期刊
ASTROPHYSICAL JOURNAL
卷 719, 期 2, 页码 1427-1432出版社
IOP PUBLISHING LTD
DOI: 10.1088/0004-637X/719/2/1427
关键词
black hole physics; galaxies: nuclei; gravitational waves
资金
- National Science Foundation [AST 06-07428]
- NASA [NNX08AH29G, 06-BEFS06-19, 09-ATP09-0136]
Although the gravitational wave kick velocity in the orbital plane of coalescing black holes has been understood for some time, apparently conflicting formulae have been proposed for the dominant out-of-plane kick, each a good fit to different data sets. This is important to resolve because it is only the out-of-plane kicks that can reach more than 500 km s(-1) and can thus eject merged remnants from galaxies. Using a different ansatz for the out-of-plane kick, we show that we can fit almost all existing data to better than 5%. This is good enough for any astrophysical calculation and shows that the previous apparent conflict was only because the two data sets explored different aspects of the kick parameter space.
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