Steven S. Vogt et al. 2002 ApJ 568 352 doi:10.1086/338768
Ten Low-Mass Companions from the Keck Precision Velocity Survey*
FREESteven S. Vogt1, R. Paul Butler2, Geoffrey W. Marcy3,4, Debra A. Fischer3,4, Dimitri Pourbaix5, Kevin Apps6 and Gregory Laughlin1
Show affiliationsTen new companions have emerged from the Keck precision Doppler velocity survey, with minimum (M sin i) masses ranging from 0.8 MJUP to 0.34 M
. Five of these are planet candidates with M sin i < 12 MJUP, two are brown dwarf candidates with M sin i ~ 30 MJUP, and three are low-mass stellar companions. Hipparcos astrometry reveals the orbital inclinations and masses for three of the (more massive) companions, and it provides upper limits to the masses for the rest. A new class of extrasolar planet is emerging, characterized by nearly circular orbits and orbital radii greater than 1 AU. The planet HD 4208b appears to be a member of this new class. The mass distribution of extrasolar planets continues to exhibit a rapid rise from 10 MJUP toward the lowest detectable masses near 1 MSAT.
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Issue 1 (2002 March 20)
Received 2001 October 12, accepted for publication 2001 November 19
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Ten Low-Mass Companions from the Keck Precision Velocity Survey
Steven S. Vogt et al. 2002 ApJ 568 352
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