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Hot GRB-selected Submillimeter Galaxies
M. J. Michałowski, J. Hjorth, J. M. Castro Cerón +1
Using detailed spectral energy distribution fits we present evidence that submillimeter- and radio-bright gamma-ray burst host galaxies are hotter counterparts to submillimeter gal…
The nature of GRB-selected submillimeter galaxies: hot and young
M. J. Michałowski, J. Hjorth, J. M. Castro Cerón +1
We present detailed fits of the spectral energy distributions (SEDs) of four submillimeter (submm) galaxies selected by the presence of a gamma-ray burst (GRB) event (GRBs 980703,…
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…
Very different X-ray to optical column density ratios in gamma-ray burst afterglows: ionisation in GRB environments
D. Watson, J. Hjorth, J. P. U. Fynbo +4
We compare the HI column densities from Ly-alpha absorption to the metal column densities from X-ray absorption in gamma-ray burst (GRB) afterglows. Eight bursts of seventeen enter…
Spatially resolved properties of the GRB 060505 host: implications for the nature of the progenitor
Christina C. Thoene, Johan P. U. Fynbo, Goeran Oestlin +12
GRB 060505 was the first well-observed nearby possible long-duration GRB that had no associated supernova. Here we present spatially resolved spectra of the host galaxy of GRB 0605…
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…