论文标题
Kepler的四个新的自镜二进制文件:径向速度的表征和天体物理含义
Four New Self-lensing Binaries from Kepler: Radial Velocity Characterization and Astrophysical Implications
论文作者
论文摘要
在Kawahara等。 (2018)和Masuda等。 (2019年),我们报道了四种由f/g型恒星和(最有可能的)白色矮人组成的四个自灯镜头二进制文件,其质量范围从0.2到0.6太阳能块。在这里,我们根据Fred Lawrence Whipple天文台的Tillinghast反射器echelle光谱仪以及盖亚(Gaia)视差和主要恒星的光谱参数的新径向速度数据提出了更新的系统参数。我们还简要讨论了这些发现的天体物理含义。
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.