Planet formation in post-common-envelope binaries
作者： D. R. G. Schleicher , S. Dreizler , M. Völschow , R. Banerjee , F. V. Hessman
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摘要: To understand the evolution of planetary systems, it is important to investigate planets in highly evolved stellar and explore implications their observed properties with respect potential formation scenarios. Observations suggest presence giant post-common-envelope binaries (PCEBs). A particularly well-studied system masses 1.7 M_J 7.0 NN Ser. We show here that a pure first-generation scenario where form before common envelope (CE) phase orbits evolve due changes gravitational inconsistent current data. propose second-generation are formed from material ejected during CE, which may naturally explain masses. In addition, hybrid scenarios CE accretion gas appear as realistic possibility.
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