Proxima Centauri: a transitional modified Newtonian dynamics controlled orbital candidate?

Details Proxima Centauri: a transitional modified Newtonian dynamics controlled orbital candidate? Proxima Centauri: a transitional modified Newtonian dynamics controlled orbital candidate?

Oct 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009mnras.399l..21b&link_type=abstract

Monthly Notices of the Royal Astronomical Society: Letters, Volume 399, Issue 1, pp. L21-L23.

Astronomy and Astrophysics

Astronomy

2

Stars: Individual: Proxima, Stars: Kinematics, Gravitation

Scientific paper

The triple-system candidacy of Proxima Centauri with α 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 α 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-α 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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