output
20002026
most citedVery high column density and small reddening towards GRB 020124 at z = 3.20

112 citations

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15 papers · 1 filter

astro-ph2005★ 10 cited

The Calar Alto lunar occultation program: update and new results

A. Richichi, O. Fors, M. Merino +6

We present an update of the lunar occultation program which is routinely carried out in the near-IR at the Calar Alto Observatory. A total of 350 events were recorded since our las…

astro-ph2004★ 10 cited

On the constraining observations of the dark GRB 001109 and the properties of a z = 0.398 radio selected starburst galaxy contained in its error box

J. M. Castro Cerón, J. Gorosabel, A. J. Castro-Tirado +24

We present optical and NIR (near infrared) follow up observations of the GRB 001109 from 1 to 300 days after the burst. No transient emission was found at these wavelengths within…

astro-ph2003★ 63 cited

GRB 011121: A collimated outflow into wind-blown surroundings

J. Greiner, S. Klose, M. Salvato +31

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 achroma…

astro-ph2003★ 112 cited

Very high column density and small reddening towards GRB 020124 at z = 3.20

J. Hjorth, P. Møller, J. Gorosabel +27

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…

astro-ph2003★ 45 cited

The blue host galaxy of the red GRB 000418

J. Gorosabel, S. Klose, L. Christensen +25

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…

astro-ph2003★ 58 cited

Variable polarization in the optical afterglow of GRB 021004

E. Rol, R. A. M. J. Wijers, J. P. U. Fynbo +19

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…

astro-ph2003★ 94 cited

Optical and near-infrared observations of the GRB020405 afterglow

N. Masetti, E. Palazzi, E. Pian +33

(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…

astro-ph2002★ 63 cited

A multi-colour study of the dark GRB 000210 host galaxy and its environment

J. Gorosabel, L. Christensen, J. Hjorth +25

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…

astro-ph2002★ 11 cited

Detection of an optical transient following the 13 March 2000 short/hard gamma-ray burst

A. J. Castro-Tirado, J. M. Castro Cerón, J. Gorosabel +21

We imaged the error box of a gamma-ray burst of the short (0.5 s), hard type (GRB 000313), with the BOOTES-1 experiment in southern Spain, starting 4 min after the gamma-ray event,…

astro-ph2001★ 6 cited

The bright optical afterglow of the long GRB 001007

J. M. Castro Cerón, A. J. Castro-Tirado, J. Gorosabel +35

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 fo…

astro-ph2001

Follow-up observations from observatories based in Spain

Javier Gorosabel, Alberto J. Castro-Tirado, Jochen Greiner +4

We present a review of the follow-up observations carried out from observatories located in Spain; Calar-Alto, Izanha and Roque de Los Muchachos. It summarizes the observations car…

astro-ph2001★ 54 cited

Afterglow upper limits for four short duration, hard spectrum gamma-ray bursts

K. Hurley, E. Berger, A. Castro-Tirado +21

We present interplanetary network localization, spectral, and time history information for four short-duration, hard spectrum gamma-ray bursts, GRB000607, 001025B, 001204, and 0101…

astro-ph2001★ 94 cited

The extraordinarily bright optical afterglow of GRB 991208 and its host galaxy

A. J. Castro-Tirado, V. V. Sokolov, J. Gorosabel +50

Observations of the extraordinarily bright optical afterglow (OA) of GRB 991208 started 2.1 d after the event. The flux decay constant of the OA in the R-band is -2.30 +/- 0.07 up…

astro-ph2001★ 74 cited

The optical afterglow and host galaxy of GRB000926

J. U. Fynbo, J. Gorosabel, T. H. Dall +27

We present the discovery of the Optical Transient (OT) of the long-duration gamma-ray burst GRB000926. The optical transient was detected independently with the Nordic Optical Tele…

astro-ph2000★ 56 cited

The very red afterglow of GRB 000418 - further evidence for dust extinction in a GRB host galaxy

S. Klose, B. Stecklum, N. Masetti +36

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 nea…