Zobrazeno 1 - 10
of 164
pro vyhledávání: '"Gorbachev, M."'
Publikováno v:
Journal of High Energy Astrophysics, Volume 45, March 2025, Pages 19-31
We propose a new method for investigating the evolution of the properties of the blazar brightness variability on timescales from a few hours to a few days. Its essence lies in detecting sequentially located time intervals along the entire light curv
Externí odkaz:
http://arxiv.org/abs/2411.18125
Autor:
Lyskova, N., Churazov, E., Khabibullin, I., Bikmaev, I. F., Burenin, R. A., Forman, W. R., Khamitov, I. M., Rajpurohit, K., Sunyaev, R., Jones, C., Kraft, R., Zaznobin, I., Gorbachev, M. A., Suslikov, M. V., Gumerov, R. I., Sakhibullin, N. A.
Massive clusters of galaxies are very rare in the observable Universe. Even rarer are mergers of such clusters observed close to pericenter passage. Here, we report on one such case: a massive (~ $10^{15}\,M_\odot$) and hot (kT ~ 10 keV) cluster CL02
Externí odkaz:
http://arxiv.org/abs/2409.07856
Autor:
Kolbin, A. I., Karpova, A. V., Suslikov, M. V., Bikmaev, I. F., Gilfanov, M. R., Khamitov, I. M., Shibanov, Yu. A., Zyuzin, D. A., Beskin, G. M., Plokhotnichenko, V. L., Gutaev, A. G., Karpov, S. V., Lyapsina, N. V., Medvedev, P. S., Sunyaev, R. A., Kirichenko, A. Yu., Gorbachev, M. A., Irtuganov, E. N., Gumerov, R. I., Sakhibullin, N. A., Shablovinskaya, E. S., Malygin, E. A.
SRGe J194401.8+284452 is the brightest point-like X-ray object within the position uncertainty ellipse of an unidentified $\gamma$-ray source 4FGL J1943.9+2841. We performed multi-wavelength spectral and photometric studies to determine its nature an
Externí odkaz:
http://arxiv.org/abs/2408.14136
Autor:
Khamitov, I. M., Bikmaev, I. F., Gilfanov, M. R., Sunyaev, R. A., Medvedev, P. S., Gorbachev, M. A.
Publikováno v:
Pisma v Astronomicheskiy Zhurnal, 2023, Vol 49, 6, pp. 369-398
We present a sample of SRG/eROSITA X-ray sources located in the eastern Galactic hemisphere (0
Externí odkaz:
http://arxiv.org/abs/2309.11308
Autor:
Khamitov, I. M., Bikmaev, I. F., Gilfanov, M. R., Sunyaev, R. A., Medvedev, P. S., Gorbachev, M. A., Irtuganov, E. N.
Based on a comparison of the SRG/eROSITA catalog of X-ray active stars and the Gaia catalog, a sample of 502 peculiar objects was obtained for which Gaia, on one hand, detects statistically significant values of parallax or proper motion and, on the
Externí odkaz:
http://arxiv.org/abs/2301.08010
We present photometric transit observations of the exoplanet WASP-2b using the MTM-500 telescope of the Crimean Astrophysical Observatory of RAS. A brief history of the discovery of the exoplanet WASP-2b and its main characteristics are considered. O
Externí odkaz:
http://arxiv.org/abs/1903.10897
The work described in this article is a continuation of the previously initiated research on archival spectral observations carried out in the Crimea. It covers a time interval of about 90 years and contains information about spectroscopy using vario
Externí odkaz:
http://arxiv.org/abs/1903.10633
Autor:
Gorbachev, M. A., Shlyapnikov, A. A
Based on the database of photometric observations of the CRTS project over an interval of more than 9 years, the activity of red dwarfs from the GTSh10 catalog was analyzed. The total number of analyzed objects, a list of stars with detected flares,
Externí odkaz:
http://arxiv.org/abs/1903.05920
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