If the sun has a companion

Details If the sun has a companion If the sun has a companion

Oct 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978natur.275..727p&link_type=abstract

Nature, vol. 275, Oct. 26, 1978, p. 727-730.

Astronomy and Astrophysics

Astronomy

5

Black Holes (Astronomy), Companion Stars, Nemesis (Star), Neutron Stars, Sun, Gravitational Effects, Gravitational Lenses, Luminous Intensity, Solar System, Stellar Luminosity, Stellar Mass Accretion, Stellar Motions, X Ray Sources

Scientific paper

The possibility that the sun has a companion in the form of a black hole or neutron star is investigated through an analysis of the luminosity achieved through accretion. By considering the case of a close encounter between the sun and its postulated temporary companion, constraints on the allowed mass range and radiation mechanisms are obtained. If an encounter with a black hole or neutron star is in progress, it could be possible to observe the gravitational lens effect.

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