2nd age planet formation in post main sequence binaries

行星在恒星周围的吸积盘中形成。通常这些圆盘是在星星形成过程中形成的，随着星星的演化，圆盘被分散，留下一个行星系统。这个项目将研究在后主序星双星系统中第二代行星形成的有趣前景，在这种情况下，圆盘是由供体星星伴星的质量转移形成的。在可能形成第二代行星的宽双星中，这是通过风吸积发生的。学生将进行人口综合分析，以揭示光盘条件的范围，并确定预计将托管行星的双星系统的比例。这将与我们银河系中的双星种群进行比较，并与主序后系统中的任何观测到的行星进行比较。

Planets form in accretion discs around stars. Usually these discs are formed during the star formation process and as the star evolves the disc is dispersed leaving behind a planetary system. This project will investigate the intriguing prospect of 2nd generation planet formation in post main sequence binary systems, where in this case the disc is formed by mass transfer from a donor star companion. In wide binaries where 2nd generation planet formation may be possible, this occurs through wind accretion. The student will perform a population synthesis analysis to reveal the range of disc conditions and determine the fraction of binary systems that are expected to host planets. This will be compared to the binary populations in our own galaxy and compared with any observed planets in post main sequence systems.