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Time-dependent optical spectroscopy of GRB 010222: Clues to the gamma-ray burst environment

Abstract:

We present sequential optical spectra of the afterglow of GRB 010222 obtained 1 day apart using the Low-Resolution Imaging Spectrometer (LRIS) and the Echellette Spectrograph and Imager (ESI) on the Keck Telescopes. Three low-ionization absorption systems are spectroscopically identified at z 1 = 1.47688, z2 = 1.15628, and z3 = 0.92747. The higher resolution ESI spectrum reveals two distinct components in the highest redshift system at z1a = 1.47590 and z1b = 1.47688. We interpret the z1b = 1...

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Publication status:
Published

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Publisher copy:
10.1086/342619

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Publisher:
Institute of Physics Publishing
Journal:
ASTROPHYSICAL JOURNAL More from this journal
Volume:
578
Issue:
2
Pages:
818-832
Publication date:
2002-10-20
DOI:
EISSN:
1538-4357
ISSN:
0004-637X
Language:
English
Keywords:
Pubs id:
pubs:195981
UUID:
uuid:174ed628-a7c2-455d-9457-20597ca733d3
Local pid:
pubs:195981
Source identifiers:
195981
Deposit date:
2012-12-19

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