Matches in SemOpenAlex for { <https://semopenalex.org/work/W4292002764> ?p ?o ?g. }
- W4292002764 endingPage "810" @default.
- W4292002764 startingPage "799" @default.
- W4292002764 abstract "Tight binaries discovered in young, nearby associations, with known distances, are ideal targets to provide dynamical mass measurements to test the physics of evolutionary models at young ages and very low masses. We report for the first time the binarity of TWA22, possible new dynamical calibrator for evolutionary models at young ages. Based on an accurate trigonometric distance (17.53 +- 0.21 pc) determination, we infer a total dynamical mass of 220 +- 21 MJup for the system. From the resolved near-infrared integral-field spectroscopy, we find an effective temperature Teff=2900+200-200 K for TWA22 A and Teff=2900+200-100 K for TWA22 B and surface gravities between 4.0 and 5.5 dex. From our photometry and a M6 +- 1 spectral type for both components, we find luminosities of log(L/Lsun)=-2.11 +- 0.13 dex and log(L/Lsun)=-2.30 +- 0.16 dex for TWA22 A and B respectively. By comparing these parameters with evolutionary models, we question the age and the multiplicity of this system. We also discuss a possible underestimation of the mass predicted by evolutionary models for young stars close to the substellar boundary." @default.
- W4292002764 created "2022-08-16" @default.
- W4292002764 creator A5020706725 @default.
- W4292002764 creator A5023946378 @default.
- W4292002764 creator A5032844241 @default.
- W4292002764 creator A5039718163 @default.
- W4292002764 creator A5042933911 @default.
- W4292002764 creator A5047916740 @default.
- W4292002764 creator A5048471411 @default.
- W4292002764 creator A5059263007 @default.
- W4292002764 creator A5070230245 @default.
- W4292002764 creator A5091569651 @default.
- W4292002764 date "2009-08-18" @default.
- W4292002764 modified "2023-10-18" @default.
- W4292002764 title "The young, tight, and low-mass binary TWA22AB: a new calibrator for evolutionary models?" @default.
- W4292002764 cites W1515268488 @default.
- W4292002764 cites W1964619610 @default.
- W4292002764 cites W1965864262 @default.
- W4292002764 cites W1966106868 @default.
- W4292002764 cites W1970360517 @default.
- W4292002764 cites W1981225670 @default.
- W4292002764 cites W1991659893 @default.
- W4292002764 cites W2001265656 @default.
- W4292002764 cites W2008993204 @default.
- W4292002764 cites W2032285195 @default.
- W4292002764 cites W2034322537 @default.
- W4292002764 cites W2038416916 @default.
- W4292002764 cites W2048434302 @default.
- W4292002764 cites W2058612290 @default.
- W4292002764 cites W2061914283 @default.
- W4292002764 cites W2063162420 @default.
- W4292002764 cites W2064846308 @default.
- W4292002764 cites W2066381376 @default.
- W4292002764 cites W2070754523 @default.
- W4292002764 cites W2076344505 @default.
- W4292002764 cites W2080259092 @default.
- W4292002764 cites W2081125871 @default.
- W4292002764 cites W2085834526 @default.
- W4292002764 cites W2087148125 @default.
- W4292002764 cites W2087168055 @default.
- W4292002764 cites W2091407898 @default.
- W4292002764 cites W2097456486 @default.
- W4292002764 cites W2105847318 @default.
- W4292002764 cites W2123299027 @default.
- W4292002764 cites W2124827077 @default.
- W4292002764 cites W2126530770 @default.
- W4292002764 cites W2143945150 @default.
- W4292002764 cites W2159429019 @default.
- W4292002764 cites W2164538199 @default.
- W4292002764 cites W3012271949 @default.
- W4292002764 cites W3098283280 @default.
- W4292002764 cites W3098576060 @default.
- W4292002764 cites W3099354203 @default.
- W4292002764 cites W3099504888 @default.
- W4292002764 cites W3100064765 @default.
- W4292002764 cites W3100597667 @default.
- W4292002764 cites W3102131333 @default.
- W4292002764 cites W3103403244 @default.
- W4292002764 cites W3103554663 @default.
- W4292002764 cites W3103729542 @default.
- W4292002764 cites W3106062986 @default.
- W4292002764 cites W3123300166 @default.
- W4292002764 doi "https://doi.org/10.1051/0004-6361/200810921" @default.
- W4292002764 hasPublicationYear "2009" @default.
- W4292002764 type Work @default.
- W4292002764 citedByCount "31" @default.
- W4292002764 countsByYear W42920027642012 @default.
- W4292002764 countsByYear W42920027642014 @default.
- W4292002764 countsByYear W42920027642015 @default.
- W4292002764 countsByYear W42920027642016 @default.
- W4292002764 countsByYear W42920027642017 @default.
- W4292002764 countsByYear W42920027642018 @default.
- W4292002764 countsByYear W42920027642019 @default.
- W4292002764 countsByYear W42920027642020 @default.
- W4292002764 countsByYear W42920027642022 @default.
- W4292002764 crossrefType "journal-article" @default.
- W4292002764 hasAuthorship W4292002764A5020706725 @default.
- W4292002764 hasAuthorship W4292002764A5023946378 @default.
- W4292002764 hasAuthorship W4292002764A5032844241 @default.
- W4292002764 hasAuthorship W4292002764A5039718163 @default.
- W4292002764 hasAuthorship W4292002764A5042933911 @default.
- W4292002764 hasAuthorship W4292002764A5047916740 @default.
- W4292002764 hasAuthorship W4292002764A5048471411 @default.
- W4292002764 hasAuthorship W4292002764A5059263007 @default.
- W4292002764 hasAuthorship W4292002764A5070230245 @default.
- W4292002764 hasAuthorship W4292002764A5091569651 @default.
- W4292002764 hasBestOaLocation W42920027641 @default.
- W4292002764 hasConcept C121332964 @default.
- W4292002764 hasConcept C150846664 @default.
- W4292002764 hasConcept C163479331 @default.
- W4292002764 hasConcept C163531172 @default.
- W4292002764 hasConcept C180690934 @default.
- W4292002764 hasConcept C2777106203 @default.
- W4292002764 hasConcept C33923547 @default.
- W4292002764 hasConcept C44870925 @default.
- W4292002764 hasConcept C48372109 @default.
- W4292002764 hasConcept C51244244 @default.
- W4292002764 hasConcept C68271606 @default.