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Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 2011, Volume 153, Book 2, Pages 74–81 (Mi uzku927)  

Analysis of temperature structure of spotted stars

A. I. Kolbina, N. A. Sakhibullinb

a Institute of Physics, Kazan (Volga region) Federal University
b Institute of Physics, Kazan (Volga region) Federal University

Abstract: In this work, we consider applications of MLI (Matrix Light-Curve Inversion) technique for surface reconstruction of spotted stars. Unlike the traditional method of light-curve modeling, this method doesn't need any assumptions about the number of spots and their shapes. For realization and testing of MLI technique, we have developed a computer program that makes it possible to create models of spotted stellar surfaces, to draw noisy synthetic light curves in different photometric systems, and to reconstruct surfaces based on the obtained and observed light curves. This technique has been tested for various models of spotted surfaces. We have been applied this method for surface reconstruction of the secondary component of DE CVn system. Photometric data were obtained by RTT-150 telescope (TUBITAC observatory) in 2009. Intensity and temperature maps of the surface of the secondary component of DE CVn system have been deduced. Two large regions of spottedness have been found.

Keywords: spotted stars, MLI technique, DE CVn system.

Full text: PDF file (423 kB)
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UDC: 524.31
Received: 24.01.2011

Citation: A. I. Kolbin, N. A. Sakhibullin, “Analysis of temperature structure of spotted stars”, Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki, 153, no. 2, Kazan University, Kazan, 2011, 74–81

Citation in format AMSBIB
\Bibitem{KolSak11}
\by A.~I.~Kolbin, N.~A.~Sakhibullin
\paper Analysis of temperature structure of spotted stars
\serial Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki
\yr 2011
\vol 153
\issue 2
\pages 74--81
\publ Kazan University
\publaddr Kazan
\mathnet{http://mi.mathnet.ru/uzku927}


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