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23 April 2024

» arxiv » 2001.4448

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Four New Self-lensing Binaries from Kepler: Radial Velocity Characterization and Astrophysical Implications
Kento Masuda ; Hajime Kawahara ; David W. Latham ; Allyson Bieryla ; Morgan MacLeod ; Masanobu Kunitomo ; Othman Benomar ; Wako Aoki ;
Date:	13 Jan 2020
Abstract:	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.
Source:	arXiv, 2001.4448
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