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LAMOST Observations of Flaring M Dwarfs in the Kepler Field

更新时间:2017-05-22 14:59:19点击次数:1189次字号:T|T

Abstract

A sample of the Large Sky Area Multi-Object Fibre Spectroscopic Telescope spectra of early-type M0-M3 dwarfs is compared with 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 days).
2017, The Astrophysical Journal, 834, 92 (编辑:admin)