Mining Databases for M Dwarf Variability

Details Mining Databases for M Dwarf Variability Mining Databases for M Dwarf Variability

2011-01-07

arxiv.org/abs/1101.1363v1

Astronomy and Astrophysics

Astrophysics

Solar and Stellar Astrophysics

7 Pages, 3 Figures, Submitted to the 16th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun

Scientific paper

Time-resolved databases with large spatial coverage are quickly becoming a standard tool for all types of astronomical studies. We report preliminary results from our search for stellar flares in the 2MASS calibration fields. A sample of 4343 M dwarfs, spatially matched between the SDSS and the 2MASS calibration fields, each with hundreds to thousands of epochs in near infrared bandpasses, is analyzed using a modified Welch-Stetson index to characterize the variability. A Monte Carlo model was used to assess the noise of the variability index. We find significnat residuals above the noise with power-law slopes of -3.37 and -4.05 for our JH and HKs distributions respectively. This is evidence for flares being observed from M dwarfs in infrared photometry.

Affiliated with

Also associated with

No associations

Rating

Mining Databases for M Dwarf Variability does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Mining Databases for M Dwarf Variability, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mining Databases for M Dwarf Variability will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-483428