期刊
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY
卷 399, 期 1, 页码 L21-L23出版社
WILEY-BLACKWELL PUBLISHING, INC
DOI: 10.1111/j.1745-3933.2009.00718.x
关键词
stars: individual: Proxima; stars: kinematics; gravitation
The triple-system candidacy of Proxima Centauri with alpha Centauri A/B is reviewed in terms of its potential to demonstrate an orbit controlled according to modified Newtonian dynamics (MOND). It is noted that Proxima is already sufficiently distant from alpha Cen A/B that MOND corrections to its speed and orbit should be present and therefore potentially measurable. It is argued that present-day observations of the Proxima-alpha Centauri A/B system do not rule out the possibility that Proxima occupies a low-eccentricity orbit with an orbital period of the order of a few million years.
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