LAMOST Observations of Flaring M Dwarfs in the Kepler Field
  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 $H_{\alpha}$ 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 $H_{\alpha}$ emission. A clear trend exists for higher magnetic activities being detected in faster rotating M dwarfs (rotation periods $<$ 20 day). 
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
astro-ph.SR