Progenitor of the Type Ic Supernova 2002ap (2002)
Smartt, S., Vreeswijk, P.M., Ramirez-Ruiz, E., Gilmore, G.F, Meikle, W.P.S., Ferguson, A.M.N., ...
Gorosabel, J., Fynbo, J.U., Hjorth, J., Wolf, C., Andersen, M.I., Pedersen, H., ...
We report the discovery of the optical and near-infrared counterparts to GRB 001011. The GRB 001011 error box determined by Beppo-SAX was simultaneously imaged in the near-infrared by the 3.58-m New...
The bright optical afterglow of the long GRB 001007 (2002)
Castro Ceron, J.M., Castro-Tirado, A.J., Gorosabel, J., Hjorth, J., Fynbo, J.U., Jensen, B.L., ...
We present optical follow up observations of the long GRB 001007 between 6.14 hours and ~468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep...
The host galaxy of GRB010222: The strongest damped Lyman-alpha system known (2001)
Salamanca, I., Kaper, L., Vreeswijk, P. M., Ellison, S. L., Rol, E., Tanvir, N., ...
Analysis of the absorption lines in the afterglow spectrum of the gamma-ray burst GRB010222 indicates that its host galaxy (at a redshift of z=1.476) is the strongest damped Lyman-alpha (DLA) system...
The star-formation rate in the host of GRB 990712 (2001)
Vreeswijk, P. M., Fender, R. P., Garrett, M. A., Tingay, S. J., Fruchter, A. S., Kaper, L.
We have observed the host galaxy of GRB 990712 at 1.4 GHz with the Australia Telescope Compact Array, to obtain an estimate of its total star-formation rate. We do not detect a source at the position...
The bright optical afterglow of the long GRB 001007 (2001)
Cerón, J. M. Castro, Castro-Tirado, A. J., Gorosabel, J., Hjorth, J., Fynbo, J. U., Jensen, B. L., ...
We present optical follow up observations of the long GRB 001007 between 6.14 hours and ~468 days after the event. An unusually bright optical afterglow (OA) was seen to decline following a steep...
Gorosabel, J., Fynbo, J. U., Hjorth, J., Wolf, C., Andersen, M. I., Pedersen, H., ...
We report the discovery of the optical and near-infrared counterparts to GRB 001011. The GRB 001011 error box determined by Beppo-SAX was simultaneously imaged in the near-infrared by the 3.58-m New...
Gaudi, B. S., Albrow, M. D., An, J., Caldwell, J. A. R., DePoy, D. L., ...
We analyze five years of PLANET photometry of microlensing events toward the Galactic bulge to search for the short-duration deviations from single lens light curves that are indicative of the...
GRB 990712: First Indication of Polarization Variability in a Gamma-Ray Burst Afterglow (2001)
Rol, E., Vreeswijk, P.M., Kaper, L., Galama, T.J., Paradijs, J.A. Van, ...
We report the detection of significant polarization in the optical afterglow of GRB 990712 on three instances: 0.44, 0.70, and 1.45 days after the gamma-ray burst, with (P, theta) being (2.9%+/-0.4%,...
The first year of optical-IR observations of SN1998bw (2001)
Danziger, I.J., Augusteijn, T., Brewer, J., Cappellaro, E., Doublier, V., Galama, T.J., ...
Multiwavelength Follow-Up Observations of Four Short-Duration, Hard-Spectrum Gamma-Ray Bursts (2001)
Hurley, K., Cline, T., Mazets, E., Golenetskii, S., Masetti, N., ...
The Metamorphosis of SN 1998bw (2001)
Patat, F., Cappellaro, E., Danziger, I.J., Mazzali, P., Sollerman, J., Augusteijn, T., ...
Limits on the Abundance of Galactic Planets From 5 Years of PLANET Observations (2001)
Albrow, M.D., An, J., Beaulieu, J.P., Caldwell, J.A.R., DePoy, D.L., Dominik, M., ...
The star-formation rate in the host of GRB 990712 (2001)
Vreeswijk, P.M., Fender, R.P., Garrett, M.A., Tingay, S.J., Fruchter, A.S., Kaper, L.
GRB 010214, candidate optical afterglow (2001)
Rol, E., Salamanca, M.I. De, Kaper, L., Vreeswijk, P.M., Lacerda, P., Hodgkin, S., ...
GRB 010222 - WHT BVRI images (2001)
Salamanca, M.I. De, Vreeswijk, P.M., Rol, E., Kaper, L., Tanvir, N., Fruchter, A., ...
GRB010214, candidate optical afterglow (2001)
Rol, E., Salamanca, M.I. De, Kaper, L., Vreeswijk, P.M., Lacerda, P., Hodgkin, S., ...
GRB010214, optical observations (2001)
Rol, E., Salamanca, M.I. De, Kaper, L., Vreeswijk, P.M., Tanvir, N.
The extraordinarily bright optical afterglow of GRB 991208 and its host galaxy (2001)
Castro-Tirado, A.J., Sokolov, V., Gorosabel, J., Castro Ceron, J.M., Greiner, J., ...
Broad-band optical observations of the extraordinarily bright optical afterglow of the intense gamma-ray burst GRB 991208 started ~2.1 days after the event and continued until 4 Apr. 2000. The flux...
The afterglow of the short/intermediate-duration gamma-ray burst GRB 000301C: A jet at z=2.04 (2001)
Jensen, B.L., Fynbo, J.U., Gorosabel, J., Hjorth, J., Holland, S., Moller, P., ...
The optical afterglow and host galaxy of GRB 000926 (2001)
Fynbo, J.U., Gorosabel, J., Dall, T.H., Hjorth, J., Pedersen, H., Andersen, M.I., ...
Smith, I.A., Tilanus, R.P.J., Tanvir, N., Vreeswijk, P.M., Rol, E., ...
We discuss our ongoing program of Target of Opportunity sub-millimeter observations of gamma-ray bursts (GRBs) using the Sub-millimetre Common-User Bolometer Array (SCUBA) on the James Clerk Maxwell...
The star-formation rate in the host of GRB 990712 (2001)
Fender, Robert P., Fruchter, A. S., Garrett, M. A., Kaper, L., Tingay, Steven J., Vreeswijk, P. M.
Abstract not available.
The star-formation rate in the host of GRB 990712 (2001)
Fender, Robert P., Fruchter, A. S., Garrett, M. A., Kaper, L., Tingay, Steven J., Vreeswijk, P. M.
Abstract not available.
The star-formation rate in the host of GRB 990712 (2001)
Fender, Robert P., Fruchter, A. S., Garrett, M. A., Kaper, L., Tingay, Steven J., Vreeswijk, P. M.
Abstract not available.
The star-formation rate in the host of GRB 990712 (2001)
Fender, Robert P., Fruchter, A. S., Garrett, M. A., Kaper, L., Tingay, Steven J., Vreeswijk, P. M.
Abstract not available.
The star-formation rate in the host of GRB 990712 (2001)
Fender, Robert P., Fruchter, A. S., Garrett, M. A., Kaper, L., Tingay, Steven J., Vreeswijk, P. M.
Abstract not available.
The Faint Sky Variability Survey I: An Overview (2000)
Groot, P. J., Vreeswijk, P. M., Everett, M. E., Howell, S. B.
The Faint Sky Variability Survey is aimed at finding variable objects in the brightness range between 17th and 25th magnitude on timescales between tens of minutes and years with photometric...
Vreeswijk, P. M., Fruchter, A., Kaper, L., Rol, E., Galama, T. J., Van Paradijs, J., ...
We present time-resolved optical spectroscopy of the afterglows of the gamma-ray bursts GRB 990510 and GRB 990712. Through the identification of several absorption lines in the first epoch GRB 990510...
Limits on the Abundance of Galactic Planets From Five Years of Planet Observations (2000)
Albrow, M. D., An, J., Caldwell, J. A. R., DePoy, D. L., Dominik, M., ...
We search for signatures of planets in 43 intensively monitored microlensing events that were observed between 1995 and 1999. Planets would be expected to cause a short duration (~1 day) deviation on...
Klose, S., Stecklum, B., Masetti, N., Pian, E., Palazzi, E., Henden, A. A., ...
We report near-infrared and optical follow-up observations of the afterglow of the Gamma-Ray Burst 000418 starting 2.5 days after the occurrence of the burst and extending over nearly seven weeks....
GRB990712: First Indication of Polarization Variability in a Gamma-ray Burst Afterglow (2000)
Rol, E., Vreeswijk, P. M., Kaper, L., Galama, T. J., Van Paradijs, J., ...
We report the detection of significant polarization in the optical afterglow of GRB990712 on three instances 0.44, 0.70 and 1.45 days after the gamma-ray burst, with (P, theta) being (2.9% +- 0.4%,...
Spectral Evolution of the Peculiar Ic Supernova 1998bw (2000)
Stathakis, R. A., Boyle, B. J., Jones, D. H., Bessell, M. S., Galama, T. J., Germany, Lisa M., ...
SN 1998bw holds the record for the most energetic Type Ic explosion, one of the brightest radio supenovae and probably the first supernova associated with a gamma-ray burst. In this paper we present...
Near-infrared detection and optical follow-up of the GRB990705 afterglow (2000)
Masetti, N., Palazzi, E., Pian, E., Hunt, L.K., Mendez, M., Frontera, F., ...
WSRT 4.8 GHz observations of GRB001109 (2000)
Rol, E., Vreeswijk, P.M., Strom, R.G., Richards, E., Kaper, L., ...
GRB 991208: HST Imaging of the Host Galaxy (2000)
Fruchter, A., Vreeswijk, P.M., Sokolov, V., Casto-Tirado, A.
Report on behalf of the larger HST GRB collaboration report
V, R, I band observations of GRB000926 (2000)
Rol, E., Vreeswijk, P.M., Tanvir, N.
On behalf of a larger collaboration
The likely Optical/Infrared Afterglow of GRB 001011 (2000)
Gorosabel, J., Hjorth, J., Pedersen, H., Jensen, B.L., Fynbo, J., Andersen, M.I., ...
Report on behalf of a joint afterglow network
GRB990712: Late time HST/STIS Observations (2000)
Fruchter, A., Vreeswijk, P.M., Hook, R., Pian, E.
Report for a larger HST GRB Collaboration
GRB 991216, HST/STIS observations (2000)
Vreeswijk, P.M., Fruchter, A., Ferguson, H., Kouveliotou, C.
Report for a larger HST GRB collaboration.
GRB000607, optical observations (2000)
Masetti, N., Palazzi, E., Pian, E., Castro-Tirado, A.J., Hudec, R., Soldan, J., ...
GRB000528, optical observations at ESO (2000)
Palazzi, E., Masetti, N., Pian, E., Frontera, F., Castro-Tirado, A.J., Hjorth, J., ...
The first year of optical-IR observations of SNI 1998bw (2000)
Danziger, I.J., Augusteijn, T., Brewer, J., Cappellaro, E., Doublier, V., Galama, T.J., ...
Spectral evolution of the peculiar Ic Supernova 1998bw (2000)
Stathakis, R.A., Boyle, B.J., Jones, D.H., Bessel, M.S., Galama, T.J., Germany, L.M., ...
Radio observations of the error box of GRB000301A (2000)
Rol, E., Strom, R.G., Vreeswijk, P.M., Kouveliotou, C., Kaper, L.
GRB 001109: deep JHK upper limits (2000)
Vreeswijk, P.M., Rol, E., Packham, C., Tanvir, N., Kouveliotou, C., ...
WSRT 4.8 GHz observations of GBR001109 (2000)
Rol, E., Vreeswijk, P.M., Strom, R.G., Richards, E., Kaper, L., ...
Near-infrared detection and optical follow-up of the GRB 990705 afterglow (2000)
Masetti, N., Palazzi, E., Pian, E., Hunt, L.K., Mendez, R.M., Frontera, F., ...
Discovery of the optical counterpart and early optical observations of GRB 990712 (2000)
Sahu, K.C., Vreeswijk, P.M., Bakos, G., Menzies, J.W., Bragaglia, A., Frontera, F., ...
Vreeswijk, P.M., Fruchter, A., Kaper, L., Rol, E., Galama, T.J., Paradijs, J.A. Van, ...
We present time-resolved optical spectroscopy of the afterglows of the gamma-ray bursts GRB 990510 and GRB 990712. Through the identification of several absorption lines in the first-epoch GRB 990510...
Evidence for a Supernova in reanalyzed optical and near-infrared images of GRB 970228 (2000)
Galama, T.J., Tanvir, N., Vreeswijk, P.M., Groot, P.J., Rol, E., ...
We present B-, V-, RC-, IC-, J-, H-, K-, and K'-band observations of the optical transient (OT) associated with GRB 970228, based on a reanalysis of previously used images and unpublished data. In...
Gamma-ray bursts - pushing limits with the VLT (2000)
Pedersen, H., Boer, M., Beuermann, K., Castro-Tirado, A.J., Fruchter, A., ...
GRB 001109: deep JHK upper limits (2000)
Vreeswijk, P.M., Rol, E., Packham, C., Tanvir, N., Kouveliotou, C., ...
Discovery of the optical counterpart and early optical observations of GRB 990712 (2000)
Sahu, Kailash C., Vreeswijk, P. M., Bakos, Gaspar A., Menzies, John W., Bragaglia, Angela, Frontera, Filippo, ...
We present the discovery observations of the optical counterpart of the gamma-ray burst GRB 990712 taken 4.16 hr after the outburst and discuss its light curve observed in the V, R, and I bands...
Spectral evolution of the peculiar Ic supernova 1998bw (2000)
Stathakis, R. A., Boyle, B. J., Jones, D. H., Bessell, M. S., Galama, T. J., Germany, L. M., ...
Supernova 1998bw holds the record for the most energetic Type Ic explosion, one of the brightest radio supernovae and probably the first supernova associated with a y-ray burst. In this paper we...
Discovery of the optical counterpart and early optical observations of GRB 990712 (2000)
Sahu, Kailash C., Vreeswijk, P. M., Bakos, Gaspar A., Menzies, John W., Bragaglia, Angela, Frontera, Filippo, ...
We present the discovery observations of the optical counterpart of the gamma-ray burst GRB 990712 taken 4.16 hr after the outburst and discuss its light curve observed in the V, R, and I bands...
Spectral evolution of the peculiar Ic supernova 1998bw (2000)
Stathakis, R. A., Boyle, B. J., Jones, D. H., Bessell, M. S., Galama, T. J., Germany, L. M., ...
Supernova 1998bw holds the record for the most energetic Type Ic explosion, one of the brightest radio supernovae and probably the first supernova associated with a y-ray burst. In this paper we...
VLT observations of GRB 990510 and its environment (1999)
Beuermann, K., Hessman, F. V., Reinsch, K., Nicklas, H., Vreeswijk, P. M., Galama, T. J., ...
We present BVRI photometry and spectrophotometry of GRB990510 obtained with the ESO VLT/Antu telescope during the late decline phase. Between days 8 and 29 after the burst, the afterglow faded from...
Evidence for a supernova in reanalyzed optical and near-infrared images of GRB970228 (1999)
Galama, T. J., Tanvir, N., Vreeswijk, P. M., Groot, P. J., Rol, E., ...
We present B-, V-, R_c-, I_c-, J-, H-, K- and K'-band observations of the optical transient (OT) associated with GRB970228, based on a reanalysis of previously used images and unpublished data. In...
Vreeswijk, P. M., Galama, T. J., Rol, E., Van Paradijs, J., Kouveliotou, C., ...
Following a BeppoSAX alert (Piro 1999a) and the discovery of the OT at SAAO (Vreeswijk et al. 1999a), we observed GRB 990510 with the FORS instrument on ESO's VLT Unit 1 (`Antu'). The burst is...
The X-ray, Optical and Infrared Counterpart to GRB 980703 (1999)
Vreeswijk, P. M., Galama, T. J., Owens, A., Oosterbroek, T., Geballe, T. R., Van Paradijs, J., ...
We report on X-ray, optical and infrared follow-up observations of GRB 980703. We detect a previously unknown X-ray source in the GRB error box; assuming a power law decline we find for its decay...
Spectral Energy Distributions and Light Curves of GRB 990123 and its Afterglow (1999)
Galama, T. J., Briggs, M. S., Vreeswijk, P. M., Rol, E., Band, D., ...
Gamma-ray bursts (GRBs) are thought to result from the interaction of an extremely relativistic outflow interacting with a small amount of material surrounding the site of the explosion....
The X-Ray, optical, and infrared counterpart to GRB 980703 (1999)
Vreeswijk, P.M., Galama, T.J., Owens, A., Oosterbroek, T., Geballe, T.R., Paradijs, J. Van, ...
We report on X-ray, optical, and infrared follow-up observations of GRB 980703. We detect a previously unknown X-ray source in the GRB error box; assuming a power-law decline, we find for its decay...
Going faint and variable: the faint sky variability survey (1999)
Groot, P.J., Everett, M., Howell, S.B., Vreeswijk, P.M., Huber, M., Paradijs, J.A. Van
Detection of polarization in the afterglow of GRB 990510 with the ESO Very Large Telescope (1999)
Vreeswijk, P.M., Galama, T.J., Rol, E., Paradijs, J.A. Van, Kouveliotou, C., ...
Following a BeppoSAX alert and the discovery of the OT at SAAO, we observed GRB 990510 with the FORS instrument on ESO's VLT Unit 1 (Antu). The burst is unremarkable in gamma rays, but in optical is...
The x-ray, optical and infrared counterpart to GRB 980703 (1999)
Vreeswijk, P.M., Galama, T.J., Owens, A.N., Oosterbroek, T., Geballe, T.R., Paradijs, J.A. Van, ...
On the possible association of SN 1998bw and GRB 980425 (1999)
Galama, T.J., Vreeswijk, P.M., Paradijs, J.A. Van, Kouveliotou, C., Augusteijn, T., Patat, F., ...
We here discuss the possibility that the peculiar supernova SN 1998bw and the Gamma-Ray Burst GRB 980425 are associated. If the two are related, the energy radiated in gamma rays is at least four...
Broad-band spectral evolution of GRB afterglows (1999)
Masetti, N., Pian, E., Palazzi, E., Amati, L., Galama, T.J., Nicastro, L., ...
Physical parameters of GRB 970508 from its afterglow synchrotron emission (1999)
Galama, T.J., Vreeswijk, P.M., Groot, P.J., Paradijs, J.A. Van, Kouveliotou, C., ...
For the case of an adiabatically expanding blast wave, which is applicable to observed gamma-ray burst (GRB) afterglows at late times, we give expressions to infer the physical properties of the...
The x-ray, optical and infrared counterpart to GRB 980703 (1999)
Vreeswijk, P.M., Galama, T.J., Owens, A.N., Oosterbroek, T., Geballe, T.R., Paradijs, J.A. Van, ...
VLT observations of GRB 990510 and its environment (1999)
Beuermann, K., Hessman, F.V., Reinsch, K., Nicklas, H., Vreeswijk, P.M., Galama, T.J., ...
Smith, I.A., Tilanus, R.P.J., Paradijs, J.A. Van, Galama, T.J., Groot, P.J., Vreeswijk, P.M., ...
We discuss our ongoing program of Target of Opportunity observations of gamma-ray bursts (GRBs) using the SCUBA instrument on the James Clerk Maxwell Telescope. We present observations of GRB 970508,...
The X-Ray, Optical, And Infrared Counterpart To GRB 980703 (1999)
P. M. Vreeswijk, T. J. Galama, A. Owens, T. Oosterbroek, T. R. Geballe, J. Van Paradijs, ...
We report on X-ray, optical, and infrared follow-up observations of GRB 980703. We detect a previously unknown X-ray source in the GRB error box ; assuming a power-law decline, we nd for its decay...
A `Hypernova' model for SN 1998bw associated with gamma-ray burst of 25 April 1998 (1998)
Iwamoto, K., Mazzali, P. A., Nomoto, K., Umeda, H., Nakamura, T., Patat, F., ...
The discovery of the peculiar supernova (SN) 1998bw and its possible association with the gamma-ray burst (GRB) 980425$^{1,2,3}$ provide new clues to the understanding of the explosion mechanism of...
On the Association of Gamma-Ray Bursts with Supernovae (1998)
Kippen, R. M., Briggs, M. S., Kommers, J. M., Kouveliotou, C., Hurley, K., Robinson, C. R., ...
The recent discovery of a supernova (SN 1998bw) seemingly associated with GRB~980425 adds a new twist to the decades-old debate over the origin of gamma-ray bursts. To investigate the possibility...
Discovery of the peculiar supernova 1998bw in the error box of GRB980425 (1998)
Galama, T. J., Vreeswijk, P. M., Van Paradijs, J., Kouveliotou, C., Augusteijn, T., Hainaut, O. R., ...
The discovery of X-ray, optical and radio afterglows of gamma-ray bursts (GRBs) and the measurements of the distances to some of them have established that these events come from Gpc distances and...
A 'hypernova' model for the supernova associated with the gamma-ray burst of 25 April 1998 (1998)
Iwamoto, K., Mazzali, P., Nomoto, K., Umeda, H., Nakamura, T., Young, T.R., ...
An unusual supernova in the error box of the GRB of 25 April 1998 (1998)
Galama, T.J., Vreeswijk, P.M., Paradijs, J.A. Van, Kouveliotou, C., Augusteijn, T., Hainaut, O.R., ...
Optical and near-infrared follow-up observations of GRB 980329 (1998)
Palazzi, E., Pian, E., Masetti, N., Nicastro, L., Vreeswijk, P.M., Galama, T.J., ...
An unusual supernova in the error box of the gamma-ray burst of 25 April 1998. (1998)
Galama, T.J., Vreeswijk, P.M., Paradijs, J. Van, Kouveliotou, C., Augusteijn, T., Bohnhardt, H., ...
The rapid decay of the optical emission from GRB 980326 and its possible implications (1998)
Groot, P.J., Galama, T.J., Vreeswijk, P.M., Pian, E., Palazzi, E., ...
We report the discovery of the optical counterpart to GRB 980326. Its rapid optical decay can be characterized by a power law with exponent - 2.10+/-0.13 and a constant underlying source at...