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New Semiregular Variable Star Near The Wizard Nebula -- Evolution of the Red Giant MACOMP_V1

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arxiv 2206.04926 v1 pith:OZKD43SX submitted 2022-06-10 astro-ph.SR astro-ph.GA

classification astro-ph.SRastro-ph.GA
keywords giantmacompsemiregularevolutionj2000starvariableaavso
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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.

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