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Sub-Saturn Planet Candidates to HD 16141 and HD 46375

G. Marcy·R. P. Butler·S. S. Vogt
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Abstract

Precision Doppler measurements from the Keck/HIRES spectrometer reveal periodic Keplerian velocity variations in the stars HD 16141 and HD 46375. HD 16141 (G5 IV) has a period of 75.8 d and a velocity amplitude of 11 m/s, yielding a companion having Msini = 0.22 Mjup and a semimajor axis, a = 0.35 AU. HD 46375 (K1 IV/V) has a period of 3.024 d and a velocity amplitude of 35 m/s, yielding a companion with Msini=0.25 Mjup, a semimajor axis of a = 0.041 AU, and an eccentricity of 0.04 (consistent with zero). These companions contribute to the rising planet mass function toward lower masses.

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G. Marcy, R. P. Butler, S. S. Vogt. 2000-04-24. Sub-Saturn Planet Candidates to HD 16141 and HD 46375. https://doi.org/10.1086/312723

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