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Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 2011, Volume 153, Book 2, Pages 136–140 (Mi uzku937)  

INTEGRAL X-ray source IGR 21343+4738: spectral and photometric variability research of the optical component

I. F. Bikmaev, E. A. Nikolaeva

Institute of Physics, Kazan (Volga region) Federal University

Abstract: The preliminary results of photometric and spectroscopic monitoring of the optical component of the hard X-ray source IGR 21343+4738 by the RTT-150 telescope are presented. For the first time, estimates of the system's orbital parameters have been obtained: the $\gamma$-velocity is $-70$ km/s, the semi-amplitude of radial velocity curve is $K=10$ km/s, and the system's orbital period is $40$ or $80$ days. A preliminary analysis of photometric variability on different time scales (hours, days, months, and years) is completed.

Keywords: Be-stars, X-ray sources, IGR 21343+4738.

Full text: PDF file (319 kB)
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UDC: 524.38
Received: 16.02.2011

Citation: I. F. Bikmaev, E. A. Nikolaeva, “INTEGRAL X-ray source IGR 21343+4738: spectral and photometric variability research of the optical component”, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 153, no. 2, Kazan University, Kazan, 2011, 136–140

Citation in format AMSBIB
\Bibitem{BikNik11}
\by I.~F.~Bikmaev, E.~A.~Nikolaeva
\paper INTEGRAL X-ray source IGR 21343+4738: spectral and photometric variability research of the optical component
\serial Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
\yr 2011
\vol 153
\issue 2
\pages 136--140
\publ Kazan University
\publaddr Kazan
\mathnet{http://mi.mathnet.ru/uzku937}


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