Abstract
Seven of 16 solar-like stars observed with a precision radial velocity technique for the past six years show evidence of long term low level variations. The average external error of the velocities is 13 meters per second, and the observed variations are in the range 25–65 m s−l. The trends in the velocities imply periods of more than ~10 years, but these cannot be due to brown dwarf-mass companions in very long period orbits, since these would have been previously detected by conventional astrometry. Companions of a few Jupiter masses are implied. Since brown dwarfs of 10–80 Jupiter masses are either rare or non-existent, these companions probably represent the tip of the planetary mass spectrum.
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© 1988 Kluwer Academic Publishers
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Campbell, B., Walker, G.A.H., Yang, S. (1988). A Search for Planetary Mass Companions to Nearby Stars. In: Marx, G. (eds) Bioastronomy — The Next Steps. Astrophysics and Space Science Library, vol 144. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-2959-3_12
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DOI: https://doi.org/10.1007/978-94-009-2959-3_12
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