期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 502, 期 1, 页码 L110-L114出版社
OXFORD UNIV PRESS
DOI: 10.1093/mnrasl/slabO17
关键词
stars: AGB and post-AGB; white dwarfs; planets and satellites: formation; binaries: close; planets and satellites: individual: WD 1856+534 b
资金
- US DOE [DE-SC0001063, DE-SC0020432, DE-SC0020103]
- NSF [AST2009713, AST-1515648, AST-1813298, PHY-2020249]
- STSCI grant [HST-AR-12832.01-A, HST-AR-15044]
- U.S. Department of Energy (DOE) [DE-SC0020103, DE-SC0020432] Funding Source: U.S. Department of Energy (DOE)
Many stars have multiplanet systems, and as they evolve, the innermost planet may be engulfed in a common envelope event. This multiplanet common envelope scenario could significantly impact stellar and planetary evolution. Researchers have developed a simplified version that may explain the observed planet WD 1856 b.
Many stars harbour multiplanet 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 multiplanet 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.
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