Sub-saturn planetary candidates of HD 16141 and HD 46375

Citation
Gw. Marcy et al., Sub-saturn planetary candidates of HD 16141 and HD 46375, ASTROPHYS J, 536(1), 2000, pp. L43-L46
Citations number
26
Categorie Soggetti
Space Sciences
Journal title
ASTROPHYSICAL JOURNAL
ISSN journal
0004637X → ACNP
Volume
536
Issue
1
Year of publication
2000
Part
2
Pages
L43 - L46
Database
ISI
SICI code
0004-637X(20000610)536:1<L43:SPCOH1>2.0.ZU;2-X
Abstract
Precision Doppler measurements from the Reck High-Resolution. Echelle Spect rograph reveal periodic Keplerian velocity variations in the stars HD 16141 and HD 46375. HD 16141 (G5 IV) has a period of 75.8 days and a velocity am plitude of 11 m s(-1), yielding a companion having M sin i = 0.22 M-JUP and a semimajor axis of a = 0.35 AU. HD 46375 (K1 IV-V) has a Period of 3.024 days and a velocity amplitude of 35 m s(-1), yielding a companion with M si n i = 0.25 M-JUP, a semimajor axis of a = 0.041 AU, and an eccentricity of 0.04 (consistent with zero). These companions contribute to the rising plan et mass function toward lower masses.