Four new self-lensing binaries from Kepler: Radial velocity characterization and astrophysical implications. Issue Volume 15:Issue S357(2019) (October 2019)

• Record Type: Journal Article
• Authors: Masuda, Kento; Kawahara, Hajime; Latham, David W.; Bieryla, Allyson; MacLeod, Morgan; Kunitomo, Masanobu; Benomar, Othman; Aoki, Wako
• Editors: Barstow, Martin A.; Kleinman, Scot J.; Provencal, Judith L.; Ferrario, Lilia
• Is Part Of: Proceedings of the International Astronomical Union. Volume 15:Issue S357(2019)
• Page Start: 215
• Page End: 219
• Publication Date: 2019-10
• Subjects: binaries: eclipsing, -- blue stragglers, -- gravitational lensing, -- techniques: radial velocities, -- white dwarfs; Astronomy -- Congresses; Astronomy -- Periodicals; 520
• DOI: 10.1017/S1743921320000915
• Languages: English
• ISSNs: 1743-9213

Abstract

Abstarct: 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.