Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265

Details Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265 Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...545..504b&link_type=abstract

The Astrophysical Journal, Volume 545, Issue 1, pp. 504-511.

Astronomy and Astrophysics

Astronomy

76

Stars: Planetary Systems, Stars: Individual (Bd -10°3166, Hd 52265)

Scientific paper

Precise Doppler measurements from the Keck/HIRES spectrometer reveal periodic Keplerian velocity variations in the stars BD -10°3166 and HD 52265. BD -10°3166 (K0 V) has a period of 3.487 days and a semiamplitude of 61 m s-1. An orbital fit yields a companion mass Msini=0.48 MJUP, a semimajor axis of a=0.046 AU, and an eccentricity of e=0.05 (consistent with zero). HD 52265 (G0 V) has a period of 119.0 days, a semiamplitude of 45 m s-1, an eccentricity of 0.29, a semimajor axis of a=0.49 AU, and companion mass Msini=1.13 MJUP. Both of these stars are metal-rich and chromospherically inactive. The mean metallicity of the 33 stars that have detected planets is significantly greater than that of typical stars in the solar neighborhood. We present a catalog of the 35 extrasolar planets known to date, with updated orbits and Msini values. Photometry of BD -10°3166 was obtained with an automated telescope to search for transits. No transits were found, indicating that the inclination of the orbit i is less than 84.3d and sini is less than 0.995. The photometry also reveals no photometric variability larger than 0.0008+/-0.0009 mag at the orbital period of the planet. This confirms that neither starspots nor pulsations are the cause of the radial velocity variations in BD -10°3166. Based on observations obtained at the W. M. Keck Observatory, which is operated jointly by the University of California and the California Institute of Technology.

Affiliated with

Also associated with

No associations

Rating

Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Planetary Companions to the Metal-rich Stars BD -10°3166 and HD 52265 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1731105