Monitoring active stars 29 Dra, 12 Cam and colour excess of II Peg

We present the BV light curves analysis of late-type, long-period stars 29 Dra, 12 Cam for the season 2005/2006, and shorter-period star II Peg for the same season. High latitude spots (alternatively spot configuration) cooler than surrounding photosphere were able to explain the light curves. The I...

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Bibliographic Details
Main Author: Zboril M.
Format: Article
Language:English
Published: Astronomical Observatory, Department of Astronomy, Belgrade 2007-01-01
Series:Serbian Astronomical Journal
Subjects:
Online Access:http://www.doiserbia.nb.rs/img/doi/1450-698X/2007/1450-698X0775051Z.pdf
Description
Summary:We present the BV light curves analysis of late-type, long-period stars 29 Dra, 12 Cam for the season 2005/2006, and shorter-period star II Peg for the same season. High latitude spots (alternatively spot configuration) cooler than surrounding photosphere were able to explain the light curves. The II Peg colour- index shift in H-R diagram is probably a consequence of stellar metallicity. Other associated mechanisms are briefly discussed.
ISSN:1450-698X
1820-9289