activity
20112023
most citedCO-dark molecular gas at high redshift: very large H content and high pressure in a low metallicity damped Lyman-alpha system

70 citations · 322 across the 14 of their papers we have counts for

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9 papers · 1 filter

astro-ph.GA2023★ 1 cited

Cold diffuse interstellar medium of Magellanic Clouds: II. Physical conditions from excitation of CI and H

D. N. Kosenko, S. A. Balashev, V. V. Klimenko

We present a comprehensive study of the excitation of CI fine-structure levels along 57 sight lines in the Large and Small Magellanic Clouds. The sight lines were selected by the d…

astro-ph.GA2021

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…

astro-ph.GA2020★ 15 cited

Physical conditions in diffuse interstellar medium of local and high redshift galaxies: measurements based on excitation of H rotational and CI fine-structure levels

V. V. Klimenko, S. A. Balashev

We present results of analysis of physical conditions (number density, intensity of UV field, kinetic temperature) in the cold H-bearing interstellar medium of local and high r…

astro-ph.GA2019★ 44 cited

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…

astro-ph.GA2017★ 70 cited

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…

astro-ph.GA2016★ 12 cited

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…

astro-ph.GA2015★ 4 cited

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…

astro-ph.GA2015★ 22 cited

Partial covering of emission regions of Q 0528-250 by intervening H clouds

V. V. Klimenko, S. A. Balashev, A. V. Ivanchik +5

We present an analysis of the molecular hydrogen absorption system at z = 2.811 in the spectrum of the blazar Q0528-250. We demonstrate that the molecular cloud does no…

astro-ph.GA2015★ 26 cited

Neutral chlorine and molecular hydrogen at high redshift

S. A. Balashev, P. Noterdaeme, V. V. Klimenko +5

Chlorine and molecular hydrogen are known to be tightly linked together in the cold phase of the local interstellar medium through rapid chemical reactions. We present here the fir…