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...
A big γ-ray burst at a redshift of z ≈ 8.2 (2009)
Tanvir, N. R., Fox, D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., ...
4 pages, 3 figures.-- ArXiv pre-print available at: http://arxiv.org/abs/0906.1577
A γ-ray burst at a redshift of z ≈ 8.2 (2009)
Tanvir, N. R., Fox , D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., ...
Long-duration γ-ray bursts (GRBs) are thought to result from the explosions of certain massive stars, and some are bright enough that they should be observable out to redshifts of z > 20 using...
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...
A glimpse of the end of the dark ages: the gamma-ray burst of 23 April 2009 at redshift 8.3 (2009)
Tanvir, N. R., Fox, D. B., Levan, A. J., Berger, E., Wiersema, K., Fynbo, J. P. U., ...
It is thought that the first generations of massive stars in the Universe were an important, and quite possibly dominant, source of the ultra-violet radiation that reionized the hydrogen gas in the...
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., ...
E. Marmer, F. Dentener, J. V. Aardenne, F. Cavalli, E. Vignati, K. Velchev, ...
Ship emission estimates diverge widely for all chemical compounds for several reasons: use of different methodologies (bottom-up or top-down), activity data and emission factors can easily result in...
E. Marmer, F. Dentener, J. V. Aardenne, F. Cavalli, E. Vignati, K. Velchev, ...
Ship emission estimates diverge widely for all chemical compounds for several reasons: use of different methodologies (bottom-up or top-down), activity data and emission factors can easily result in...
Measuring atmospheric composition change. (2009)
Laj, P., Klausen, J., Bilde, M., Plaß-Duelmer, C., Pappalardo, G., Clerbaux, C., ...
Atmospheric Environment, 43(2009) S.5351-5414
Xu, D., Starling, R. L. C., Fynbo, J. P. U., Sollerman, J., Yost, S., Watson, D., ...
GRB060505 and GRB060614 are nearby long-duration gamma-ray bursts (LGRBs) without accompanying supernovae (SNe) down to very strict limits. They thereby challenge the conventional LGRB-SN connection...
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...
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)...
The extreme red afterglow of GRB 060923: distance or dust? (2008)
Tanvir, N., Levan, A., Rol, E., Starling, R.L., Gorosabel, J., Priddey, R., ...
‘The definitive version is available at www.blackwell-synergy.com.’ Copyright Blackwell Publishing DOI: 10.1111/j.1365-2966.2008.13496.x
On the nature of the short-duration GRB 050906 (2008)
Levan, A.J., Tanvir, N.R., Jakobsson, P., Chapman, R., Hjorth, J., Priddey, R.S., ...
We present deep optical and infrared (IR) 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 gamma-ray...
Thöne, C.C., Fynbo, J.P.U., Östlin, G., Milvang-Jensen, B., Wiersema, K., Malesani, D., ...
GRB 060505 was the first well-observed nearby possible long-duration gamma-ray burst ( GRB) that had no associated supernova. Here we present spatially resolved spectra of the host galaxy of GRB...
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...
An optical time-delay estimate for the double gravitational lens system B1600+434 1 (2007)
I. Burud, J. Hjorth, A. O. Jaunsen, M. I. Andersen, H. Korhonen, J. W. Clasen, ...
and R. stensen Department of Physics
An optical time-delay estimate for the double gravitational lens system B1600+434 (2007)
I. Burud, J. Hjorth, A. O. Jaunsen, M. I. Andersen, H. Korhonen, J. W. Clasen, ...
We present optical I-band light curves of the gravitationally lensed double QSO B1600+434 from observations obtained at the Nordic Optical Telescope (NOT) between April 1998 and November 1999. The...
The Interest In, F. Courbin, C. Lidman, I. Burud, J. Hjorth, P. Magain, ...
this report recent VLT FORS2 observations of HE 1104-1805, a doubly imaged quasar at z=2.319 discovered in the framework of the Hamburg-ESO survey for bright quasars (Wisotzki et al. 1993). The...
High resolution optical and near-IR imaging of the quadruple quasar RX J0911.4+0551 (2007)
I. Burud, F. Courbin, C. Lidman, A. O. Jaunsen, J. Hjorth, M. I. Andersen, ...
We report the detection of four images in the recently discovered lensed QSO RX J0911.4+0551. With a maximum angular separation of 3:1 00 , it is the quadruply imaged QSO with the widest known...
X-ray Temperatures of Lensing Clusters (2007)
J. Hjorth, J. Oukbir, E. Van Kampen
If clusters of galaxies are homologous and the intracluster gas is in global equilibrium with the dark matter a tight relation between mass and X-ray temperature is expected in any cosmological...
Institute of Astronomy, Madingley Road, (2007)
J. Hjorth, Cambridge Cb Ha, I. Jrgensen
We probe the distribution of mass out to more than 2 effective radii in two elliptical (E) galaxies at z = 0:5 and z = 0:8 that act as gravitational lenses and compare the ellipticity, extent and...
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...
Ferrero, P., Sanchez, S.F., Kann, D.A., Klose, S., Greiner, J., Gorosabel, J., ...
Original article can be found at: http://www.iop.org/EJ/journal/aj Copyright American Astronomical Society [Full text of this article is not available in the UHRA]
Watson, D., Hjorth, J., Fynbo, J.P.U., Jakobsson, P., Foley, S., Sollerman, J., ...
Original article can be found at: http://www.iop.org/EJ/journal/apjl Copyright American Astronomical Society DOI: 10.1086/518310 [Full text of this article is not available in the UHRA]
Watson, D., Hjorth, J., Fynbo, J.P.U., Jakobsson, P., Foley, S., Sollerman, J., ...
We compare the H I column densities from Lyalpha absorption to the metal column densities from X-ray absorption in gamma-ray burst (GRB) afterglows. Eight bursts of 17 entering the sample have...
Vreeswijk, P.M., Ledoux, C., Smette, A., Ellison, S.L., Jaunsen, A.O., Andersen, M.I., ...
We present high-resolution spectroscopic observations of GRB 060418, obtained with VLT/UVES. These observations were triggered using the VLT Rapid-Response Mode (RRM), which allows for automated...
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 gamma-ray burst GRB 060927 using the robotic ROTSE-IIIa telescope and a suite of larger aperture ground-based telescopes. An optical afterglow was detected...
GRB 051022: Physical Parameters and Extinction of a Prototype Dark Burst (2007)
Rol, E., Horst, A. Van Der, Wiersema, K., Patel, S.K., Levan, A., Nysewander, M., ...
GRB 051022 was undetected to deep limits in early optical observations, but precise astrometry from radio and X-rays showed that it most likely originated in a galaxy at z~0.8. We report radio,...
GRB 070411: break in the optical light curve (2007)
Malesani, D., Rol, E., Antonelli, L.A., Fynbo, J.P.U., Curran, P.A., Wiersema, K., ...
Not Available
Gamma-Ray Bursts as Cosmological Probes: from Concept to Reality (2007)
Fynbo, J., Vreeswijk, P., Jakobsson, P., Jaunsen, A., Ledoux, C., Malesani, D., ...
We describe the current status and recent results from our ongoing programme at the VLT aimed at performing target-of-opportunity follow-up spectroscopy of gamma-ray burst (GRB) afterglows. Our...
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 GRB 050813 using the telescopes at Calar Alto and Observatorio Sierra Nevada, followed by deep VLT FORS2 I-band observations...
HI column densities of z > 2 Swift gamma-ray bursts (2006)
Jakobsson, P., Fynbo, J. P. U., Ledoux, C., Vreeswijk, P., Kann, D. A., Hjorth, J., ...
Context. Before the launch of the Swift satellite, the majority of the gamma-ray burst (GRB) afterglows for which Lya was redshifted into the observable spectrum showed evidence for a damped Lya...
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...
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...
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,...
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...
The faint afterglow and host galaxy of the short-hard GRB 060121 (2006)
Levan, A. J., Tanvir, N. R., Fruchter, A. S., Rol, E., Fynbo, J., Hjorth, J., ...
We present optical and X-ray observations of the afterglow and host galaxy of the short-hard GRB 060121. The faint R-band afterglow is seen to decline as t^(-0.66) while the X-ray falls as t^-1.18,...
A Mean Redshift of 2.8 for Swift gamma - ray bursts (2006)
Jakobsson, P., Levan, A., Fynbo, J., Priddey, R., Hjorth, J., Tanvir, N., ...
Evidence for a Supernova Associated with the X-ray Flash 020903 (2006)
Bersier, D., Fruchter, A. S., Gorosabel, J., Levan, A., Burud, I., ...
We present ground-based and Hubble Space Telescope optical observations of the X-ray flash (XRF) 020903, covering 300 days. The afterglow showed a very rapid rise in the first day, followed by a...
Supernova 2006aj and the associated X-Ray Flash 060218 (2006)
Sollerman, J., Jaunsen, A., Fynbo, J., Hjorth, J., Jakobsson, P., Stritzinger, M., ...
We have studied the afterglow of the gamma-ray burst (GRB) of February 18, 2006. This is a nearby long GRB, with a very low peak energy, and is therefore classified as an X-ray Flash (XRF)....
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., ...
No supernovae associated with two long-duration gamma-ray bursts (2006)
Fynbo, J.P.U., Watson, D., Thone, C.C., Sollerman, J., Bloom, J.S., Davis, T.M., ...
Nakos, Th, Courbin, F, Poels, Joël, Libbrecht, C, Magain, Pierre, Surdej, Jean, ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
A short gamma-ray burst apparently associated with an elliptical galaxy at redshift z = 0.225 (2005)
Sarazin, C L, O'Brien, P T, Zhang, B, Barthelmy, S D, ...
Gamma-ray bursts (GRBs) come in two classes: long (> 2 s), soft-spectrum bursts and short, hard events. Most progress has been made on understanding the long GRBs, which are typically observed at...
Nakos, Th., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673).The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
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...
A possible bright blue SN in the afterglow of GRB 020305 (2005)
Gorosabel, J., Fynbo, J. P. U., Fruchter, A., Levan, A., Hjorth, J., Nugent, P., ...
We report on ground-based and HST(+STIS) imaging of the afterglow and host galaxy of the Gamma-Ray Burst (GRB) of March 5 2002. The GRB occurred in a R=25.17+/-0.14 galaxy, which apparently is part...
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]
Nakos, T., Courbin, F., Poels, J., Libbrecht, C., Magain, P., Surdej, J., ...
We present the results of two-band CCD photometric monitoring of the gravitationally lensed quasar Q 0142-100 (UM 673). The data, obtained at ESO-La Silla with the 1.54 m Danish telescope in the Gunn...
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...
Discovery of the Near-IR Afterglow and of the Host of GRB 030528 (2004)
Rau, A., Greiner, J., Klose, S., Salvato, M., Cerón, J. M. Castro, Hartmann, D. H., ...
The rapid dissemination of an arcmin-sized HETE-2 localization of the long-duration X-ray flash GRB 030528 led to a ground-based multi-observatory follow-up campaign. We report the discovery of the...
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...
GRB 020410: A Gamma-Ray Burst Afterglow Discovered by its Supernova Light (2004)
Levan, A., Nugent, P., Fruchter, A., Burud, I, Branch, D., Rhoads, J., ...
We present the discovery and monitoring of the optical transient (OT) associated with GRB 020410. The fading OT was found by Hubble Space Telescope (HST) observations taken 28 and 65 days after burst...
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., ...
The X-Ray Flash (XRF), 031203 with a host galaxy at z=0.1055, is, apart from GRB980425, the closest Gamma-Ray Burst (GRB) or XRF known to date. We monitored its host galaxy from 1-100 days after the...
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...
On the jet structure and magnetic field configuration of GRB 020813 (2004)
Lazzati, D., Covino, S., Gorosabel, J., Rossi, E., Ghisellini, G., Rol, E., ...
The polarization curve of GRB 020813 is discussed and compared to different models for the structure, evolution and magnetisation properties of the jet and the interstellar medium onto which the...
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., ...
The X-Ray Flash (XRF), 031203 with a host galaxy at z = 0.1055, is, apart from GRB 980425, the closest y-Ray Burst (GRB) or XRF known to date. We have monitored its host galaxy from 1-100 days after...
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., ...
The X-Ray Flash (XRF), 031203 with a host galaxy at z = 0.1055, is, apart from GRB 980425, the closest y-Ray Burst (GRB) or XRF known to date. We have monitored its host galaxy from 1-100 days after...
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...
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 afterglow and the host galaxy of GRB 011211 (2003)
Jakobsson, P., Hjorth, J., Fynbo, J. P. U., Gorosabel, J., Pedersen, K., Burud, I., ...
We present optical, near-infrared, and X-ray observations of the optical afterglow (OA) of the X-ray rich, long-duration gamma-ray burst GRB 011211. Hubble Space Telescope (HST) data obtained 14, 26,...
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...
On the Ly-alpha emission from gamma-ray burst host galaxies: evidence for low metallicities (2003)
Fynbo, J. P. U., Jakobsson, P., Moller, P., Hjorth, J., Thomsen, B., Andersen, M. I., ...
We report on the results of a search for Ly-alpha emission from the host galaxy of the z=2.140 GRB 011211 and other galaxies in its surrounding field. We detect Ly-alpha emission from the host as...
Variable polarization in the optical afterglow of GRB 021004 (2003)
Rol, E., Fynbo, J. P. 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...
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...
LC-MS analysis of aerosol particles from the oxidation of ?-pinene by ozone and OH-radicals (2003)
Winterhalter, R., Van Dingenen, R., Larsen, B. R., Jensen, N. R., Hjorth, J.
The time resolved chemical composition of aerosol particles, formed by the oxidation of alpha-pinene has been investigated by liquid chromatography/mass spectrometry (LC-MS) using negative and...
LC-MS analysis of aerosol particles from the oxidation of ?-pinene by ozone and OH-radicals (2003)
Winterhalter, R., Van Dingenen, R., Larsen, B. R., Jensen, N. R., Hjorth, J.
The time resolved chemical composition of aerosol particles, formed by the oxidation of alpha-pinene has been investigated by liquid chromatography/mass spectrometry (LC-MS) using negative and...
Optical Photometry of GRB 021004: The First Month. (2003)
Holland, S.T., Weidinger, M., Fynbo, J.P.U., Gorosabel, J., Hjorth, J., Pedersen, K., ...
Original article can be found at: http://www.iop.org/EJ/journal/aj Copyright American Astronomical Society DOI: 10.1086/374235 [Full text of this article is not available in the UHRA]
Neftel, A., Spirig, C., Prevot, A.S.H., Furger, M., Stutz, J., Vogel, B., ...
Journal of Geophysical Research, 107(D22), 8188, doi:10.1029/2001JD001263, 2002
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...
Development of axon pathways in the zebrafish central nervous system (2002)
The zebrafish has a number of distinct advantages as an experimental model in developmental biology. For example, large numbers of embryos can be generated in each lay, development proceeds rapidly...
An Optical Time-Delay for the Lensed BAL Quasar HE2149-2745 (2001)
Burud, I., Courbin, F., Magain, P., Lidman, C., Hutsemekers, D., ...
We present optical V and i-band light curves of the gravitationally lensed BAL quasar HE2149-2745. The data, obtained with the 1.5m Danish Telescope (ESO-La Silla) between October 1998 and December...
The extraordinarily bright optical afterglow of GRB 991208 and its host galaxy (2001)
Castro-Tirado, A. J., Sokolov, V. V., Gorosabel, J., Ceron, J. M. Castro, 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...
HST/STIS observations of GRB000301C: CCD imaging and NUV MAMA spectroscopy (2000)
Smette, A., Fruchter, A. S., Gull, T. R., Sahu, K. C., Petro, L., Ferguson, H., ...
We present HST/STIS observations of the optical counterpart (OT) of the gamma-ray burster GRB 000301C obtained on 2000 March 6, five days after the burst. CCD clear aperture imaging reveals a R ~...
Reactions of Cl atoms with selected VOCs: Kinetics, products and mechanisms (1998)
Jensen, NR, Saastad, O, Hjorth, J
The reactions of isoprene, MBO (2-methyl-3-buten-2-ol) and toluene with chlorine atoms have been studied at 298 +/- 5 K and 740 +/- 5 Torr with the use of FTIR spectroscopy. Major products of the...
Detection of the lensing galaxy for the double QSO HE 1104-1805 (1998)
Remy, M., Surdej, Jean, Hjorth, J., Refsdal, S., Wucknitz, O., ...
High angular resolution ground-based direct imaging (V, R, I_c) of the double QSO HE 1104-1805 has been obtained with the NOT and NTT telescopes. Analysis of these data led to the first detection of...
ESO & NOT photometric monitoring of the Cloverleaf quasar (1997)
Ostensen, R, Remy, M, Lindblad, P O, Refsdal, S, Stabell, R, Surdej, Jean, ...
The Cloverleaf quasar, H1413+117, has been photometrically monitored at ESO (La Silla, Chile) and with the NOT (La Palma, Spain) during the period 1987--1994. All good quality CCD frames have been...
R. Østensen, M. Remy, P. O. Lindblad, S. Refsdal, R. Stabell, J. Surdej, ...
ESO & NOT photometric monitoring of the Cloverleaf
Monitoring of the Einstein Cross with the Nordic Optical Telscope (1995)
Oestensen, R., Refsdal, S., Stabell, R., Teuber, J., Emanuelsen, P. I., Festin, L., ...
We report results from five years of monitoring of the Einstein Cross (Q 2237+0305) with the Nordic Optical Telescope. The photometry, mainly in the R and I bands, has been performed by a PSF fitting...