Computer Science
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aipc.1111..503p&link_type=abstract
PROBING STELLAR POPULATIONS OUT TO THE DISTANT UNIVERSE: CEFALU 2008, Proceedings of the International Conference. AIP Conferen
Computer Science
Gamma-Ray Sources, Gamma-Ray Bursts, Supernova Remnants, Origin, Formation, Evolution, Age, And Star Formation
Scientific paper
We use high resolution spectroscopic observations of the afterglow of GRB050922C, in order to investigate the environment of gamma ray bursts (GRBs) and the interstellar matter of their host galaxies. We found that, as for most high resolution spectra of GRBs, the spectrum of the afterglow of GRB050922C is complex. The detection of lines of neutral elements like MgI and the detection of fine-structure levels of the ions FeII, SiII and CII allows us to separate components in the GRB ISM along the line of sight. GRB afterglow spectra can be used to disentangle the contribution of the different parts of the GRB host galaxy and to study their properties.
D'Elia Valerio
Fiore Fabrizio
Krongold Yair
Nicastro Fabrizio
Piranomonte Silvia
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