Long-term CCD Photometry and Physical Properties of the sdB+M Eclipsing System 2M 1533+3759
Long-term CCD Photometry and Physical Properties of the sdB+M Eclipsing System 2M 1533+3759
New CCD photometry of seven successive years from 2010 is presented for the HW Vir-type eclipsing binary 2M 1533+3759. Using the $VI$ light curves together with the radial-velocity data given by For et al. (2010), we determined the absolute parameters of each component to be $M_1$ = 0.442$\pm$0.012 M$_\odot$, $M_2$ …