Astronomy and Astrophysics – Astrophysics
Scientific paper
2006-05-02
Astrophys.J.648:L93-L96,2006
Astronomy and Astrophysics
Astrophysics
5 pages, 3 figures. Submitted to ApJL
Scientific paper
10.1086/508061
We report on a survey for strong (rest equivalent width W_r >= 1A), intervening MgII systems along the sightlines to long-duration gamma-ray bursts (GRBs). The GRB spectra which comprise the survey have a heterogeneous mix of resolution and wavelength coverage, but we implement a strict, uniform set of search criteria to derive a well-defined statistical sample. We identify 15 strong MgII absorbers along 14 GRB sightlines (nearly every sightline exhibits at least one absorber) with spectra covering a total pathlength Delta z = 15.5 at a mean redshift
Bloom Josh S.
Chen How-Wei
Dessauges-Zavadsky Miroslava
Dupree Andrea K.
Foley Ryan J.
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