New Semiregular Variable Star Near The Wizard Nebula - Evolution of the Red Giant MACOMP_V1
Abstract
The red giant MaCoMP_V1 in Cepheus at coordinates RA (J2000) 22:49:05:49 and DEC (J2000) +57:52:41:6 is a semiregular variable star classified as SRS, number 2225960 in the AAVSO VSX database. Using the Fourier transform, the period P = 24.751(0.062)d was evaluated and, with the support of the ASAS-SN and ZTF surveys, a well-defined light curve was made. The analysis resulted in the fundamental physical parameters of MaCoMP_V1, such as the mass M = 4.97(0.38)M(Sun) and radius R = 40.5(6.7)R(Sun), with consistent values suggesting the characteristics of a semiregular red giant. In addition, the effective temperature Teff = 4500(135)K from the Gaia catalog and the stellar evolution based on the Schoenberg-Chandraskehar limit was estimated.
- Publication:
-
Open European Journal on Variable Stars
- Pub Date:
- May 2022
- DOI:
- 10.5817/OEJV2022-0229
- arXiv:
- arXiv:2206.04926
- Bibcode:
- 2022OEJV..229....1C
- Keywords:
-
- variable stars;
- semiregular variables;
- red giant;
- photometry;
- data analysis;
- Astrophysics - Solar and Stellar Astrophysics;
- Astrophysics - Astrophysics of Galaxies
- E-Print:
- Open European Journal on Variable stars (2022), Vol. 229, p. 1-8