Matches in SemOpenAlex for { <https://semopenalex.org/work/W2783444444> ?p ?o ?g. }
- W2783444444 abstract "Our knowledge of the intrinsic parameters of exoplanets is as precise as our determinations of their stellar hosts parameters. In the case of radial velocity searches for planets, stellar masses appear to be crucial. But before estimating stellar masses properly, detailed spectroscopic analysis is essential. With this paper we conclude a general spectroscopic description of the Pennsylvania-Torun Planet Search (PTPS) sample of stars. We aim at a detailed description of basic parameters of stars representing the complete PTPS sample. We present atmospheric and physical parameters for dwarf stars observed within the PTPS along with updated physical parameters for the remaining stars from this sample after the first Gaia data release. We used high resolution (R=60 000) and high signal-to-noise-ratio (S/N=150-250) spectra from the Hobby-Eberly Telescope and its High Resolution Spectrograph. Stellar atmospheric parameters were determined through a strictly spectroscopic local thermodynamic equilibrium analysis (LTE) of the equivalent widths of FeI and FeII lines. Stellar masses, ages, and luminosities were estimated through a Bayesian analysis of theoretical isochrones. We present $T_{eff}$, log$g$ , [Fe/H], micrturbulence velocities, absolute radial velocities, and rotational velocities for 156 stars from the dwarf sample of PTPS. For most of these stars these are the first determinations. We refine the definition of PTPS subsamples of stars (giants, subgiants, and dwarfs) and update the luminosity classes for all PTPS stars. Using available Gaia and Hipparcos parallaxes, we redetermine the stellar parameters (masses, radii, luminosities, and ages) for 451 PTPS stars. The complete PTPS sample of 885 stars is composed of 132 dwarfs, 238 subgiants, and 515 giants, of which the vast majority are of roughly solar mass." @default.
- W2783444444 created "2018-01-26" @default.
- W2783444444 creator A5014024611 @default.
- W2783444444 creator A5018594360 @default.
- W2783444444 creator A5023024780 @default.
- W2783444444 creator A5075663139 @default.
- W2783444444 creator A5089373948 @default.
- W2783444444 creator A5064908630 @default.
- W2783444444 date "2018-01-09" @default.
- W2783444444 modified "2023-09-27" @default.
- W2783444444 title "The Penn State - Toru'n Centre for Astronomy Planet Search stars IV. Dwarfs and the complete sample" @default.
- W2783444444 cites W1525528577 @default.
- W2783444444 cites W1963760477 @default.
- W2783444444 cites W1982292103 @default.
- W2783444444 cites W1985051703 @default.
- W2783444444 cites W1987488212 @default.
- W2783444444 cites W1989730348 @default.
- W2783444444 cites W1990334877 @default.
- W2783444444 cites W2000054184 @default.
- W2783444444 cites W2011235939 @default.
- W2783444444 cites W2013962707 @default.
- W2783444444 cites W2022234850 @default.
- W2783444444 cites W2022954086 @default.
- W2783444444 cites W2024904975 @default.
- W2783444444 cites W2035525551 @default.
- W2783444444 cites W2040544724 @default.
- W2783444444 cites W2046299362 @default.
- W2783444444 cites W2056932217 @default.
- W2783444444 cites W2057126966 @default.
- W2783444444 cites W2059365121 @default.
- W2783444444 cites W2067884381 @default.
- W2783444444 cites W2069170723 @default.
- W2783444444 cites W2074240506 @default.
- W2783444444 cites W2076827029 @default.
- W2783444444 cites W2076849939 @default.
- W2783444444 cites W2089141001 @default.
- W2783444444 cites W2094670074 @default.
- W2783444444 cites W2097409226 @default.
- W2783444444 cites W2097803775 @default.
- W2783444444 cites W2098376104 @default.
- W2783444444 cites W2100183643 @default.
- W2783444444 cites W2103823123 @default.
- W2783444444 cites W2115558043 @default.
- W2783444444 cites W2117617901 @default.
- W2783444444 cites W2117914263 @default.
- W2783444444 cites W2126741668 @default.
- W2783444444 cites W2130145239 @default.
- W2783444444 cites W2132475323 @default.
- W2783444444 cites W2133725650 @default.
- W2783444444 cites W2140137154 @default.
- W2783444444 cites W2140611633 @default.
- W2783444444 cites W2143213178 @default.
- W2783444444 cites W2151989126 @default.
- W2783444444 cites W2153203210 @default.
- W2783444444 cites W2155624457 @default.
- W2783444444 cites W2159725354 @default.
- W2783444444 cites W2160068792 @default.
- W2783444444 cites W2212414676 @default.
- W2783444444 cites W2307222440 @default.
- W2783444444 cites W2522000147 @default.
- W2783444444 cites W2527745737 @default.
- W2783444444 cites W2741395179 @default.
- W2783444444 cites W3092988075 @default.
- W2783444444 cites W3098789994 @default.
- W2783444444 cites W3098812422 @default.
- W2783444444 cites W3098823902 @default.
- W2783444444 cites W3099181294 @default.
- W2783444444 cites W3099697232 @default.
- W2783444444 cites W3099891946 @default.
- W2783444444 cites W3099956306 @default.
- W2783444444 cites W3100719866 @default.
- W2783444444 cites W3101910914 @default.
- W2783444444 cites W3102266504 @default.
- W2783444444 cites W3103156117 @default.
- W2783444444 cites W3103490909 @default.
- W2783444444 cites W3103741483 @default.
- W2783444444 cites W3103804786 @default.
- W2783444444 cites W3104364310 @default.
- W2783444444 cites W3104766911 @default.
- W2783444444 cites W3104813327 @default.
- W2783444444 cites W3104864401 @default.
- W2783444444 cites W3105577106 @default.
- W2783444444 cites W3105794760 @default.
- W2783444444 cites W3100464799 @default.
- W2783444444 cites W3104789981 @default.
- W2783444444 hasPublicationYear "2018" @default.
- W2783444444 type Work @default.
- W2783444444 sameAs 2783444444 @default.
- W2783444444 citedByCount "3" @default.
- W2783444444 countsByYear W27834444442018 @default.
- W2783444444 countsByYear W27834444442020 @default.
- W2783444444 countsByYear W27834444442021 @default.
- W2783444444 crossrefType "journal-article" @default.
- W2783444444 hasAuthorship W2783444444A5014024611 @default.
- W2783444444 hasAuthorship W2783444444A5018594360 @default.
- W2783444444 hasAuthorship W2783444444A5023024780 @default.
- W2783444444 hasAuthorship W2783444444A5064908630 @default.
- W2783444444 hasAuthorship W2783444444A5075663139 @default.
- W2783444444 hasAuthorship W2783444444A5089373948 @default.
- W2783444444 hasBestOaLocation W27834444441 @default.