The Host Galaxy of the Reshift 4.5 Gamma-Ray Burst GRB000131

Details The Host Galaxy of the Reshift 4.5 Gamma-Ray Burst GRB000131 The Host Galaxy of the Reshift 4.5 Gamma-Ray Burst GRB000131

Apr 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aps..aprn17050f&link_type=abstract

American Physical Society, April Meeting, Jointly Sponsored with the High Energy Astrophysics Division (HEAD) of the American As

Astronomy and Astrophysics

Astrophysics

Scientific paper

We present late-time Hubble Space Telescope observations of the region surrounding the z≈ 4.5 gamma-ray burst GRB000131, the highest-redshift GRB known. By making an astrometric tie of Very Large Telescope images of the fading afterglow to our late-time HST images we are able to localize the GRB to better than one arcsec precision. In the near vicinity of this localization (<3 arcsec), we detect extended emission in the F616W ( ~R) and F805W ( ~I) filters. The brightness, color, and morphology of this emission are consistent with its identification as an irregular galaxy at z=4.5, and we therefore identify it as the host galaxy of GRB000131. We present a summary of the host galaxy properties deduced from this data, and speculate on the unique prospects of future GRB follow-up efforts to contribute to our understanding of galaxy and star formation processes at high redshift.

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