FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W1998650724> ?p ?o ?g. }

• W1998650724 endingPage "942" @default.
• W1998650724 startingPage "935" @default.
• W1998650724 abstract "<i>Context. <i/> For the past 3 years we have been monitoring 62 K giant stars using precise stellar radial velocity (RV) measurements with the 2 m Alfred Jensch Telescope of the Thüringer Landessternwarte Tautenburg (<i>TLS<i/>).<i>Aims. <i/>To probe the dependence of planet formation on stellar mass by finding planets around intermediate-mass giant stars.<i>Methods. <i/>We present high accuracy RV measurements of the K1.5 III star 42 Dra and the K4 III star HD 139357. The wavelength reference for the RV measurements was provided by an iodine absorption cell placed in the optical path of the spectrograph.<i>Results. <i/> Our measurements reveal that the time series of the radial velocity of 42 Dra shows a periodic variation of 479.1 days with a semiamplitude of <i>K<i/> = 112.5 m s<sup>-1<sup/>. An orbital solution yields a mass function of = (5.29 <i>±<i/> 0.62) 10<sup>-8<sup/> solar masses () and an eccentricity of <i>e<i/> = 0.38 <i>±<i/> 0.06. From our template spectra, taken without the iodine cell, we determine a metallicity of -0.46 <i>±<i/> 0.04 dex and a stellar mass of 0.98 <i>±<i/> 0.06 for this star. HD 139 357 shows periodic RV variations of 1125.7 days with a semiamplitude <i>K<i/> = 159.9 m s<sup>-1<sup/>. An orbital solution yields an eccentricity, <i>e<i/> = 0.10 <i>±<i/> 0.02 and mass function, = (4.79 <i>±<i/> 0.57) 10<sup>-7<sup/> . An iron abundance of -0.13 <i>±<i/> 0.04 dex is obtained, and a stellar mass of 1.31 <i>±<i/> 0.24 for the parent star is derived. An analysis of the <i>HIPPARCOS<i/> photometry as well as our H<i>α<i/> core flux measurements reveal no variability with the radial velocity period. Keplerian motion is the most likely explanation for the observed radial velocity variations for these stars. <i>Conclusions. <i/> The K giant stars 42 Dra and HD 139 357 host extrasolar planets with “minimum masses” of 3.88 <i>±<i/> 0.85 Jupiter masses and 9.76<i>±<i/>2.15 , respectively." @default.
• W1998650724 created "2016-06-24" @default.
• W1998650724 creator A5007397660 @default.
• W1998650724 creator A5020770408 @default.
• W1998650724 creator A5034329742 @default.
• W1998650724 creator A5045889594 @default.
• W1998650724 creator A5047808099 @default.
• W1998650724 creator A5069271571 @default.
• W1998650724 date "2009-03-19" @default.
• W1998650724 modified "2023-09-27" @default.
• W1998650724 title "Planetary companion candidates around the K giant stars 42 Draconis and HD 139 357" @default.
• W1998650724 cites W1967245741 @default.
• W1998650724 cites W1977216001 @default.
• W1998650724 cites W1980625679 @default.
• W1998650724 cites W1985601475 @default.
• W1998650724 cites W1986316936 @default.
• W1998650724 cites W1988665718 @default.
• W1998650724 cites W1990334877 @default.
• W1998650724 cites W2000054184 @default.
• W1998650724 cites W2001190252 @default.
• W1998650724 cites W2002876153 @default.
• W1998650724 cites W2005371561 @default.
• W1998650724 cites W2017164104 @default.
• W1998650724 cites W2022954086 @default.
• W1998650724 cites W2026448204 @default.
• W1998650724 cites W2026914150 @default.
• W1998650724 cites W2046299362 @default.
• W1998650724 cites W2059365121 @default.
• W1998650724 cites W2067172675 @default.
• W1998650724 cites W2076152999 @default.
• W1998650724 cites W2076849939 @default.
• W1998650724 cites W2092693142 @default.
• W1998650724 cites W2095408288 @default.
• W1998650724 cites W2098376104 @default.
• W1998650724 cites W2100916445 @default.
• W1998650724 cites W2107383651 @default.
• W1998650724 cites W2115558043 @default.
• W1998650724 cites W2117617901 @default.
• W1998650724 cites W2133725650 @default.
• W1998650724 cites W2134323902 @default.
• W1998650724 cites W2140611633 @default.
• W1998650724 cites W2151493289 @default.
• W1998650724 cites W2155677032 @default.
• W1998650724 cites W3037008719 @default.
• W1998650724 cites W3100708188 @default.
• W1998650724 cites W3102813569 @default.
• W1998650724 cites W3104393094 @default.
• W1998650724 cites W3121810782 @default.
• W1998650724 cites W4292508310 @default.
• W1998650724 doi "https://doi.org/10.1051/0004-6361/200810837" @default.
• W1998650724 hasPublicationYear "2009" @default.
• W1998650724 type Work @default.
• W1998650724 sameAs 1998650724 @default.
• W1998650724 citedByCount "34" @default.
• W1998650724 countsByYear W19986507242012 @default.
• W1998650724 countsByYear W19986507242013 @default.
• W1998650724 countsByYear W19986507242014 @default.
• W1998650724 countsByYear W19986507242015 @default.
• W1998650724 countsByYear W19986507242016 @default.
• W1998650724 countsByYear W19986507242017 @default.
• W1998650724 countsByYear W19986507242018 @default.
• W1998650724 countsByYear W19986507242021 @default.
• W1998650724 countsByYear W19986507242022 @default.
• W1998650724 crossrefType "journal-article" @default.
• W1998650724 hasAuthorship W1998650724A5007397660 @default.
• W1998650724 hasAuthorship W1998650724A5020770408 @default.
• W1998650724 hasAuthorship W1998650724A5034329742 @default.
• W1998650724 hasAuthorship W1998650724A5045889594 @default.
• W1998650724 hasAuthorship W1998650724A5047808099 @default.
• W1998650724 hasAuthorship W1998650724A5069271571 @default.
• W1998650724 hasBestOaLocation W19986507241 @default.
• W1998650724 hasConcept C100905312 @default.
• W1998650724 hasConcept C121332964 @default.
• W1998650724 hasConcept C125311221 @default.
• W1998650724 hasConcept C125857072 @default.
• W1998650724 hasConcept C1276947 @default.
• W1998650724 hasConcept C150846664 @default.
• W1998650724 hasConcept C151730666 @default.
• W1998650724 hasConcept C168589115 @default.
• W1998650724 hasConcept C2776026716 @default.
• W1998650724 hasConcept C2779343474 @default.
• W1998650724 hasConcept C2780118271 @default.
• W1998650724 hasConcept C41074950 @default.
• W1998650724 hasConcept C44870925 @default.
• W1998650724 hasConcept C4839761 @default.
• W1998650724 hasConcept C51244244 @default.
• W1998650724 hasConcept C54002840 @default.
• W1998650724 hasConcept C85837739 @default.
• W1998650724 hasConcept C86803240 @default.
• W1998650724 hasConcept C99465377 @default.
• W1998650724 hasConceptScore W1998650724C100905312 @default.
• W1998650724 hasConceptScore W1998650724C121332964 @default.
• W1998650724 hasConceptScore W1998650724C125311221 @default.
• W1998650724 hasConceptScore W1998650724C125857072 @default.
• W1998650724 hasConceptScore W1998650724C1276947 @default.
• W1998650724 hasConceptScore W1998650724C150846664 @default.
• W1998650724 hasConceptScore W1998650724C151730666 @default.
• W1998650724 hasConceptScore W1998650724C168589115 @default.

• next