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Monday, August 15, 2011

M-type stars

Since the age of A type stars may be determined by evolutionary tracks, I wanted to focus my literature search on M-type stars. I found a paper from May of 2011, which says that only 12 M-type stars have known rotation periods. Kiraga & Stepien 2011 identify 31 stars (M0-M3.5) with significant periodic variations (assumed to be the rotation period). of those, only 8 are DEBRIS targets.

When I added the M stars with data into my gyro-plot, they did not fall where I expected...if M stars are fully convective, they should fall on the convective sequence as defined by the gyrochronology papers I've read...



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