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GRB 070714B-Discovery of the Highest Spectroscopically Confirmed Short Burst Redshift

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2008

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Abstract

Gemini Nod & Shuffle spectroscopy on the host of the short GRB 070714B shows a single emission line at 7167 Å which, based on a grizJHK photometric redshift, we conclude is the 3727 Å [O II] line. This places the host at a redshift of z=.923 exceeding the previous record for the highest spectroscopically confirmed short burst redshift of z=.546 held by GRB 051221. This dramatically moves back the time at which we know short bursts were being formed, and suggests that the present evidence for an old progenitor population may be observationally biased.

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Gamma-Ray Burst Host Galaxies, Gamma-Ray Burst Redshifts, Gamma-Ray Bursts, Short Gamma-Ray Bursts

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https://dspace-test.anu.edu.au/handle/1885/733760661

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DevOps Pure Testing

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Conference paper

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Gamma-Ray Bursts 2007 - Proceedings of the Santa Fe Conference

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DOI

10.1063/1.2943465

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