* Astronomy

Title: Short-period low-mass binary system CC Com revisited
Authors: O. Kose, B. Kalomeni, V. Keskin, B.Ulas, K. Yakut

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_c = 0.717(14) solar masses, M_h = 0.378(8) solar masses, R_c = 0.708(12) solar radii, R_h = 0.530(10) solar radii, L_c = 0.138(12) solar luminance, L_h = 0.085(7) solar luminance, 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 x 10^{-8} solar masses yr^{-1}. Finally, we discuss the possible evolutionary scenario of CC Com.

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