Zobrazeno 1 - 8
of 8
pro vyhledávání: '"O. V. Kochina"'
Autor:
D. S. Wiebe, O. V. Kochina
Publikováno v:
Odessa Astronomical Publications, Vol 26, Iss 2, Pp 162-168 (2013)
Star formation is one of the key processes governing the evolution of the Universe. It is accompanied by significant transformations in the chemical composition and the physical state of the interstellar medium. Combining observations in infr
Externí odkaz:
https://doaj.org/article/6b566ef6aec742768d6d48b69d0da471
Publikováno v:
Astronomy Letters. 48:517-529
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fae69df7883036d229adb5de2ca5d630
https://doi.org/10.1134/s1063773722090043
https://doi.org/10.1134/s1063773722090043
Autor:
D. S. Wiebe, O. V. Kochina
Publikováno v:
Astronomy Letters. 46:379-387
We consider the evolution of the abundance of singly and doubly deuterated isotopologues of water and methanol in a typical protostellar cloud. The main processes determining their abundance in various regions of the cloud have been revealed. We show
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8eaf100b89a2cbca020657014149b04
https://doi.org/10.1134/s1063773720060055
https://doi.org/10.1134/s1063773720060055
Publikováno v:
Proceedings of the International Astronomical Union. 16:282-287
PRESTALINE is a package allowing a user to simulate and analyse spectra of various astrophysical objects. The package is based on the numerical models PRESTA (Kochina & Wiebe (2017)) and RADEX (van der Tak et al. (2007)). PRESTALINE provides the dire
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a9eef440c4fa5da2f62f455e60b0482
https://doi.org/10.1017/s1743921322001375
https://doi.org/10.1017/s1743921322001375
Autor:
Dmitri Wiebe, O. V. Kochina
Publikováno v:
Astronomy Reports. 61:103-114
The sensitivity of a number of aspects of the chemical evolution of a molecular cloud to its elemental composition is investigated. Four models are considered: one with high metallicity, for which the evolution proceeds exclusively in the gas phase,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2950bc9b09f73bcdcf25d3d1e6faaf08
https://doi.org/10.1134/s1063772917020019
https://doi.org/10.1134/s1063772917020019
Autor:
Dmitri Wiebe, O. V. Kochina
Publikováno v:
Astronomy Reports. 59:762-771
The extent to which the physical conditions (variations of the distributions of temperature and density) in protostellar objects affect the chemical evolution in the process of star formation is studied. A set of models with various complexity descri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c56b3cdde606467a121aa338b1abb096
https://doi.org/10.1134/s1063772915080041
https://doi.org/10.1134/s1063772915080041
Autor:
D. S. Wiebe, O. V. Kochina
Publikováno v:
Astronomy Reports. 58:228-239
Results of modeling the chemical evolution of protostellar objects are presented. The models take into account the existence of different dust populations with distinct grain sizes, total mass fractions, and temperatures. In addition to ”classical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::340eab27e3d90300cb9f9a22af4d6bcb
https://doi.org/10.1134/s1063772914040064
https://doi.org/10.1134/s1063772914040064
Publikováno v:
Astronomy Reports
The results of molecular composition modeling are presented for the well studied low-mass star-forming region TMC-1 and the massive star-forming region DR21(OH), which is poorly studied from a chemical point of view. The column densities of dozens of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::804614d4284461bf4aa2864d49130bb6
http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=84887379456
http://www.scopus.com/inward/record.url?partnerID=8YFLogxK&scp=84887379456
