Novosibirsk State Technical University
Institute of Astronomy of the Russian Academy of Sciences
UDC 53
UDC 520
UDC 521
UDC 523
UDC 524
UDC 52-1
UDC 52-6
CSCSTI 41.00
CSCSTI 29.35
CSCSTI 29.31
CSCSTI 29.33
CSCSTI 29.27
CSCSTI 29.05
Russian Classification of Professions by Education 03.06.01
Russian Classification of Professions by Education 03.05.01
Russian Classification of Professions by Education 03.04.03
Russian Library and Bibliographic Classification 2
Russian Library and Bibliographic Classification 223
Russian Trade and Bibliographic Classification 614
Russian Trade and Bibliographic Classification 6135
BISAK SCI004000 Astronomy
BISAK SCI005000 Physics / Astrophysics
Atomic oxygen, due to its unique chemical properties, is widely used in astrophysics to study chemical composition, nucleosynthesis conditions, and the processes of formation and evolution. The recent detection of the O I 1304 Å and 7774 Å lines in the upper atmospheres of exoplanets using space and ground-based telescopes opens the possibility to evaluate its abundance in these objects and constrain important atmospheric parameters. However, the simple approximation of thermodynamic equilibrium is often inaccurate in describing the formation and absorption for many spectral lines in stars and hot exoplanets. The development of a kinetic model that takes into account detailed radiative and collisional processes in advanced atomic models is required to interpret the observations. In this work we for the first time analyze the advantages of transit absorption measurement of two oxygen lines simultaneously.
planets and satellites: atmospheres; line: profiles; atmospheric effects; methods: numerical
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