Zobrazeno 1 - 10
of 18
pro vyhledávání: '"I A Verlyuk"'
Publikováno v:
Вісник Астрономічної школи, Vol 16, Iss 1, Pp 8-15 (2020)
This paper presents theoretical developments of some issues in the physics of space intrusions. We report the discovery of a new effect – variations in brightness and “wobbling” in the meteor trail. The frequency of the variations of brightness
Externí odkaz:
https://doaj.org/article/7b1a45c4021e47d691a31dbfc1c5900d
Publikováno v:
Вісник Астрономічної школи, Vol 16, Iss 1, Pp 8-15 (2020)
This paper presents theoretical developments of some issues in the physics of space intrusions. We report the discovery of a new effect – variations in brightness and “wobbling” in the meteor trail. The frequency of the variations of brightness
Autor:
I. A. Verlyuk
Publikováno v:
Odessa Astronomical Publications, Vol 29, Iss 0, Pp 103-104 (2016)
Spectral monitoring of the flare star YZ CMi (U = 12.9, B = 12.7, V = 11.1) was carried out on the Zeiss-600 telescope at the Peak Terskol Observatory. We used a low resolution grating spectrograph with spectral resolution of ~ 100 Å and time resolu
Externí odkaz:
https://doaj.org/article/fe7cdd46a2184b358fbfa337b1dc376f
Autor:
A. V. Bondar, O. A. Svyatogorov, V. N. Petukhov, B. E. Zhilyaev, I. A. Verlyuk, S. M. Pokhvala, Yu. M. Ivashchenko, V. M. Reshetnyk, M. V. Andreev
Publikováno v:
Kinematics and Physics of Celestial Bodies. 31:267-275
We report on the detection of rapid variability in subsecond mode in the Balmer lines of hydrogen, lines Ca II H,K, and b Mg I triplet in chromospherically active stars 61 Cyg A, B. The spectral observations of 61 Cyg A, B were performed with MMCS sp
Autor:
I. A. Verlyuk, Yu. G. Kopylova, M. V. Andreev, Alexander V. Stepanov, A. V. Sergeev, M. N. Lovkaya, Yu. T. Tsap, B. E. Zhilyaev, R. E. Gershberg, K. O. Stetsenko
Publikováno v:
Kinematics and Physics of Celestial Bodies. 27:154-159
One of the most powerful and long-lived flares on the active red dwarf YZ CMi is considered. The flare was observed in the U band at the Terskol Peak Observatory on February 9, 2008. During the formation of the flare over the course of 30 seconds, th
Autor:
R. E. Gershberg, Ya. O. Romanyuk, O. A. Svyatogorov, M. N. Lovkaya, M. V. Andreev, A. V. Sergeev, Renada Konstantinova-Antova, A. P. Antov, B. E. Zhilyaev, S. Avgoloupis, John H. Seiradakis, R. Bogdanovski, B. Kaminsky, Michael E. Contadakis, I. A. Verlyuk
Publikováno v:
Astronomy & Astrophysics. 465:235-240
Aims. We report results of a quantitative colorimetric UBVRI analysis of two flare events on the red dwarf EV Lac. The photometric data were obtained in September 2004, during the multi-site synchronous monitoring from the four observatories in Ukrai
Autor:
B. E. Zhilyaev, John H. Seiradakis, S. Avgoloupis, Renada Konstantinova-Antova, I. A. Verlyuk, O. A. Svyatogorov, Michael E. Contadakis, A. P. Antov, Ya. O. Romaniuk
Publikováno v:
Astronomische Nachrichten. 326:38-42
V390 Aur is classified as a G8 spectral class active single giant by Fekel and Marshall (1991). Multi-site cooperative high-speed photoelectric monitoring was carried out for it in the period 1998-2003 as part of a program developed in Bulgaria recen
Autor:
I. A. Verlyuk, D. N. Shakhovskoy, V. E. Chalenko, Ya. O. Romanyuk, O. A. Svyatogorov, I. Y. Alekseev, A. P. Antov, Renada Konstantinova-Antova, A. V. Sergeev, Rumen Bachev, John H. Seiradakis, B. E. Zhilyaev, S. Avgoloupis, Viktor Khalack, Michael E. Contadakis
Publikováno v:
Astronomische Nachrichten. 325:427-432
A program of Many-sites Multi Channel simultaneous observations of flare stars by a network of telescops was initiated in 1998. The purpose of this program is to investigate the fine structure of the flares light-curve in UBVRI, depressing atmospheri