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- W3101471258 endingPage "43" @default.
- W3101471258 startingPage "43" @default.
- W3101471258 abstract "In our previous work we found that high-quality light curves, such as those obtained by Kepler, may be used to measure stellar surface gravity via granulation-driven light curve flicker (F8). Here, we update and extend the relation originally presented by Bastien et al. in 2013 after calibrating F8 against a more robust set of asteroseismically derived surface gravities. We describe in detail how we extract the F8 signal from the light curves, including how we treat phenomena, such as exoplanet transits and shot noise, that adversely affect the measurement of F8. We examine the limitations of the technique, and, as a result, we now provide an updated treatment of the F8-based error. We briefly highlight further applications of the technique, such as astrodensity profiling or its use in other types of stars with convective outer layers. We discuss potential uses in current and upcoming space-based photometric missions. Finally, we supply F8-based values, and their uncertainties, for 27,628 Kepler stars not identified as hosts of transiting planets, with 4500 K < Teff < 7150 K, 2.5 < < 4.6, Kp ≤ 13.5, and overall photometric amplitudes <10 parts per thousand." @default.
- W3101471258 created "2020-11-23" @default.
- W3101471258 creator A5006764199 @default.
- W3101471258 creator A5054422185 @default.
- W3101471258 creator A5064738089 @default.
- W3101471258 creator A5088359901 @default.
- W3101471258 date "2016-02-05" @default.
- W3101471258 modified "2023-10-17" @default.
- W3101471258 title "A GRANULATION “FLICKER”-BASED MEASURE OF STELLAR SURFACE GRAVITY" @default.
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- W3101471258 doi "https://doi.org/10.3847/0004-637x/818/1/43" @default.
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