NOAO >   Observing Info >   Approved Programs >   2010A-0271

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Proposal Information for 2010A-0271


PI: Rachel Matson, Georgia State University, rmatson@chara.gsu.edu
Address: Physics Department, P.O. Box 4106, Atlanta, Georgia 30302-4106, USA

CoI: Douglas Gies, Georgia State University
CoI: Noel Richardson, Georgia State University

Title: The Structure of Mass Loss from Massive Stars

Abstract: We propose to make a survey of the mass outflows and nebulae surrounding sixteen massive star targets, including interacting binary systems, luminous blue variables, and Wolf-Rayet stars. The structure and kinematics of the outflows in these systems will be measured using integral field spectroscopy of the He I (lambda) 10830 emission line. These Gemini North/NIFS observations will show the importance of binary- related tidal forces, large scale wind shocks, and wind clumping in regions close to the star where their imprint sculpts the geometry and velocity of mass loss. An additional fifteen systems will be observed spectroscopically to determine whether (lambda) 10830 emission is present in similar systems not previously studied at this wavelength.


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 >   2010A-0271

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