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arXiv · 1610.04541

LAMOST Observations of Flaring M Dwarfs in the Kepler Field

H. -Y. Chang·Y. -H. Song·A. -L. Luo·L. -C. Huang·W. -H. Ip·J. -N. Fu·Y. Zhang·Y. -H. Hou·Z. -H Cao·Y. -F Wang
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Abstract

A sample of the LAMOST spectra of the early type M0-M3 dwarfs is compared with the Kepler observations. It is found that M dwarfs with strong chromospheric emission in $H_α$ have large flare activity in general. The rotational periods derived from the Kepler measurements have close correlations with the sizes of the flares, the power-law distribution index and the equivalent widths of the $H_α$ emission. A clear trend exists for higher magnetic activities being detected in faster rotating M dwarfs (rotation periods $<$ 20 day).

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H. -Y. Chang, Y. -H. Song, A. -L. Luo, L. -C. Huang, W. -H. Ip, J. -N. Fu, Y. Zhang, Y. -H. Hou, Z. -H Cao, Y. -F Wang. 2016-10-14. LAMOST Observations of Flaring M Dwarfs in the Kepler Field. https://doi.org/10.3847/1538-4357%2F834%2F1%2F92

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