Article in PDF |
"Peremennye Zvezdy", Prilozhenie, vol. 10, N 11 (2010) |
ISSN 2221–0474 |
Received: 3.03.2010; accepted: 11.03.2010
(E-mail for contact: khruslov@bk.ru)
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Remarks: | ||||||||||||||||||||
According to ASAS-3 data, GSC 6957-00065 = ASAS 220715-2723.8, listed in the ASAS
catalog of variable stars
(Pojmański 2002), is an RRAB variable with a period of 0.424900 d.
Szczygieł et al. (2009), who
consider all the stars analyzed in their paper fundamental-mode RR~Lyrae stars,
give the period 0.4248986 d.
GSC 6957-00065 is actually an RR(B) star, and the above period values correspond to the first-overtone oscillation. The phased light curves plotted for the tabulated elements are given in the Figure. The period ratio P1/P0 = 0.7457 is typical of RR(B) variables. The fundamental-mode amplitude is much lower than that for the first overtone. Also identified is the period corresponding to the interaction frequency f0+f1. J-H = 0.253 (2MASS).
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References: | ||||||||||||||||||||
Pojmański, G., 2002, Acta Astron., 52, 397
Szczygieł, D.M., Pojmański, G., Pilecki, B., 2009, Acta Astron., 59, 137 |
Light Curve |