The primordial deuterium abundance: subDLA system at zabs = 2.437 towards the QSO J 1444+2919
We report a new detection of neutral deuterium in the sub-Damped Lyman Alpha system
with low metallicity [O/H]=− 2.042±0.005 at z abs= 2.437 towards QSO J 1444+ 2919. The …
with low metallicity [O/H]=− 2.042±0.005 at z abs= 2.437 towards QSO J 1444+ 2919. The …
HD molecules at high redshift: cosmic ray ionization rate in the diffuse interstellar medium
DN Kosenko, SA Balashev… - Monthly Notices of …, 2021 - academic.oup.com
We present a systematic study of deuterated molecular hydrogen (HD) at high redshift,
detected in absorption in the spectra of quasars. We present four new identifications of HD …
detected in absorption in the spectra of quasars. We present four new identifications of HD …
Neutral carbon in diffuse interstellar medium: abundance matching with H2 for damped Lyman alpha systems at high redshifts
SA Balashev, DN Kosenko - Monthly Notices of the Royal …, 2024 - academic.oup.com
We present a study of C i/H2 relative abundance in the diffuse cold neutral medium (CNM).
Using the chemical and thermal balance model, we calculate the dependence of C i/H2 on …
Using the chemical and thermal balance model, we calculate the dependence of C i/H2 on …
Cold diffuse interstellar medium of Magellanic Clouds: I. HD molecule and cosmic-ray ionization rate
DN Kosenko, SA Balashev - Monthly Notices of the Royal …, 2023 - academic.oup.com
ABSTRACT HD molecule is one of the most abundant molecule in the Universe and due to
its sensibility to the conditions in the medium, it can be used to constrain physical …
its sensibility to the conditions in the medium, it can be used to constrain physical …
HD/H2 ratio in the diffuse interstellar medium
SA Balashev, DN Kosenko - Monthly Notices of the Royal …, 2020 - academic.oup.com
We present a semi-analytical description of the relative hydrogen deuteride (HD)/H2
abundance in the diffuse interstellar medium. We found three asymptotics of the relative …
abundance in the diffuse interstellar medium. We found three asymptotics of the relative …
Multicomponent H2 in DLA at zabs = 2.05: physical conditions through observations and numerical models
We perform detailed spectroscopic analysis and numerical modelling of an H2-bearing
damped Lyman-α absorber (DLA) at z abs= 2.05 towards the quasar FBQS J2340-0053 …
damped Lyman-α absorber (DLA) at z abs= 2.05 towards the quasar FBQS J2340-0053 …
Partial covering of the emission regions of Q 0528−250 by intervening H2 clouds
We present an analysis of the molecular hydrogen absorption system at z abs= 2.811 in the
spectrum of the blazar Q 0528− 250. We demonstrate that the molecular cloud does not …
spectrum of the blazar Q 0528− 250. We demonstrate that the molecular cloud does not …
Estimation of physical conditions in the cold phase of the interstellar medium in the sub-DLA system at z = 2.06 in the spectrum of the quasar J 2123–0050
An independent analysis of the molecular hydrogen absorption system at redshift z abs=
2.059 in the spectrum of the quasar J 2123− 0050 is presented. The H 2 system consists of …
2.059 in the spectrum of the quasar J 2123− 0050 is presented. The H 2 system consists of …
Neutral carbon in diffuse interstellar medium: abundance matching with H2 for DLAs at high redshifts
S Balashev, D Kosenko - arXiv preprint arXiv:2402.00714, 2024 - arxiv.org
We present the study of CI/H $ _2 $ relative abundance in the diffuse cold neutral medium.
Using the chemical and thermal balance model we calculated the dependence of CI/H $ _2 …
Using the chemical and thermal balance model we calculated the dependence of CI/H $ _2 …
HD/H2 absorption systems at high redshifts
DN Kosenko, SA Balashev - Journal of Physics: Conference …, 2018 - iopscience.iop.org
We present new measurements of HD/H 2 in absorption systems at redshift z∼ 2 in quasar
spectrum J 0812+ 3208 and J 2340− 0053. In J 0812+ 3208 we detect and measure column …
spectrum J 0812+ 3208 and J 2340− 0053. In J 0812+ 3208 we detect and measure column …