CCD Photometry, Period Analysis, Light Curve Deconvolution, and Evolutionary Status of the High Amplitude δ Scuti Variable Star GSC 4606-1045 (Vend 33)
Volume 53 number 1 (2025)
- W. Allen Gilchrist, Jr.
- 6410 Meadovista, Drive, Apt. 607, Corpus Christi, TX 78414; gilchrist.allen@ymail.com
Abstract
Precisely-timed CCD-derived multi-color (B, V, Rc, and Ic) photometric magnitudes are presented for the high amplitude δ Scuti (HADS) pulsating variable star GSC 4606-1045 (Vend 33). These data provided 32 times of maxima (ToMx) that were used to determine a new linear ephemeris. The updated period along with V magnitudes and B–V color indices were used to produce estimates of luminosity, effective temperature, and other stellar parameters. Discrete Fourier deconvolution of the data revealed a fundamental oscillation and one significant harmonic. Comparison of the effective temperature and luminosity with PARSEC stellar models gave some insight into the evolutionary status of the star. Additional V-band data from the ASAS-SN survey provided a comparison to the new measurements.