Zobrazeno 1 - 10
of 24
pro vyhledávání: '"V. V. Bruevich"'
Autor:
E. Koptelova, W. P. Chen, T. Chiueh, B. P. Artamonov, V. L. Oknyanskij, S. N. Nuritdinov, O. Burkhonov, T. Akhunov, V. V. Bruevich, O. V. Ezhkova, A. S. Gusev, A. V. Sergeyev, Sh. A. Ehgamberdiev, M. A. Ibragimov
Publikováno v:
Odessa Astronomical Publications, Vol 25, Iss 2, Pp 169-171 (2012)
We study brightness variations in the double lensed quasar UM673 (Q0142-100) with the aim of measuring the time delay between its two images. Methods.. We analyzed the V, R and I-band light curves of the A and B images of UM673, which cover ten obser
Externí odkaz:
https://doaj.org/article/5540beda74264d6685ae69c60d87bbad
Autor:
E. A. Bruevich, V. V. Bruevich
Publikováno v:
Astrophysics. 62:377-386
Data from satellite observations of fluxes in Lyman series lines and their relative variations, both during the 24-th cycle and in individual class M and X flares, are analyzed. The decrement D1 (D1 = F(Lα)/F(Lβ)) has varied over the 24-th activity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d66b9659c8b5e71bee7235a001928ef
https://doi.org/10.1007/s10511-019-09589-0
https://doi.org/10.1007/s10511-019-09589-0
Autor:
E. A. Bruevich, V. V. Bruevich
Publikováno v:
Astrophysics. 61:241-253
Solar flare activity in cycle 24 is studied. Satellite observations of x-ray fluxes from GOES-15 and UV emission lines from the SDO/EVE experiment are used. The most powerful flares of cycle 24 in classes X9.3 and X8.2 in September 2017 are compared
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88bb86470cf9dab6c157f99606c1c6f7
https://doi.org/10.1007/s10511-018-9531-z
https://doi.org/10.1007/s10511-018-9531-z
Publikováno v:
Moscow University Physics Bulletin. 73:216-222
The solar activity in the current, that is, the 24-th, sunspot cycle is analyzed. Cyclic variations in the sunspot number (SSN) and radiation fluxes in various spectral ranges have been estimated in comparison with the general level of the solar radi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::621822a91c24d72cbeca2fffc03191fc
https://doi.org/10.3103/s0027134918020030
https://doi.org/10.3103/s0027134918020030
Autor:
N. V. Metlova, Sh. A. Egamberdiev, B. P. Artamonov, V. V. Bruevich, L. S. Ugolkova, O. A. Burkhonov, E. V. Shimanovskaya
Publikováno v:
Astronomy Letters. 43:233-240
We present results of multicolor UBVRI observations of the type 1 Seyfert galaxy (SyG 1) NGC 7469 carried out at the 1.5-meter telescope of the Maidanak Observatory (Uzbekistan) in 2008-2014. Analysis of the light curves indicates the presence of ano
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::222e8c3f13f343ebb4ba68b2465cf3fd
https://doi.org/10.1134/s1063773717040089
https://doi.org/10.1134/s1063773717040089
Autor:
O. A. Burkhonov, Alexander S. Gusev, Olivier Wertz, T. Akhunov, Cédric Delvaux, B. P. Artamonov, Alexey V. Sergeyev, V. N. Dudinov, R. Gaisin, S. N. Nuritdinov, Andrii Elyiv, O. V. Ezhkova, A. P. Zheleznyak, V. V. Bruevich, Jean Surdej
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 465:3607-3621
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc946a06e2916a6fa5de46a13a12ef61
https://doi.org/10.1093/mnras/stw2951
https://doi.org/10.1093/mnras/stw2951
Publikováno v:
Astrophysics. 59:101-113
The atmospheric activity of the sun and of stars of the solar-type is analyzed using observations from the HK-project at the Mount Wilson Observatory, California, and the Carnegie Planet Search Program at the Keck and Lick Observatories, as well as f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e04f68614444d4afee425eccfb22bd6c
https://doi.org/10.1007/s10511-016-9420-2
https://doi.org/10.1007/s10511-016-9420-2
Autor:
V. V. Bruevich, E. V. Shimanovskaya, S. A. Guslyakova, V. Lang, Yu. N. Efremov, F. Sakhibov, A. E. Piskunov, N. V. Kharchenko, O. V. Ezhkova, Alexander S. Gusev
Publikováno v:
Monthly Notices of the Royal Astronomical Society. 457:3334-3355
We present a study of complexes of young massive star clusters (YMCs), embedded in extragalactic giant HII regions, based on the coupling of spectroscopic with photometric and spectrophotometric observations of about 100 star forming regions in seven
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2399dff8f8fd7b45bccc3a1f8442c0ce
https://doi.org/10.1093/mnras/stw212
https://doi.org/10.1093/mnras/stw212
Autor:
Sh. A. Ehgamberdiev, Vyacheslav N. Shalyapin, B. P. Artamonov, O. A. Burkhonov, Alexey V. Sergeyev, A. P. Zheleznyak, T. Akhunov, Luis J. Goicoechea, V. V. Bruevich, E. V. Shimanovskaya, I. M. Asfandiyarov
Publikováno v:
Astronomy & Astrophysics. 637:A89
Quasar microlensing offers a unique opportunity to resolve tiny sources in distant active galactic nuclei and study compact object populations in lensing galaxies. We therefore searched for microlensing-induced variability of the gravitationally lens
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8c3201f2ebff63aa3df81a29c86620ec
https://doi.org/10.1051/0004-6361/202037902
https://doi.org/10.1051/0004-6361/202037902
Autor:
V. V. Bruevich, E. A. Bruevich
Publikováno v:
Research in Astronomy and Astrophysics. 19:090
We analyze long-term variations of several solar activity indices (AIs) that have been measured over the last 40 years. With this goal, we study the AIs that characterize the fluxes from different areas in the solar atmosphere. Our consideration of m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fee7db10b510882e6c487417ba47c930
https://doi.org/10.1088/1674-4527/19/7/90
https://doi.org/10.1088/1674-4527/19/7/90