Gorosabel, J., Postigo, A. De Ugarte, Castro-Tirado, A. J., Agudo, I., Jelinek, M., Leon, S., ...
We report the results of an optical linear polarization monitoring carried out simultaneously for SN2007uy and SN2008D. The observations span 74.9 days, starting 3.6 days after the X-ray outburst of...
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...
A photometric redshift of $z=1.8^{+0.4}_{-0.3}$ for the \agile GRB 080514B (2008)
Rossi, A., Postigo, A. De Ugarte, Ferrero, P., Kann, D. A., Klose, S., Schulze, S., ...
Aims: The AGILE gamma-ray burst GRB 080514B is the first burst with detected emission above 30 MeV and an optical afterglow. However, no spectroscopic redshift for this burst is known. Methods: We...
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 a luminous, unusual X-ray transient in the nearby spiral galaxy NGC 2770. We present early spectra of the optical counterpart (1.77 days after the X-ray...
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 extreme, red afterglow of GRB 060923A: Distance or dust? (2008)
Tanvir, N. R., Levan, A. J., Rol, E., Starling, R. L. C., Gorosabel, J., Priddey, R. S., ...
Gamma-ray bursts are powerful probes of the early universe, but locating and identifying very distant GRBs remains challenging. We report here the discovery of the K-band afterglow of Swift GRB...
On the distribution of stellar masses in gamma-ray burst host galaxies (2008)
Cerón, J. M. Castro, Michałowski, M. J., Hjorth, J., Malesani, D., Gorosabel, J., Watson, D., ...
We analyse Spitzer images of 30 long-duration gamma-ray burst (GRB) host galaxies. We estimate their total stellar masses (M*) based on the rest-frame K-band luminosities and constrain their...
The Spectral Lag of GRB060505: A Likely Member of the Long Duration Class (2008)
McBreen, S., Foley, S., Watson, D., Hanlon, L., Malesani, D., Fynbo, J. P. U., ...
Two long gamma-ray bursts, GRB 060505 and GRB 060614, occurred in nearby galaxies at redshifts of 0.089 and 0.125 respectively. Due to their proximity and durations, deep follow-up campaigns to...
The Carbon-rich type Ic SN 2007gr: the photospheric phase (2008)
Valenti, S., Elias-Rosa, N., Taubenberger, S., Stanishev, V., Agnoletto, I., Sauer, D., ...
The spectral lag of GRB 060505: a likely member of the long-duration class (2008)
McBreen, S., Foley, S., Watson, D., Hanlon, L., Malesani, D., Fynbo, J. P. U., ...
On the nature of the short duration GRB 050906 (2008)
Levan, A., Tanvir, N., Jakobsson, P., Chapman, R., Hjorth, J., Priddey, R., ...
The carbon-rich type Ic SN 2007gr: the photospheric phase (2007)
Valenti, S., Elias-Rosa, N., Taubenberger, S., Stanishev, V., Agnoletto, I., Sauer, D., ...
The first two months of spectroscopic and photometric monitoring of the nearby type Ic SN 2007gr are presented. The very early discovery (less than 5 days after the explosion) and the relatively...
GRB 060206 and the quandary of achromatic breaks in afterglow light curves (2007)
Curran, Peter A., Van Der Horst, A.J., Starling, R.L.C., Castro-Tirado, A.J., Fynbo, J.P.U., ...
Gamma-ray burst afterglow observations in the Swift era have a perceived lack of achromatic jet breaks compared to the BeppoSAX era. We present our multi-wavelength analysis of GRB 060206 as an...
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...
A multi-wavelength study of z = 3.15 Lyman-alpha emitters in the GOODS South Field (2007)
Nilsson, Kim K., Moeller, P., Moeller, O., Fynbo, J. P. U., Michalowski, M. J., Watson, D., ...
Context: Ly-alpha-emitters have proven to be excellent probes of faint, star-forming galaxies in the high redshift universe. However, although the sample of known emitters is increasingly growing,...
On the nature of the short duration GRB 050906 (2007)
Levan, A. J., Tanvir, N. R., Jakobsson, P., Chapman, R., Hjorth, J., Priddey, R. S., ...
We present deep optical and infrared observations of the short duration GRB 050906. Although no X-ray or optical/IR afterglow was discovered to deep limits, the error circle of the GRB (as derived...
A Search for Host Galaxies of 24 Gamma-Ray Bursts (2007)
Jaunsen, A. O., Fynbo, J. P. U., Hjorth, J., Thoene, C. C., Feron, C., ...
We report the results from observations of 24 gamma ray burst (GRB) fields from 2005 and 2006 undertaken at the Danish 1.54m telescope at ESO/La Silla. Photometry and positions for two previously...
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 multi-wavelength study of z = 3.15 Lyman-α emitters in the GOODS south field (2007)
Nilsson, K. K., Møller, P., Möller, O., Fynbo, J. P. U., Michaloswski, M. J., Watson, D., ...
GRB 060206 and the quandary of achromatic breaks in afterglow light curves. (2007)
Curran, P., Van Der Horst, A.J., Starling, R.L., Castro-Tirado, A.J., Fynbo, J.P.U., ...
Fundamental Properties of GRB-Selected Galaxies: A Swift/VLT Legacy Survey. (2007)
Jakobsson, P., Hjorth, J., Fynbo, J.P.U., Gorosabel, J., Jaunsen, A.O.
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...
Ferrero, P., Sanchez, S. F., Kann, D. A., Klose, S., Greiner, J., Gorosabel, J., ...
We report early follow-up observations of the error box of the short burst 050813 using the telescopes at Calar Alto and at Observatorio Sierra Nevada (OSN), followed by deep VLT/FORS2 I-band...
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...
Multiwavelength studies of the optically dark gamma-ray burst 001025A (2006)
Pedersen, K., Hurley, K., Hjorth, J., Smith, D. A., Andersen, M. I., Christensen, L., ...
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., ...
No supernovae associated with two long-duration gamma ray bursts. (2006)
Fynbo, J.P.U., Watson, D., Thoene, C.C., Sollerman, J., Bloom, J.S., Davis, T.M., ...
Are short y-ray bursts collimated GRB 050709, a flare but no break. (2006)
Watson, D., Hjorth, J., Jakobsson, P., Xu, D., Fynbo, J.P.U., Sollerman, J., ...
Supernova 2006aj and the associated X-Ray Flash 060218. (2006)
Sollerman, J., Jaunsen, A.O., Fynbo, J.P.U., Hjorth, J., Jakobsson, P., Stritzinger, I.M., ...
Low-resolution VLT spectroscopy of GRBs 991216, 011211 and 021211. (2006)
Vreeswijk, P.M., Smette, A., Fruchter, S., Palazzi, E., Rol, E., ...
VLT optical spectroscopy of GRB 060512 (2006)
Starling, R., Thoene, C.C., Fynbo, J.P.U., Vreeswijk, P., Hjorth, J.
Not Available
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...
GRB 060714: OA redshift (2006)
Jakobsson, P., Vreeswijk, P., Fynbo, J.P.U., Hjorth, J., Starling, R., Kann, D.A., ...
Not Available
GRB 060708: VLT spectroscopy (2006)
Jakobsson, P., Vreeswijk, P., Ellison, S.L., Gorosabel, J., Tanvir, N., Fynbo, J.P.U., ...
Not Available
The Short Gamma-Ray Burst Revolution (2006)
Hjorth, J., Levan, A.J., Tanvir, N., Starling, R., Klose, S., Kouveliotou, C., ...
Swift, a dedicated gamma-ray burst (GRB) satellite with ultrarapid slewing capability, and a suite of ground-based (ESO) telescopes have recently achieved a major breakthrough: detecting the first...
Three intervening galaxy absorbers towards GRB 060418: faint and dusty? (2006)
Ellison, S.L., Vreeswijk, P., Ledoux, C., Willis, J.P., Jaunsen, A., ...
We present an analysis of three strong, intervening Mg II absorption systems (zabs = 0.603, 0.656, 1.107) towards the optical afterglow of gamma-ray burst (GRB) 060418. From high-resolution...
The GRB 030329 host: a blue low metallicity subluminous galaxy with intense star formation. (2005)
Gorosabel, J., Perez-Ramirez, D., Sollerman, J., Fynbo, J.P.U., Castro-Tirado, A.J., ...
Spectro-photometric study of the GRB 030329 host galaxy. (2005)
Gorosabel, J., Perez-Ramirez, D., Sollerman, J., Fynbo, J.P.U., Castro-Tirado, A.J., ...
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...
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., ...
Castro Cerón, J. M., Gorosabel, J., Castro-Tirado, A. J., Sokolov, V. V., Afanasiev, V. L., Fatkhullin, T. A., ...
Discovery of the near-IR afterglow and of the host of GRB 030528 (2004)
Rau, A., Greiner, J., Klose, S., Salvato, M., Castro Cerón, J. M., Hartmann, D. H., ...
The supernova 2003lw associated with X-ray flash 031203. (2004)
Thomsen, B., Hjorth, J., Watson, D., Gorosabel, J., Fynbo, J.P.U., Jensen, B.L., ...
Small-scale variations in the radiating surface of the GRB 011211 jet. (2004)
Jakobsson, P., Hjorth, J., Ramirez-Ruiz, E., Kouveliotou, C., Pedersen, K., Fynbo, J.P.U., ...
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., ...
On the jet structure and magnetic field configuration of GRB 020813 (2004)
Lazzati, D., Covino, S., Gorosabel, J., Rossi, E., Ghisellini, G., Rol, E., ...