论文标题
来自多个星球的连续共同信封事件
Successive common envelope events from multiple planets
论文作者
论文摘要
许多星星藏有多个星光系统。随着这些恒星在进化中的后期扩展，最内向的星球可能会吞噬，从而导致一个共同的信封（CE）事件。即使这不足以弹出信封，它也可能会进一步扩展恒星，从而导致其他CE事件，最后一个释放了信封的剩余内容。这种多行星CE场景可能对整个系统中的恒星和行星演变具有广泛的影响。我们开发了一个简化的版本，并表明它可以解释最近观察到的行星WD 1856 b。
Many stars harbour multi-planet systems. As these stars expand late in their evolutions, the innermost planet may be engulfed, leading to a common envelope (CE) event. Even if this is insufficient to eject the envelope, it may expand the star further, causing additional CE events, with the last one unbinding what remains of the envelope. This multi-planet CE scenario may have broad implications for stellar and planetary evolution across a range of systems. We develop a simplified version and show that it may be able to explain the recently observed planet WD 1856 b.
