Zobrazeno 1 - 10
of 113
pro vyhledávání: '"Fabrika, S. N."'
Autor:
Yakovlev, O. Ya., Valeev, A. F., Valyavin, G. G., Aitov, V. N., Mitiani, G. Sh., Fatkhullin, T. A., Beskin, G. M., Tavrov, A. V., Korablev, O. I., Galazutdinov, G. A., Vlasyuk, V. V., Emelianov, E. V., Sasyuk, V. V., Perkov, A. V., Bondar, S. F., Burlakova, T. E., Fabrika, S. N., Romanyuk, I. I.
We present a catalog of 150 variable stars, including 13 stars with exoplanet candidates. 37 stars were identified as variables for the first time. As a result of a 2.5-year photometric survey of exoplanets, we have obtained and analyzed light curves
Externí odkaz:
http://arxiv.org/abs/2404.10027
Autor:
Yakovlev, O. Ya., Valeev, A. F., Valyavin, G. G., Tavrov, A. V., Aitov, V. N., Mitiani, G. Sh., Beskin, G. M., Vlasyuk, V. V., Korablev, O. I., Galazutdinov, G. A., Emelianov, E. V., Fatkhullin, T. A., Sasyuk, V. V., Perkov, A. V., Bondar, S. F., Burlakova, T. E., Fabrika, S. N., Romanyuk, I. I.
Here we present eight new candidates for exoplanets detected by the transit method at the Special Astrophysical Observatory of the Russian Academy of Sciences. Photometric observations were performed with a 50-cm robotic telescope during the second h
Externí odkaz:
http://arxiv.org/abs/2304.01076
Autor:
Yakovlev, O. Ya., Valeev, A. F., Valyavin, G. G., Tavrov, A. V., Aitov, V. N., Mitiani, G. Sh., Korablev, O. I., Galazutdinov, G. A., Beskin, G. M., Emelianov, E. V., Fatkhullin, T. A., Vlasyuk, V. V., Sasyuk, V. V., Perkov, A. V., Bondar, S., Burlakova, T. E., Fabrika, S. N., Romanyuk, I. I.
We used the 0.5-m robotic telescopes located at the Special Astrophysical Observatory of the Russian Academy of Sciences for monitoring two square degrees of the sky with the aim of detecting new exoplanets. A dimming of the visible brightness is exp
Externí odkaz:
http://arxiv.org/abs/2206.06030
Publikováno v:
Astrophysical Bulletin, 2021, V. 76, N. 1, pp. 6-38
Ultraluminous X-ray sources (ULXs) were identified as a separate class of objects in 2000 based on data from the Chandra X-Ray Observatory. These are unique objects: their X-ray luminosities exceed the Eddington limit for a typical stellar-mass black
Externí odkaz:
http://arxiv.org/abs/2105.10537
We present a new scheme of a moderate-resolution spectrograph based on a cascade of serial holographic gratings each of which produces an individual spectrum with a resolution of about 6000 and a bandwidth of 80 nm. The gratings ensure centering of e
Externí odkaz:
http://arxiv.org/abs/1701.00683
Publikováno v:
Astrophysical Bulletin; Sep2024, Vol. 79 Issue 3, p494-503, 10p
Publikováno v:
Astronomy Letters, 2013, vol. 39, N 12, pp. 826 - 843
We have detected new components in stationary emission lines of SS 433; these are the superbroad components that are low-contrast substrates with a width of 2000--2500 km s-1 in He I $\lambda4922$ and H$\beta$ and 4000--5000 km s-1 in He II $\lambda4
Externí odkaz:
http://arxiv.org/abs/1311.4077
(abridged) We present the results of studying the spectral and photometric variability of the luminous blue variable star V532 in M33. The photometric variations are traced from 1960 to 2010, spectral variations - from 1992 to 2009. The star has reve
Externí odkaz:
http://arxiv.org/abs/1105.0123
We present two new luminous blue variable (LBV) candidate stars discovered in the M33 galaxy. We identified these stars (Valeev et al. 2010) as massive star candidates at the final stages of evolution, presumably with a notable interstellar extinctio
Externí odkaz:
http://arxiv.org/abs/1009.1165
Autor:
Kholtygin, A. F., Fabrika, S. N., Drake, N. A., Bychkov, V. D., Bychkova, L. V., Chountonov, G. A., Burlakova, T. E., Valyavin, G. G.
Based on an analysis of the catalog of magnetic fields, we have investigated the statistical properties of the mean magnetic fields for OB stars. We show that the mean effective magnetic field ${\cal B}$ of a star can be used as a statistically signi
Externí odkaz:
http://arxiv.org/abs/1005.3705