The short-period low-mass binary system CC Com revisited

Abstract

In this study we determined precise orbital and physical parameters of the very short period low-mass contact binary system CC Com. The parameters are obtained by analysis of the new CCD data with the archival spectroscopic data. The physical parameters of the components derived as $M_{\text{c}}$ = 0.717(14) $M_{\odot }$, $M_{\text{h}}$ = 0.378(8) $M_{\odot }$, $R_{\text{c}}$ = 0.708(12) $R_{\odot }$, $R_{\text{h}}$ = 0.530(10) $R_{\odot }$, $L_{\text{c}}$ = 0.138(12) $L_{\odot }$, $L_{\text{h}}$ = 0.085(7) $L_{\odot }$, and the distance of the system is estimated as 64(4) pc. The times of minima obtained in this study and with those published before enable us to calculate the mass transfer rate between the components which is $1.6\times 10^{-8}$ M${}_{\odot }$yr${}^{-1}$. Finally, we discuss the possible evolutionary scenario of CC Com.

5 pages, 2 figures

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• Eclipsing binaries in ASAS catalog
• Radial Velocity Studies of Close Binary Stars. XII
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Cited by in corpus (12)

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• Contact binaries at the short period cut-off I. statistics and the first photometric investigations of ten totally eclipsing systems
• An optical and X-ray study of the contact binary, BH Cassiopeiae
• Comparative study of TESS photometry and radial velocities on six early K-type contact binaries with similar periods around 0.268 days
• First photometric study of ultrashort-period contact binary 1SWASP J140533.33+114639.1
• Photometric studies of two W UMa type variables in the field of distant open cluster NGC6866
• Photometric study of three ultrashort-period contact binaries
• Light curve analysis of six totally eclipsing W UMa binaries
• The first photometric analysis and period investigation of the K-type W UMa type binary system V0842 Cep
• The multiple nature of CC Com: one of the ultra-short orbital period late-type contact binary systems