On the light curve variation of the Be star EM Cep

被引：0

作者：

Bakis, H. ^{[1
,2
]}

Bakis, V. ^{[1
,2
]}

Demircan, O. ^{[1
]}

Budding, E. ^{[1
,2
]}

Tanriver, M. ^{[3
]}

机构：

[1] Canakkale Univ, Dept Phys, TR-17020 Canakkale, Turkey

[2] Carter Observ, Wellington, New Zealand

[3] Erciyes Univ, Dept Astron & Space Sci, Kayseri, Turkey

来源：

SOLAR AND STELLAR PHYSICS THROUGH ECLIPSES | 2007年 / 370卷

关键词：

D O I：

暂无

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new UBV photometric observations obtained in the last four observing seasons and one season of spectroscopic observation for the Be star EM Cep. A possible period of 0.403 days and large light amplitude variations from one season to other were determined from the new photometric observations. A flare activity for this star has been detected on 17-18 July 2003. The brightness increase during the flare was found to be maximum in U-band. New spectroscopic observations with high-resolution spectrograph did not present a certain result due to the limited number of data. The type of variability in the light curves shows that the star could be a lambda Eri-type variable. Additional changes on the light curve do not show any periodicity. Binarity problem of the star has been also discussed.

引用

页码：225 / +

页数：2

共 24 条

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