An Extreme-mass Ratio, Short-period Eclipsing Binary Consisting of a B Dwarf Primary and a Pre-main Sequence M Star Companion Discovered by KELT

Daniel J. Stevens, George Zhou, Marshall C. Johnson +16

We present the discovery of \thisstar\ (HD 58730), a very low mass ratio ($q\equiv M_2/M_1\approx 0.07$) eclipsing binary (EB) identified by the Kilodegree Extremely Little Teles…