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arXiv · 2003.06704

New CCD Photometric Investigation of High Amplitude Delta Scuti Star V2455 Cyg

S. Ostadnezhad·Gh. Forozani·M. Ghanaatian
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Abstract

New V-band CCD observations of variable star V2455 Cyg were performed during two nights in September 2017. According to all times of maximum light and new maxima, the O-C curve was analyzed. The period changes of V2455 Cyg were investigated and the rate of increasing period was obtained to be(1/p* dp/dt) = 1.99 *10^(-7) yr^(-1). Frequency analysis indicated that V2455 Cyg pulsates with the radial p-mode and the fundamental frequency is 10.61574 d^(-1). Physical parameters of V2455 Cyg at mean temperature, were determined (e.g, R = 2.52 R(sun) and M = 1.92 M(sun)). The position of this star in H-R diagram confirms that V2455 Cyg is a high amplitude Delta Scuti star.

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S. Ostadnezhad, Gh. Forozani, M. Ghanaatian. 2020-03-14. New CCD Photometric Investigation of High Amplitude Delta Scuti Star V2455 Cyg. https://doi.org/10.1088/1674-4527/20/7/105

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