NOAO >   Observing Info >   Approved Programs >   2012B-0295

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Proposal Information for 2012B-0295


PI: Lynne Hillenbrand, Caltech, lah@astro.caltech.edu
Address: Astronomy Department, MC 249-17, Pasadena, CA 91105, USA

CoI: Krzysztof Findeisen, Caltech
CoI: Luisa Rebull, Spitzer Science Center

Title: Connecting Stellar Properties and Aperiodic Photometric Variability Origins in Young Stars

Abstract: Although photometric and emission-line variability is a common property of newly formed stars, the panoply of behavior exhibited by the periodic as well as the more common aperiodic young star variables has not yet been assessed in quantitative detail. We are using the Palomar Transient Factory (PTF) to perform a long duration, high cadence photometric monitoring survey of the North America and Pelican Nebulae complex, complementing previous work by us over more than a decade using both KPNO and other facilities. Here, we propose a spectroscopic investigation that will 1) improve the membership list for this relatively poorly-studied star forming region, especially for non- accreting yet young objects, and 2) provide key information for understanding the diversity of young star variability and its causes, thus leading to a more complete understanding of the accretion disk physics associated with early stellar evolution.


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



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