Sub-Saturn Planetary Candidates of HD 16141 and HD 46375
- 10 June 2000
- journal article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 536 (1), L43-L46
- https://doi.org/10.1086/312723
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.Comment: 4 FigureKeywords
This publication has 19 references indexed in Scilit:
- Detection of Planetary Transits Across a Sun-like StarThe Astrophysical Journal, 2000
- A Transiting “51 Peg–like” PlanetThe Astrophysical Journal, 2000
- Evidence for Multiple Companions to υ AndromedaeThe Astrophysical Journal, 1999
- Structure and Evolution of Nearby Stars with Planets. I. Short‐Period SystemsThe Astrophysical Journal, 1999
- Parent Stars of Extrasolar Planets. IV. 14 Herculis, HD 187123, and HD 210277The Astrophysical Journal, 1999
- Modeling the Diversity of Outer Planetary SystemsThe Astronomical Journal, 1998
- Orbital migration of the planetary companion of 51 Pegasi to its present locationNature, 1996
- Urey Prize Lecture: On the Diversity of Plausible Planetary SystemsIcarus, 1995
- Proximity of Jupiter-Like Planets to Low-Mass StarsScience, 1995
- Objective characterization of stellar activity cycles. I - Methods and solar cycle analysesThe Astrophysical Journal, 1987