Tejos, Nicolas, Lopez, Sebastian, Prochaska, J. Xavier, Bloom, Joshua S., Chen, Hsiao-Wen, Dessauges-Zavadsky, Miroslava, ...
We revisit echelle spectra (spectral resolution R ~ 40000) of 8 Gamma-Ray Burst afterglows to obtain the incidence (dN/dz) of weak intervening Mg II systems at a mean redshift of = 1.5. We show that...
On the Incidence of C IV Absorbers Along the Sightlines to Gamma-Ray Bursts (2007)
Tejos, Nicolas, Lopez, Sebastian, Prochaska, Jason X., Chen, Hsiao-Wen, Dessauges-Zavadsky, Miroslava
We report on the statistics of strong (W_r > 0.15 A) C IV absorbers at z=1.5-3.5 toward high-redshift gamma-ray bursts (GRBs). In contrast with a recent survey for strong Mg II absorption systems at...