NOAO >   Observing Info >   Approved Programs >   2010B-0593

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Proposal Information for 2010B-0593


PI: Tom Megeath, University of Toledo, megeath@physics.utoledo.edu
Address: Dept. of Physics and Astronomy, 2801 W. Bancroft St, Toledo, OH 43606

CoI: Lori Allen, NOAO
CoI: Charles Poteet, University of Toledo
CoI: Rob Gutermuth, University of Masschussetts
CoI: Erin Kryukova, University of Toledo
CoI: Amelia Stutz, Max Planck Institute fuer Astronomie
CoI: Will Fischer, University of Toledo
CoI: Scott Wolk, SAO
CoI: Babar Ali, Nasa Herschel Science Center
CoI: Ron Probst, NOAO
CoI: Thomas Stanke, ESO

Title: A Deep Newfirm Survey of the Orion A Cloud

Abstract: We propose deep NEWFIRM H and Ks observations of the Orion A Molecular Cloud. The Orion A cloud is the most active molecular cloud within 420 pc of the Sun. Spitzer identified 3200 pre-main sequence stars with disks and 300 protostars in the Orion A cloud. The NEWFIRM survey will obtain deep H and Ks data with sensitivities 4-5 magnitudes deeper than the 2MASS survey. The goals are the following: \beginitemize \item Combine with existing Spitzer mapping to identify very low mass young stars with disks down past the Deuterium burning limit. \item Detect deeply embedded protostars and their reflection nebulae: these data are a crucial input to an ongoing Herschel survey of Spitzer selected protostars in Orion. \item Map the gas column density of the Orion A cloud by extinction and star counts. By correlating column density with the properties of protostars and the density of young stars, we can better understand how how the gas column density influences star formation. \enditemize


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