Other
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aipc.1279..279t&link_type=abstract
DECIPHERING THE ANCIENT UNIVERSE WITH GAMMA-RAY BURSTS. AIP Conference Proceedings, Volume 1279, pp. 279-282 (2010).
Other
Gamma-Ray Sources (Astronomical), Redshift, Galaxies, Brightness, Gamma-Ray Sources, Gamma-Ray Bursts, Distances, Redshifts, Radial Velocities, Spatial Distribution Of Galaxies, Galaxy Clusters, Magnitudes And Colors, Luminosities
Scientific paper
GRB 090426 at a redshift of z = 2.609 had been classified as a ``short'' but with an exceptionally soft spectrum, placing it outside the normal short and long populations in the T90 vs. HR plot. It was the first short burst where an optical spectrum had been obtained. In contrast to other GRB afterglow spectra it shows exceptional properties indicating an almost fully ionized medium. The host galaxy is a complex of two large star-forming galaxies that are likely in the process of merging. Photoionization modeling of the metal column densities gives a distance of the absorbing material to the GRB of only 80pc, closer to what has been usually derived for the predominantly neutral material in other GRB spectra. The GRB thus likely exploded in an isolated star-forming region possibly created by the tidal interaction of the two galaxies.
Campana Sergio
Christensen Lars Lindberg
de Ugarte Postigo Antonio
Fynbo Johan P. U.
Lazzati Davide
No associations
LandOfFree
GRB 090426-an oddball event in the outskirts of two interacting galaxies does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with GRB 090426-an oddball event in the outskirts of two interacting galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and GRB 090426-an oddball event in the outskirts of two interacting galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1403176