Zobrazeno 1 - 10
of 119
pro vyhledávání: '"Olga K. Sil'chenko"'
Autor:
Ivan Yu. Katkov, Damir Gasymov, Alexei Yu. Kniazev, Joseph D. Gelfand, Evgenii V. Rubtsov, Igor V. Chilingarian, Olga K. Sil’chenko
Publikováno v:
The Astrophysical Journal, Vol 962, Iss 1, p 27 (2024)
Stellar counterrotation in disk galaxies directly relates to the complex phenomenon of the disk mass assembly believed to be driven by external processes, such as accretion and mergers. The study of such systems makes it possible to reveal the source
Externí odkaz:
https://doaj.org/article/cab10cea792e4cfab6d0d740f08adea2
Autor:
Olga K. Sil'chenko
Publikováno v:
Astronomy Reports. 64:985-993
The origin of several rings in lenticular galaxies with no signs of ongoing or recent star formation (without emission lines and a signal in the ultraviolet spectral range) is investigated. Stellar population parameters—the average age and the magn
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d7586356f98cec7dec792b4f3350788
https://doi.org/10.1134/s1063772920120136
https://doi.org/10.1134/s1063772920120136
Although S0 galaxies are usually considered "red and dead", they often demonstrate star formation organized into ring structures. We aim to clarify the nature of this phenomenon and how it differs from star formation in spiral galaxies. We investigat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::356bb27eff4ff3a063bab3b796952920
http://arxiv.org/abs/2112.03289
http://arxiv.org/abs/2112.03289
Autor:
Olga K. Sil'chenko, Alexei Moiseev
Though S0 galaxies are usually thought to be `red and dead', they demonstrate often star formation organized in ring structures. We try to clarify the nature of this phenomenon and its difference from star formation in spiral galaxies. The luminous S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d2a6db2a6e62c9a09c98fa34eaa6a1c9
http://arxiv.org/abs/2005.09383
http://arxiv.org/abs/2005.09383
Autor:
Olga K. Sil'chenko
Publikováno v:
Proceedings of the 48-th International student's conferences "Physics of Space".
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::988d5566a1a38bcdccd5dd75e2a335e9
https://doi.org/10.15826/b978-5-7996-2935-9.03
https://doi.org/10.15826/b978-5-7996-2935-9.03
We present our results of the spectroscopic study of the lenticular galaxy NGC 4143 - an outskirt member of the Ursa Major cluster. Using the observations at the 6-m SAO RAS telescope with the SCORPIO-2 spectrograph and also the archive data of panor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36b6dc49285092e32fe2d3fdb847ce37
Autor:
Olga K. Sil'chenko
Publikováno v:
GROUND-BASED ASTRONOMY IN RUSSIA. 21ST CENTURY. Proceedings of the All-Russian Conference.
This is a historical review covering the last 30 years of the observational study of lenticular galaxies at the 6m telescope BTA of the Special Astrophysical Observatory of the Russian Academy of Sciences. The development of spectroscopic techniques
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25457da1bc087f5652bb7093b0b7f38e
https://doi.org/10.26119/978-5-6045062-0-2_2020_48
https://doi.org/10.26119/978-5-6045062-0-2_2020_48
Autor:
R. Michael Rich, V. P. Reshetnikov, Anton A. Smirnov, John Kormendy, Aleksandr V. Mosenkov, Olga K. Sil'chenko
Tilted and warped discs inside tilted dark matter haloes are predicted from numerical and semi-analytical studies. In this paper, we use deep imaging to demonstrate the likely existence of tilted outer structures in real galaxies. We consider two SB0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e18dbdfab9cc94acae2172e7f6984735
Autor:
Anastasia V. Kasparova, R. I. Uklein, Anna S. Saburova, Igor Chilingarian, Olga K. Sil'chenko, Ivan Yu. Katkov, Kirill A. Grishin
Giant low surface brightness galaxies (gLSBGs) with dynamically cold stellar discs reaching the radius of 130 kpc challenge currently considered galaxy formation mechanisms. We analyse new deep long-slit optical spectroscopic observations, archival o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d4f2e68ba03ab8705b662d76f718db25
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 483:2413-2423
Galactic stellar discs, such as that of the Milky Way, have usually a complex structure consisting of a thin and a thick component. The study of galactic disc substructures and their differences can shed light on the galaxy assembling processes and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e1c894e0a4862baca0739b3a218da1d
https://doi.org/10.1093/mnras/sty3268
https://doi.org/10.1093/mnras/sty3268