NOAO >   Observing Info >   Approved Programs >   2014A-0133

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Proposal Information for 2014A-0133


PI: Gerard van Belle, Lowell Observatory, gerard@lowell.edu
Address: 1400 West Mars Hill Road, Flagstaff, Arizona 86001, United States

Title: A Direct Imaging Study of Rapid Rotators with the CHARA Array

Abstract: We propose to directly image 7 rapidly rotating A- to F-type stars with the MIRC instrument on the CHARA Array, providing a full parametrization of the stellar surfaces, including gravity darkening (beta). The value of (beta) will be examined versus stellar properties, such as pole-to-equator surface temperature profiles and spectral type, to characterize the stellar atmospheres as they transition from radiative to convective energy transport.


National Optical Astronomy Observatory, 950 North Cherry Avenue, P.O. Box 26732, Tucson, Arizona 85726, Phone: (520) 318-8000, Fax: (520) 318-8360



NOAO >   Observing Info >   Approved Programs >   2014A-0133

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