论文标题
一个1201 S轨道周期分离二进制:第一个双氦芯白色矮人丽莎验证二进制
A 1201 s Orbital Period Detached Binary: the First Double Helium Core White Dwarf LISA Verification Binary
论文作者
论文摘要
我们报告了1201 S轨道周期二进制的发现,这是第三次最短的分离二进制已知。 SDSS J232230.20+050942.06包含两个He-core白色矮人,绕着27度倾斜。 Located 0.76 kpc from the Sun, the binary has an estimated LISA 4-yr signal-to-noise ratio of 40. J2322+0509 is the first He+He white dwarf LISA verification binary, a source class that is predicted to account for one-third of resolved LISA ultra-compact binary detections.
We report the discovery of a 1201 s orbital period binary, the third shortest-period detached binary known. SDSS J232230.20+050942.06 contains two He-core white dwarfs orbiting with a 27 deg inclination. Located 0.76 kpc from the Sun, the binary has an estimated LISA 4-yr signal-to-noise ratio of 40. J2322+0509 is the first He+He white dwarf LISA verification binary, a source class that is predicted to account for one-third of resolved LISA ultra-compact binary detections.