Apsidal motions of 90 eccentric binary systems in the Small Magellanic Cloud

K. Hong, J. W. Lee, S. -L. Kim +2

We examined light curves of 1138 stars brighter than 18.0 mag in the $I$ band and less than a mean magnitude error of 0.1 mag in the $V$ band from the OGLE-III eclipsing binary cat…