| Article in PDF |
"Peremennye Zvezdy", Prilozhenie, vol. 7, N 7 (2007) |
GSC 3514-00405, a New Double-Mode RR Lyrae Variable Star
A. V. Khruslov
Russia, Tula
| ISSN 2221–0474 |
Received: 20.02.2007; accepted: 14.03.2007
(E-mail for contact: khruslov@bk.ru)
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Remarks: |
| According to ROTSE-I data (Wozniak et al., 2004), GSC 3514-00405 is a double-mode
RR Lyrae star.
The phased light curves for the following elements:
JD(max) = 2451408.71 + 0.5539 x E (fundamental mode) and JD(max) = 2451408.71 + 0.4133 x E (first overtone mode), are given in the Figure. The period ratio P1/P0=0.746 is typical of RR(B) stars. The amplitude of the first overtone mode exceeds that of the fundamental mode. The ROTSE data with photometric correction flags (usually rejected) were kept for the analysis. In the case of GSC 3514-00405, the use of these data considerably increases the number of available observations without deteriorating quality and allows us to determine the period more accurately. NSVS observations were analyzed using the period-search software developed by Dr. V.P. Goranskij for Windows environment. The coordinates are from the 2MASS catalog. |
| References: |
| Wozniak, P.R., Vestrand, W.T., Akerlof, C.W. et al., 2004, Astron. J., 127, 2436 |
Light Curve
The phased light curves. Top panels: NSVS data folded with the fundamental-mode and the first overtone periods. Bottom panels: the same curves after prewhitening the other oscillation. Small dots are the NSVS data with err. > 0.1 mag. These observations were removed from the bottom curves. Finding Chart 
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