Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Aleksandr A. Boyarchuk"'
Publikováno v:
Solar System Research. 47:499-507
The “Spektr-UF” project is intended for the design and development of a large space observatory operating in the ultraviolet (UV) band of the spectrum inaccessible for survey from the surface of the Earth. The main observatory instrument is a spa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d4eedf01e757ad3fb643bdaaabbbf9e
https://doi.org/10.1134/s0038094613070034
https://doi.org/10.1134/s0038094613070034
Publikováno v:
Physics-Uspekhi. 55:115-136
The current understanding of mass exchange processes between close binary system (CBS) components is reviewed, with particular attention on the mass flow structure and accretion disk physics. Using 3D MHD calculation results, the variation of key acc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e8e8475e5b1698c1f04b439933c261c
https://doi.org/10.3367/ufne.0182.201202a.0121
https://doi.org/10.3367/ufne.0182.201202a.0121
Publikováno v:
Astronomy Reports. 53:660-674
We present the results of a comparative analysis of the atmospheric chemical abundances of red giants in several open clusters: the Hyades, Collinder 350, NGC 6475, and Ruprecht 147. We determined the atmospheric parameters of all the stars and the e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7de01d5d6b90cc3af3e07905250be13f
https://doi.org/10.1134/s1063772909070087
https://doi.org/10.1134/s1063772909070087
Publikováno v:
Chinese Journal of Astronomy and Astrophysics. 6:159-163
The three-dimensional gas dynamic simulations in SU UMa-type binaries show the formation of the precessional spiral density wave in inner parts of the accretion disk that are not subjected to gas dynamic perturbations. The features of the precessiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf035fd7658978b087b548788acac532
https://doi.org/10.1088/1009-9271/6/s1/20
https://doi.org/10.1088/1009-9271/6/s1/20
Autor:
A. M. Cherepashchuk, Dmitry Bisikalo, O. A. Kuznetsov, T. S. Khruzina, Aleksandr A. Boyarchuk
Publikováno v:
Astronomy Reports. 49:79-88
We have analyzed the orbital light curve of the X-ray nova XTE J1118+480 in a “disk + hot line” model based on three-dimensional gas-dynamical computations of gas flows in interacting binary systems. As a result, we have been able to derive relia
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::81bd22c9f8633862296a60e11f09e9e4
https://doi.org/10.1134/1.1862355
https://doi.org/10.1134/1.1862355
Autor:
D G Yakovlev, A A Kaplyansky, R L Aptekar, K A Konoplev, A G Zabrodsky, D. A. Varshalovich, Lev Zelenyi, R. A. Sunyaev, Aleksandr A. Boyarchuk, Robert A. Suris, G S Bisnovatyi-Kogan, Andrei M. Bykov
Publikováno v:
Physics-Uspekhi. 56:1150-1152
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21da0bfe7f2d247e2d03af7dcc8d4df4
https://doi.org/10.3367/ufne.0183.201311g.1255
https://doi.org/10.3367/ufne.0183.201311g.1255
Publikováno v:
Astronomy Reports. 47:809-820
We analyze heating and cooling processes in accretion disks in binaries. For realistic parameters of the accretion disks in close binaries ( $$\dot M \simeq 10^{ - 12} - 10^7 M_ \odot /yr$$ and α⋍10−1–10−2), the gas temperature in the outer
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7577852aaeefe8275909094789742d2e
https://doi.org/10.1134/1.1618992
https://doi.org/10.1134/1.1618992
Autor:
Aleksandr A. Boyarchuk, O. A. Kuznetsov, A. M. Cherepashchuk, Dmitry Bisikalo, T. S. Khruzina
Publikováno v:
Astronomy Reports. 47:621-636
We have analyzed optical and infrared light curves of GU Mus obtained during the system's quiescent state and carried out computations for “hot-line” and “hot-spot” models. The hot-line model describes the optical variability of GU Mus better
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b0f27cdfabdde3c20fec9b4b0db7f8a
https://doi.org/10.1134/1.1601631
https://doi.org/10.1134/1.1601631
Autor:
Dmitry Bisikalo, A. M. Cherepashchuk, Aleksandr A. Boyarchuk, O. A. Kuznetsov, T. S. Khruzina
Publikováno v:
Astronomy Reports. 47:214-231
To determine the parameters of the accretion disk and shock-wave region responsible for the formation of the orbital peak in the light curve of the binary system OY Car (an SU UMa-type variable), we have analyzed its U BV R and JK light curves using
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::118bdc404b14d68402ce1ffee4f5106a
https://doi.org/10.1134/1.1562216
https://doi.org/10.1134/1.1562216
Autor:
Anatolii M. Cherepashchuk, D. A. Varshalovich, Aleksandr A. Boyarchuk, R. A. Syunyaev, Vladimir V. Kocharovsky, Vladimir I Talanov, I.E. Trümper, Evgenii A Mareev, Andrei V. Gaponov-Grekhov, Aleksandr F. Andreev, Aleksandr Grigorievich Litvak, Lev Zelenyi
Publikováno v:
Physics-Uspekhi. 54:109-111
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87c2f7465a6a2b5b5fd9980f4005baf9
https://doi.org/10.3367/ufne.0181.201101q.0117
https://doi.org/10.3367/ufne.0181.201101q.0117