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Is EQ Boo a Quadruple System?

Published online by Cambridge University Press:  23 April 2012

Igor M. Volkov ,
Drahomír Chochol ,
Natalia S. Volkova  and
Igor V. Nikolenko
Igor M. Volkov
Affiliation:
Sternberg Astronomical Institute, Moscow University, Universitetsky Ave., 13, Moscow 119992, Russia email: imv@sai.msu.ru
Drahomír Chochol
Affiliation:
Astronomical Institute of the Slovak Academy of Sciences, 059 60 Tatranská Lomnica, Slovakia email: chochol@ta3.sk
Natalia S. Volkova
Affiliation:
Sternberg Astronomical Institute, Moscow University, Universitetsky Ave., 13, Moscow 119992, Russia email: imv@sai.msu.ru
Igor V. Nikolenko
Affiliation:
Scientific Research Institute, “Crimean Astrophysical Observatory,” Community Blue Bay, Shajn str., 1, Ukraine
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Abstract

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We present the precise multicolour photometry of the eclipsing variable EQ Boo (P = 5d.43, V = 8m.8), which is component “A” of the visual double star ADS 9422 (F7 V+G0 V, ρ = 1.3”, Δmag = 0.7). From the analysis of these data, we can propose the existence of the fourth component with a late spectral type.

Keywords

eclipsing binarymultiple systemstellar evolution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 7 , Symposium S282: From Interacting Binaries to Exoplanets: Essential Modeling Tools , July 2011 , pp. 89 - 90
Copyright
Copyright © International Astronomical Union 2012

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