activity
20002009
most citedNo supernovae associated with two long-duration gamma ray bursts

447 citations · 4.1k across the 42 of their papers we have counts for

collaborators

42 papers

astro-ph.CO2009★ 368 cited

Low-Resolution Spectroscopy of Gamma-ray Burst Optical Afterglows: Biases in the Swift Sample and Characterization of the Absorbers

J. P. U. Fynbo, P. Jakobsson, J. X. Prochaska +39

(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 equ…

astro-ph2008★ 52 cited

Photometry and spectroscopy of GRB 060526: A detailed study of the afterglow and host galaxy of a z=3.2 gamma-ray burst

C. C. Thöne, D. A. Kann, G. Jóhannesson +58

Aims: With this paper we want to investigate the highly variable afterglow light curve and environment of gamma-ray burst (GRB) 060526 at . Methods: We present one of the…

astro-ph2007★ 354 cited

The Afterglows of Swift-era Gamma-Ray Bursts. I. Comparing pre-Swift and Swift era Long/Soft (Type II) GRB Optical Afterglows

D. A. Kann, S. Klose, B. Zhang +73

We have gathered optical photometry data from the literature on a large sample of Swift-era gamma-ray burst (GRB) afterglows including GRBs up to September 2009, for a total of 76…

astro-ph2007★ 39 cited

On the nature of the short duration GRB 050906

A. J. Levan, N. R. Tanvir, P. Jakobsson +12

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…

astro-ph2007★ 50 cited

The nature of the X-Ray Flash of August 24 2005

J. Sollerman, J. P. U. Fynbo, J. Gorosabel +23

We present comprehensive photometric R-band observations of the fading optical afterglow of the X-Ray Flash XRF050824, from 11 minutes to 104 days after the burst. The R-band light…

astro-ph2006★ 147 cited

HI column densities of z > 2 Swift gamma-ray bursts

P. Jakobsson, J. P. U. Fynbo, C. Ledoux +18

Context: Before the launch of the Swift satellite, the majority of the gamma-ray burst (GRB) afterglows for which Ly-alpha was redshifted into the observable spectrum showed eviden…