75 citations · 744 across the 28 of their papers we have counts for
8 papers · 1 filter
Influence of radiative pumping on the HD rotational level populations in diffuse molecular clouds of the interstellar medium
V. V. Klimenko, A. V. Ivanchik
We present a theoretical calculation of the influence of ultraviolet radiative pumping on the excitation of the rotational levels of the ground vibrational state for HD molecules u…
X-shooter observations of strong H-bearing DLAs at high redshift
S. A. Balashev, V. V. Klimenko, P. Noterdaeme +6
We present results from spectroscopic observations with X-shooter at the Very Large Telescope of seven H2-bearing DLAs at high redshifts (z). These DLAs were…
CO-dark molecular gas at high redshift: very large H content and high pressure in a low metallicity damped Lyman-alpha system
S. A. Balashev, P. Noterdaeme, H. Rahmani +6
We present a detailed analysis of a H-rich, extremely strong intervening Damped Ly- Absorption system (DLA) at towards the quasar J0843+0221, observe…
Estimation of physical conditions in the cold phase of the ISM in the sub-DLA system at z = 2.06 in the spectrum of the quasar J2123-0050
V. V. Klimenko, S. A. Balashev, A. V. Ivanchik +1
An independent analysis of the molecular hydrogen absorption system at z = 2.059 in the spectrum of the quasar J2123-0050 is presented. The H_2 system consists of two components (A…
The primordial deuterium abundance: subDLA system at towards the QSO J1444+2919
S. A. Balashev, E. O. Zavarygin, A. V. Ivanchik +2
We report a new detection of neutral deuterium in the sub Damped Lyman Alpha system with low metallicity [O/H]\,=\, at towards QSO~J\,14442…
Effect of a partial coverage of quasar broad-line regions by intervening H-bearing clouds
Dmitrii Ofengeim, Sergei Balashev, Aleksandr Ivanchik +2
We consider the effect of a partial coverage of quasar broad-line regions (QSO BLRs) by intervening H-bearing clouds when a part of quasar (QSO) radiation passes by a cloud not…