In Kawahara et al. (2018) and Masuda et al. (2019), we reported the discovery of four self-lensing binaries consisting of F/G-type stars and (most likely) white dwarfs whose masses range from 0.2 to 0.6 solar masses. Here we present their updated system parameters based on new radial velocity data from the Tillinghast Reflector Echelle Spectrograph at the Fred Lawrence Whipple Observatory, and the Gaia parallaxes and spectroscopic parameters of the primary stars. We also briefly discuss the astrophysical implications of these findings.
@article{arxiv.2001.04448,
title = {Four New Self-lensing Binaries from Kepler: Radial Velocity Characterization and Astrophysical Implications},
author = {Kento Masuda and Hajime Kawahara and David W. Latham and Allyson Bieryla and Morgan MacLeod and Masanobu Kunitomo and Othman Benomar and Wako Aoki},
journal= {arXiv preprint arXiv:2001.04448},
year = {2020}
}
Comments
4 pages, 2 figures, contributed to the Proceedings of IAU Symposium No. 357, "White Dwarfs as Probes of Fundamental Physics and Tracers of Planetary, Stellar, and Galactic Evolution," held in Hilo, HI, 21-25 October 2019