The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample

  title={The HARPS search for southern extra-solar planets - XXXI. The M-dwarf sample},
  author={Xavier Bonfils and Xavier Delfosse and St{\'e}phane Udry and Thierry Forveille and Michel Mayor and Christian Perrier and François Bouchy and Micha{\"e}l Gillon and C. Lovis and Francesco A. Pepe and Didier Queloz and Nuno C. Santos and Damien S'egransan and J-L. Bertaux},
  journal={Astronomy and Astrophysics},
Searching for planets around stars with different masses helps us to assess the outcome of planetary formation for different initial conditions. The low-mass M dwarfs are also the most frequent stars in our Galaxy and potentially therefore, the most frequent planet hosts. Aims. We present observations of 102 southern nearby M dwarfs, using a fraction of our guaranteed time on the ESO/HARPS spectrograph. We observed for 460 h and gathered 1965 precise (~1-3 m/s) radial velocities (RVs), spanning… Expand
Extrasolar planets and brown dwarfs around AF-type stars - IX. The HARPS southern sample
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The HARPS search for southern extra-solar planets XXXV. The interesting case of HD 41248: stellar activity, no planets?
Context. The search for planets orbiting metal-poor stars is of utmost importance for our understanding of planet formation models. However, no dedicated searches have been conducted so far for veryExpand
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Exoplanet surveys have shown that systems with multiple low-mass planets on compact orbits are common. Except for few cases, however, the masses of these planets are generally unknown. At the veryExpand
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The meter-per-second precision achieved by today velocimeters enables the search for 1 10 M planets in the habitable zone of cool stars. This paper reports on the detection of 3 planets orbiting GJExpand
The HARPS search for southern extra-solar planets - XXXVI. Planetary systems and stellar activity of the M dwarfs GJ 3293, GJ 3341, and GJ 3543
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The Pan-Planets survey observed an area of 42 sq deg. in the galactic disk for about 165 h. The main scientific goal of the project is the detection of transiting planets around M dwarfs. WeExpand
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We describe radial-velocity time series obtained by HARPS on the 3.60 m telescope in La Silla (ESO, Chile) over ten years and report the discovery of five new giant exoplanets in distant orbits;Expand
The HARPS search for southern extra-solar planets XXXIX. HD175607, the most metal-poor G dwarf with an orbiting sub-Neptune
Context. The presence of a small-mass planet (M-p \textless 0.1 M-Jup) seems, to date, not to depend on metallicity, however, theoretical simulations have shown that stars with subsolar metallicitiesExpand
M Dwarf Metallicities and Giant Planet Occurrence: Ironing Out Uncertainties and Systematics
Comparisons between the planet populations around solar-type stars and those orbiting M dwarfs shed light on the possible dependence of planet formation and evolution on stellar mass. However, suchExpand


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ABSTRACT. We analyze 8 years of precise radial velocity measurements from the Keck Planet Search, characterizing the detection threshold, selection effects, and completeness of the survey. We firstExpand
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Precise radial-velocity measurements for data acquired with the HARPS spectrograph infer that three planets orbit the M4 dwarf star GJ876. In particular, we confirm the existence of planet d, whichExpand
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We report on the first extra-solar planet discovered with the brand new HARPS instrument. The planet is a typical "hot Jupiter" with m2 sini = 0.62 MJup and an orbital period of 3.39 days, but fromExpand
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We discuss our high-precision radial velocity results of a sample of 90 M dwarfs observed with the Hobby-Eberly Telescope and the Harlan J. Smith 2.7 m Telescope at McDonald Observatory, as well asExpand
The M dwarf planet search programme at the ESO VLT + UVES. A search for terrestrial planets in the h
We present radial velocity (RV) measurements of our sample of 40 M dwarfs from our planet search programme with VLT+UVES begun in 2000. Although with our RV precision down to 2–2.5 m/s and timebaseExpand
The Lick Planet Search: Detectability and Mass Thresholds
We present an analysis of 11 yr of precision radial velocity measurements of 76 nearby solar-type stars from the Lick radial velocity survey. For each star, we report on variability, periodicity, andExpand
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The GJ 581 planetary system was already known to harbour three planets, including two presumably rocky planets which straddle its habitable zone. We report here the detection of an additional planetExpand
A Search for Jupiter-Mass Companions to Nearby Stars
Abstract We have carefully monitored the radial velocities of 21 bright, solar-type stars for 12 years, None has shown any reflex motion due to a substellar companion to an upper limit of between 1Expand
Detection of Planetary Transits Across a Sun-like Star.
High-precision, high-cadence photometric measurements of the star HD 209458 are reported, which is known from radial velocity measurements to have a planetary-mass companion in a close orbit and the detailed shape of the transit curve due to both the limb darkening of thestar and the finite size of the planet is clearly evident. Expand
No planet for HD 166435
The G0 V star HD 166435 has been observed by the ber-fed spectrograph ELODIE as one of the targets in the large extra-solar planet survey that we are conducting at the Observatory of Haute-Provence.Expand