2018
DOI: 10.3847/1538-4365/aab779
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Activity Analyses for Solar-type Stars Observed with Kepler. II. Magnetic Feature versus Flare Activity

Abstract: The light curves of solar-type stars present both periodic fluctuation and flare spikes. The gradual periodic fluctuation is interpreted as the rotational modulation of magnetic features on the stellar surface and is used to deduce magnetic feature activity properties. The flare spikes in light curves are used to derive flare activity properties. In this paper, we analyze the light curve data of three solartype stars (KIC 6034120, KIC 3118883, and KIC 10528093) observed with Kepler space telescope and investig… Show more

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Cited by 32 publications
(16 citation statements)
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“…We estimate the error of the computed parameters using the formulas in the appendix of He et al (2018) and apply the error propagation formula for additional terms. We show only the error bars of a small number of points as a representative in order to avoid cluttering the figures.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…We estimate the error of the computed parameters using the formulas in the appendix of He et al (2018) and apply the error propagation formula for additional terms. We show only the error bars of a small number of points as a representative in order to avoid cluttering the figures.…”
Section: Resultsmentioning
confidence: 99%
“…Where ρ(h) is auto-correlation coefficient at the time lag h, X is the mean value of X t , and N/2 in the integration limits is the largest possible value that permits the entire light curve to be included in the calculations. As in paper I, only the stars with rotation period shorter than 45 days are selected, because the length of each quarter is 90 days and the light curve of longer period stars could not be cross-correlated with itself and i AC does not yield the correct value (He et al 2018) .…”
Section: Magnetic Features and Flare Parametersmentioning
confidence: 99%
“…Solar flares are transient phenomena that occur in the solar atmosphere in regions of high magnetic field concentrations, where large amounts of energy are released in the corona by reconnection of magnetic field lines [5]. Intense solar flares occur in active regions associated with sunspots of complex magnetic structure (e.g [11,14,23,29,40,41]).…”
Section: Mainmentioning
confidence: 99%
“…Besides the Sun, flare phenomenon was also observed on the solar-type stars that possess magnetic activity [26][27][28][29]. In recent years, owing to the continuous light-curve observations for a large volume of stellar objects by the space missions, such as the Kepler space telescope [30], much more stellar flare samples were obtained and available for analysis [27,29]. The understandings about the solar flares can provide a good physical framework basis for investigating the eruption mechanism of stellar flares [31,32].…”
Section: Author Detailsmentioning
confidence: 99%