53 citations · 165 across the 4 of their papers we have counts for
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Molecular hydrogen absorption systems in Sloan Digital Sky Survey
S. A. Balashev, V. V. Klimenko, A. V. Ivanchik +3
We present a systematic search for molecular hydrogen absorption systems at high redshift in quasar spectra from the Sloan Digital Sky Survey (SDSS) II Data Release 7 and SDSS-III…
HD/H2 Molecular Clouds in the Early Universe: The Problem of Primordial Deuterium
S. A. Balashev, A. V. Ivanchik, D. A. Varshalovich
We have detected new HD absorption systems at high redshifts, z_abs=2.626 and z_abs=1.777, identified in the spectra of the quasars J0812+3208 and Q1331+170, respectively. Each of…
HD molecules at high redshift: The absorption system at z=2.3377 towards Q 1232+082
A. V. Ivanchik, P. Petitjean, S. A. Balashev +4
We present a detailed analysis of the H_2 and HD absorption lines detected in the Damped Lyman-alpha (DLA) system at z_abs=2.3377 towards the quasar Q1232+082. We show that this in…