Doppler measurements of the M4 dwarf star, Gliese 876, taken at both Lick and Keck Observatory reveal periodic, Keplerian velocity variations with a period of 61 days. The orbital fit implies that the companion has a mass of, M = 2.1 MJUP /sin i, an orbital eccentricity of, e = 0.27+-0.03, and a semimajor axis of, a = 0.21 AU. The planet is the first found around an M dwarf, and was drawn from a survey of 24 such stars at Lick Observatory. It is the closest extrasolar planet yet found, providing opportunities for follow--up detection. The presence of a giant planet on a non-circular orbit, 0.2 AU from a 1/3 M_Sun star, presents a challenge to planet formation theory. This planet detection around an M dwarf suggests that giant planets are nu...
The results of this thesis put constraints on the physical properties, and dynamics of the\ud exopla...
Context: How planet properties depend on stellar mass is a key diagnostic of planetary formation mec...
Context. Exoplanet Doppler surveys are currently the most efficient means to detect low-mass compani...
High-precision, high-cadence radial velocity monitoring over the past 8 yr at the W. M. Keck Observa...
We report the results of a globally coordinated photometric campaign to search for transits by the P...
We report precise Doppler measurements of GJ 436 (M2.5 V) obtained at Keck Observatory. The velociti...
We report precise Doppler measurements of GJ849 (M3.5V) that reveal the presence of a planet with a ...
We report precise Doppler measurements of the nearby (d = 10.34 pc) M dwarf Gl 649 that reveal the p...
We report the first astrometrically determined mass of an extrasolar planet, a companion previously ...
Context. Statistical analyses based on Kepler data show that most of the early-type M dwarfs host mu...
Context.How planet properties depend on stellar mass is a key diagnostic of planetary formation mech...
We report precise Doppler measurements of GJ 317 (M3.5 V) that reveal the presence of a planet with ...
High-precision, high-cadence radial velocity monitoring over the past 8 yr at the W. M. Keck Observa...
We report precise Doppler measurements of GJ 849 (M3.5 V) that reveal the presence of a planet with ...
International audienceContext. Statistical analyses based on Kepler data show that most of the early...
The results of this thesis put constraints on the physical properties, and dynamics of the\ud exopla...
Context: How planet properties depend on stellar mass is a key diagnostic of planetary formation mec...
Context. Exoplanet Doppler surveys are currently the most efficient means to detect low-mass compani...
High-precision, high-cadence radial velocity monitoring over the past 8 yr at the W. M. Keck Observa...
We report the results of a globally coordinated photometric campaign to search for transits by the P...
We report precise Doppler measurements of GJ 436 (M2.5 V) obtained at Keck Observatory. The velociti...
We report precise Doppler measurements of GJ849 (M3.5V) that reveal the presence of a planet with a ...
We report precise Doppler measurements of the nearby (d = 10.34 pc) M dwarf Gl 649 that reveal the p...
We report the first astrometrically determined mass of an extrasolar planet, a companion previously ...
Context. Statistical analyses based on Kepler data show that most of the early-type M dwarfs host mu...
Context.How planet properties depend on stellar mass is a key diagnostic of planetary formation mech...
We report precise Doppler measurements of GJ 317 (M3.5 V) that reveal the presence of a planet with ...
High-precision, high-cadence radial velocity monitoring over the past 8 yr at the W. M. Keck Observa...
We report precise Doppler measurements of GJ 849 (M3.5 V) that reveal the presence of a planet with ...
International audienceContext. Statistical analyses based on Kepler data show that most of the early...
The results of this thesis put constraints on the physical properties, and dynamics of the\ud exopla...
Context: How planet properties depend on stellar mass is a key diagnostic of planetary formation mec...
Context. Exoplanet Doppler surveys are currently the most efficient means to detect low-mass compani...