SIMBAD references

1998PASP..110.1389B - Publ. Astron. Soc. Pac., 110, 1389-1393 (1998/December-0)

A planet with a 3.1 day period around a solar twin. (Research note).

BUTLER R.P., MARCY G.W., VOGT S.S. and APPS K.

Abstract (from CDS):

Doppler measurements from the Keck/HIRES spectrometer of the G3 V star HD 187123 reveal Keplerian variations with a period of 3.097 days and a semiamplitude of 72 m.s–1. An orbital fit yields a companion mass of M=0.52 MJUP/ sini, a semimajor axis of a=0.042 AU, and an eccentricity of e=0.03 (consistent with zero). HD 187123 appears similar to the Sun in mass, age, chromosphere, and rotation rate. Although unlikely, non-Keplerian explanations for the Doppler variations, such as spots and pulsation, cannot be ruled out and require future photometry and spectroscopy.

Abstract Copyright:

Journal keyword(s): Stars: Planetary Systems - Stars: Individual: Henry Draper Number: HD 187123 - Research Notes

Simbad objects: 4

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2019.09.16-19:24:18

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