Photometric Variability of Solar-Type Stars in the Young Pleiades Open Cluster

Details Photometric Variability of Solar-Type Stars in the Young Pleiades Open Cluster Photometric Variability of Solar-Type Stars in the Young Pleiades Open Cluster

May 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21640014g&link_type=abstract

American Astronomical Society, AAS Meeting #216, #400.14; Bulletin of the American Astronomical Society, Vol. 41, p.856

Biology

Scientific paper

We present some preliminary results from a program of intensive photometric monitoring of four solar-type stars in the young Pleiades cluster at an age of approximately 100 Myr utilizing a small-aperture robotic telescope. The Pleiades targets and their spectral types include hz 212 (K7), hz 253 (G1 V), hz 345 (G8 V) and hz 489 (G0 V). Photometry of the comparison stars and selected field stars included in the CCD frame is also given. The monitoring program over 43 nights of observations and 1500 frames yields information on the nature of both long-term variability and any short-term, transient activity such as flare outbursts.
This investigation is part of a broad effort to delineate the joint evolution of activity and irradiance variability in solar-type stars that may be the hosts of planetary systems. Understanding the nature of the joint variability of irradiance and magnetic activity on sun-like stars spanning a range of ages will provide crucial insight on how frequently earth-like atmospheres are likely to form and survive, and how frequently exo-earths encounter benign climatic variations.
We acknowledge support by a grant from the NASA Astrobiology Institute. The NSO and the NOAO are each operated by AURA under separate cooperative agreements with the National Science Foundation.
This research was partially supported by a grant from the American Astronomical Association.

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