Planets in 47 Tuc
作者： M. B. Davies , S. Sigurdsson
DOI: 10.1046/J.1365-8711.2001.04336.X
关键词: Blue straggler 、 Radius 、 Stars 、 Planet 、 Stellar dynamics 、 Cluster (physics) 、 Astrophysics 、 Planetary system 、 Globular cluster 、 Astronomy 、 Physics
摘要: We consider the survivability of planetary systems in globular cluster 47 Tucanae. compute cross-sections for breakup via encounters with single stars and binaries. also to leave planets on eccentric orbits. find that wider (d≳0.3 au) are likely be broken up central regions Tucanae (within half-mass radius cluster). However, tighter those less-dense may survive. Tight will certainly survive clusters where subsequent surveys should conducted.
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