J/ApJ/791/54ivo://CDS.VizieR/J/ApJ/791/54doi:10.26093/cds/vizier.17910054CDSGaidos E.Mann A.W.2017-11-10T11:16:12Z2017-03-29T15:30:01ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frm-starsdwarf-starsmetallicityeffective-temperaturestellar-massesstellar-radiiComparisons 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, such analyses must control for other factors, i.e., metallicity, a stellar parameter that strongly influences the occurrence of gas giant planets. We obtained infrared spectra of 121 M dwarfs stars monitored by the California Planet Search and determined metallicities with an accuracy of 0.08 dex. The mean and standard deviation of the sample are -0.05 and 0.20 dex, respectively. We parameterized the metallicity dependence of the occurrence of giant planets on orbits with a period less than two years around solar-type stars and applied this to our M dwarf sample to estimate the expected number of giant planets. The number of detected planets (3) is lower than the predicted number (6.4), but the difference is not very significant (12% probability of finding as many or fewer planets). The three M dwarf planet hosts are not especially metal rich and the most likely value of the power-law index relating planet occurrence to metallicity is 1.06 dex per dex for M dwarfs compared to 1.80 for solar-type stars; this difference, however, is comparable to uncertainties. Giant planet occurrence around both types of stars allows, but does not necessarily require, a mass dependence of ~1 dex per dex. The actual planet-mass-metallicity relation may be complex, and elucidating it will require larger surveys like those to be conducted by ground-based infrared spectrographs and the Gaia space astrometry mission.2014ApJ...791...54Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/791/54CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/239 : The Hipparcos and Tycho Catalogues (ESA 1997)J/MNRAS/389/585 : Fundamental parameters of M dwarfs (Casagrande+, 2008)J/A+A/551/A36 : Metallicity of M dwarfs. III. (Neves+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/791/54https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/791/54http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/791/54https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/791/54https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/791/54http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/791/54GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/791/54/table1 (Parameters of Nearby M Dwarfs from the California Planet Search)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/791/54/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/791/54/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/791/54/table1?GETtext/xml+votable180.050000true1.295369745.78656860.0055555555555555566/131 546 811 1033 1875 1938 2515 2724 2737 2747 3658 3715 4366 4444 5009 5420 5488 5534 5676 5899 6066 6672 7103 7264 7471 7512 7736 7745 7772 8440 9339 9529 9578 9585 10027 10149 11636 11671 12621 13688 13743 14266 14277 14515 14709 14772 14850 14985 14993 14994 15311 15602 15960 16391 16462 16635 16758 16910 17028 17870 18195 18496 18666 19064 19466 20023 20100 20311 20690 20896 21151 21171 21747 21953 22040 22289 22309 22626 22807 23056 23363 23731 23735 23743 23867 24213 24227 24713 24995 25009 25989 26216 26555 26560 26583 26772 26972 27201 27289 27392 27459 27462 28205 28548 28816 28955 29684 30505 30771 31087 31781 32115 32335 32458 32491 35388 40250 40610 42459 44728 44921 44936 44937 46566 48926https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/791/54?format=asciidefaultJ/ApJ/791/54/table1Parameters of Nearby M Dwarfs from the California Planet SearchSimbadNameSimbad column added by the CDSmeta.idcharStarStar namemeta.id;meta.maincharRadRadiussolRadphys.size.radiusfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHIP? Hipparcos catalog number (NNNNNN in cat I/239)meta.id;phys.atmol.numberintnullable[Fe/H]? Metallicityphys.abund.Zfloatnullablee_[Fe/H]? Error in [Fe/H]stat.error;phys.abund.FefloatnullableTeffEffective temperatureKphys.temperature.effectiveinte_TeffError in TeffKstat.error;phys.temperature.effectiveintl_RadUpper limit flag on Radmeta.code.errorchare_Rad? Error in Rad; 0 for upper limitssolRadstat.errorfloatnullablel_LumUpper limit flag on Lummeta.code.errorcharLumLuminositysolLumphys.luminosityfloate_Lum? Error in Lum; 0 for upper limitssolLumstat.errorfloatnullablel_MassUpper limit flag on Massmeta.code.error;phys.masscharMassMasssolMassphys.massfloate_Mass? Error in Mass; 0 for upper limitssolMassstat.error;phys.massfloatnullableSTeffSource of effective temperature (Visible or K-band)meta.codechar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main