Astronomy and Astrophysics – Astronomy
Scientific paper
May 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21830603b&link_type=abstract
American Astronomical Society, AAS Meeting #218, #306.03; Bulletin of the American Astronomical Society, Vol. 43, 2011
Astronomy and Astrophysics
Astronomy
Scientific paper
With the MEarth Project, we are using an array of modest telescopes to monitor the the brightness of 4,000 nearby, mid-to-late M-dwarfs with the primary goal of detecting transiting, habitable super-Earths. In addition to MEarth's exoplanetary science, we have discovered several bright eclipsing binaries that will provide new tests for stellar evolutionary models below the fully convective boundary. Furthermore, we are measuring the photometric variability of our well-defined sample of field M-dwarfs on timescales from 20 minutes to 100 days. Estimating rotation periods for a subsample of our stars with measured parallaxes, we are starting to probe the poorly understood evolution of angular momentum at the bottom of the main sequence. I will discuss these results, as well as our ongoing effort to gather new low-resolution spectra in order to link MEarth's measurements of variability to spectroscopic activity indicators.
Berta Zachory K.
Burke Chris
Charbonneau David
Dittman J.
Falco Emilio E.
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