On the light curve variation of the Be star EM Cep
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Tarih
2007
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Astronomical Soc Pacific
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
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.
Açıklama
Workshop on Solar and Stellar Physics through Eclipses -- MAR 27-29, 2006 -- Ankara Univ, ORSEM Campus, Side, Antalya, TURKEY
Anahtar Kelimeler
Eclipsing Binary, Short-Period
Kaynak
Solar and Stellar Physics Through Eclipses
WoS Q Değeri
N/A
Scopus Q Değeri
Cilt
370
