NOAO >   Observing Info >   Approved Programs >   2010B-0174

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Proposal Information for 2010B-0174


PI: Peter McGregor, Australian National University, Peter.McGregor@anu.edu.au
Address: Mt Stromlo Observatory Cotter Road, Weston, ACT 2611, Australia

CoI: Tracy Beck, Space Telescope Science Institute
CoI: Raquel Salmeron, Australian National University
CoI: Geoffrey Bicknell, Australian National University
CoI: Marc White, Australian National University

Title: Accretion and Outflow from Young Stellar Disks

Abstract: We aim to monitor T Tauri star disk emission features and jet outflow morphologies to determine how these features vary with disk accretion rate, and how and when the outflow responds to major accretion events. Young stars are surrounded by circumstellar disks through which they accrete mass. Magneto-centrifugal disk winds remove angular momentum from the inner region and so allow accretion to proceed. These winds are magnetically collimated to form stellar jets. We will determine a) how the disk chromosphere spectrum changes with accretion rate, b) whether new clumps ejected in the outflow result from major accretion events, and c) how jet clumps evolve as they move along the jet channel.


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 >   2010B-0174

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