The Young Solar Analogs Project

Details The Young Solar Analogs Project The Young Solar Analogs Project

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21724208c&link_type=abstract

American Astronomical Society, AAS Meeting #217, #242.08; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

Since 2007 we have been monitoring the Ca II K chromospheric emission of a set of 23 young solar analogs (YSA). These stars, carefully selected from the Nearby Stars database (Gray et al. 2003, 2006), have spectral types between F8 and K2, and ages between 300 Myr and 1.5 Gyr. The goal of this project is to learn more about the sun-earth environment at a time, about 3.8 billion years ago, when life was gaining a foothold on the young earth. Of particular interest are the characterization of long-term stellar activity cycles, the determination of rotational periods, and the detection of short-term phenomena such as stellar flares. Spectroscopic observations began in 2007, and just recently we have added a simultaneous multi-band photometric component to the project.
We will present preliminary results from the project, and discuss future developments to the program.

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