CCD PHOTOMETRY AND EVOLUTIONARY STATUS OF THE PULSATING VARIABLE CSS J051053.0+071722
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Published:2020-04-01
Issue:1
Volume:56
Page:129-138
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ISSN:0185-1101
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Container-title:Revista Mexicana de Astronomía y Astrofísica
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language:
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Short-container-title:RMxAA
Affiliation:
1. Desert Blooms Observatory, USA
Abstract
Multi-color (BV I_c ) CCD-derived photometric data were acquired for CSSJ051053.0+071722, a pulsating variable classified as a high amplitude δ Scuti-type system. Analysis of precise time-series lightcurve data was accomplished using discrete Fourier transformation which revealed a mean fundamental mode (f_0 ) of oscillation at 14.5097 ±0.0001 d^−1 along with two other partial harmonics (2f_0 and 4f_0 ). No other statistically significant frequency shared by all bandpasses was resolved following successive pre-whitening of each residual signal. Except for 36 new times-of-maximum light produced from the present study, no other values were found in the literature; therefore, potential secular period changes could not be evaluated. The evolutionary status, age and physical nature of CSS J051053.0+071722 were investigated using the PAdova & TRieste Stellar Evolution Code for generating stellar tracks and isochrones.
Publisher
Universidad Nacional Autonoma de Mexico
Subject
Space and Planetary Science,Astronomy and Astrophysics
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