SIMBAD references

2006PASP..118.1685B - Publ. Astron. Soc. Pac., 118, 1685-1689 (2006/December-0)

A long-period Jupiter-mass planet orbiting the nearby M dwarf GJ 849.

BUTLER R.P., JOHNSON J.A., MARCY G.W., WRIGHT J.T., VOGT S.S. and FISCHER D.A.

Abstract (from CDS):

We report precise Doppler measurements of GJ 849 (M3.5 V) that reveal the presence of a planet with a minimum mass of 0.82MJupin a 5.16 yr orbit. At a=2.35 AU, GJ 849b is the first Doppler-detected planet discovered around an M dwarf orbiting beyond 0.21 AU, and is only the second Jupiter-mass planet discovered around a star less massive than 0.5 M☉. This detection brings to four the number of M stars known to harbor planets. Based on the results of our survey of 1300 FGKM main-sequence stars we find that giant planets within 2.5 AU are ∼3 times more common around GK stars than around M stars. Due to GJ 849's proximity of 8.8 pc, the planet's angular separation is 0.27", making this system a prime target for high-resolution imaging using adaptive optics and future space-borne missions such as the Space Interferometry Mission PlanetQuest. We also find evidence of a linear trend in the velocity time series, which may be indicative of an additional planetary companion.

Abstract Copyright: ∼

Journal keyword(s): Stars: Planetary Systems: Formation - stars: individual - Techniques: Radial Velocities

Simbad objects: 6

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