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• W4385215860 startingPage "131" @default.
• W4385215860 abstract "Abstract The ages of solar-like stars have been at the center of many studies such as exoplanet characterization or Galactic-archeology. While ages are usually computed from stellar evolution models, relations linking ages to other stellar properties, such as rotation and magnetic activity, have been investigated. With the large catalog of 55,232 rotation periods, P rot , and photometric magnetic activity index, S ph from Kepler data, we have the opportunity to look for such magneto-gyro-chronology relations. Stellar ages are obtained with two stellar evolution codes that include treatment of angular momentum evolution, hence using P rot as input in addition to classical atmospheric parameters. We explore two different ways of predicting stellar ages on three subsamples with spectroscopic observations: solar analogs, late-F and G dwarfs, and K dwarfs. We first perform a Bayesian analysis to derive relations between S ph and ages between 1 and 5 Gyr, and other stellar properties. For late-F and G dwarfs, and K dwarfs, the multivariate regression favors the model with P rot and S ph with median differences of 0.1% and 0.2%, respectively. We also apply Machine Learning techniques with a Random Forest algorithm to predict ages up to 14 Gyr with the same set of input parameters. For late-F, G and K dwarfs together, predicted ages are on average within 5.3% of the model ages and improve to 3.1% when including P rot . These are very promising results for a quick age estimation for solar-like stars with photometric observations, especially with current and future space missions." @default.
• W4385215860 created "2023-07-25" @default.
• W4385215860 creator A5000594740 @default.
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• W4385215860 date "2023-07-24" @default.
• W4385215860 modified "2023-09-30" @default.
• W4385215860 title "Magnetic Activity Evolution of Solar-like Stars. I. S _ph–Age Relation Derived from Kepler Observations" @default.
• W4385215860 cites W1483310431 @default.
• W4385215860 cites W1878301732 @default.
• W4385215860 cites W1933422323 @default.
• W4385215860 cites W1942647475 @default.
• W4385215860 cites W1974580394 @default.
• W4385215860 cites W1977375136 @default.
• W4385215860 cites W1978334384 @default.
• W4385215860 cites W1979379324 @default.
• W4385215860 cites W1984162005 @default.
• W4385215860 cites W1985631399 @default.
• W4385215860 cites W1993271579 @default.
• W4385215860 cites W2000430339 @default.
• W4385215860 cites W2006124034 @default.
• W4385215860 cites W2011301426 @default.
• W4385215860 cites W2012799415 @default.
• W4385215860 cites W2016893051 @default.
• W4385215860 cites W2033937544 @default.
• W4385215860 cites W2055626279 @default.
• W4385215860 cites W2055806021 @default.
• W4385215860 cites W2061759127 @default.
• W4385215860 cites W2065472013 @default.
• W4385215860 cites W2070240923 @default.
• W4385215860 cites W2070508637 @default.
• W4385215860 cites W2085677506 @default.
• W4385215860 cites W2092039425 @default.
• W4385215860 cites W2093991566 @default.
• W4385215860 cites W2094450965 @default.
• W4385215860 cites W2096619903 @default.
• W4385215860 cites W2096688555 @default.
• W4385215860 cites W2101075118 @default.
• W4385215860 cites W2106307962 @default.
• W4385215860 cites W2130023882 @default.
• W4385215860 cites W2135625048 @default.
• W4385215860 cites W2142350809 @default.
• W4385215860 cites W2146292423 @default.
• W4385215860 cites W2152543234 @default.
• W4385215860 cites W2227350766 @default.
• W4385215860 cites W2287912467 @default.
• W4385215860 cites W2512583703 @default.
• W4385215860 cites W2525343212 @default.
• W4385215860 cites W2558422827 @default.
• W4385215860 cites W2618467352 @default.
• W4385215860 cites W2739200487 @default.
• W4385215860 cites W2761986865 @default.
• W4385215860 cites W2798336535 @default.
• W4385215860 cites W2811304894 @default.
• W4385215860 cites W2888532099 @default.
• W4385215860 cites W2908727800 @default.
• W4385215860 cites W2911964244 @default.
• W4385215860 cites W2915464453 @default.
• W4385215860 cites W2945916434 @default.
• W4385215860 cites W2967662625 @default.
• W4385215860 cites W2999961293 @default.
• W4385215860 cites W3028685339 @default.
• W4385215860 cites W3032874046 @default.
• W4385215860 cites W3085524895 @default.
• W4385215860 cites W3088050931 @default.
• W4385215860 cites W3098019590 @default.
• W4385215860 cites W3098181789 @default.
• W4385215860 cites W3098278741 @default.
• W4385215860 cites W3098471461 @default.
• W4385215860 cites W3098830536 @default.
• W4385215860 cites W3098957108 @default.
• W4385215860 cites W3099100952 @default.
• W4385215860 cites W3099353780 @default.
• W4385215860 cites W3099359742 @default.
• W4385215860 cites W3099398113 @default.
• W4385215860 cites W3099494091 @default.
• W4385215860 cites W3100117084 @default.
• W4385215860 cites W3100174716 @default.
• W4385215860 cites W3100692371 @default.
• W4385215860 cites W3101313741 @default.
• W4385215860 cites W3101615941 @default.
• W4385215860 cites W3102499695 @default.
• W4385215860 cites W3102535523 @default.
• W4385215860 cites W3102902430 @default.
• W4385215860 cites W3103014958 @default.
• W4385215860 cites W3103210925 @default.
• W4385215860 cites W3103448631 @default.
• W4385215860 cites W3104306953 @default.
• W4385215860 cites W3105153290 @default.

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