Article in PDF |
"Peremennye Zvezdy", Prilozhenie, vol. 11, N 17 (2011) |
ISSN 2221–0474 |
Received: 29.01.2011; accepted: 22.04.2011
(E-mail for contact: khruslov@bk.ru)
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Remarks: | |||||||||
TYC 5978 00472 1 = ASAS 072641-2208.9 is listed in the ASAS-3 catalog of variable
stars
(Pojmanski 2002) as a "miscellaneous" variable star with the period of 0.249024
days.
I re-analyzed the ASAS-3 observations (additionally taking into account the sparse NSVS data (Wozniak et al. 2004)) using the period-search software developed by Dr. V.P. Goranskij for Windows environment. The star's brightness variations were found to be a superposition of two periodic components: a long-period (presumably pulsational) one and a much-shorter-period one, resembling, by its light curve shape, ellipsoidal variations of a binary system with a hint to a narrow eclipse at the primary minimum. The following light elements were determined:
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