Is Proxima really in orbit about Alpha CEN A/B?

Details Is Proxima really in orbit about Alpha CEN A/B? Is Proxima really in orbit about Alpha CEN A/B?

Mar 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993mnras.261l...5m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 261, no. 2, p. L5-L7.

Astronomy and Astrophysics

Astrophysics

15

Solar Neighborhood, Stellar Motions, Stellar Systems, Radial Velocity, Stellar Orbits

Scientific paper

Despite the widespread acceptance that Proxima is in a bound orbit about Alpha Cen A/B, widely quoted kinematic data for these stars do not support such a conclusion. We set radial velocity limits for Proxima consistent with the bound-orbit hypothesis, and show that a reasonably precise radial velocity obtained by the ESO Coravel program lies close to these limits. However, given the importance of Proxima for a number of astrophysical questions, more accurate kinematic data are still merited.

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