NOAO >   Observing Info >   Approved Programs >   2013A-0355

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Proposal Information for 2013A-0355


PI: John Tobin, NRAO Headquarters, jtobin@nrao.edu
Address: 520 Edgemont Road, Charlottesville, VA 22903-2475, USA

CoI: Barbara Whitney, Space Science Institute
CoI: Lee Hartmann, University of Michigan
CoI: S. Tom Megeath, University of Toledo
CoI: Will Fischer, University of Toledo
CoI: Hector Arce, Yale University
CoI: Karl Stapelfeldt, NASA - Goddard

Title: Edge-on Disks Around the Youngest Protostars

Abstract: We propose high-resolution imaging in the mid-infrared (L'-band) of nearby, nearly edge-on, Class 0 protostars (D < 300 pc). The nearly edge-on inclination of these protostars, as inferred from Spitzer observations, makes these a unique sample for studying the properties of nascent disks in very young protostars. These observations will complement existing sub-mm interferometry of disks by providing constraints on the vertical and radial structure of disks and tracing more extended/tenuous disk material in both the radial and vertical directions. By using Monte Carlo radiative transfer models to simultaneously model the subm-mm and L'-band data, we can constrain the physical parameters needed to understand the early evolution of these disks. These observations will extend existing HST studies of edge-on disks around more evolved objects by using the longer-wavelength capabilities of Gemini to penetrate the obscuration around the youngest protostars and resolve their disks.


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 >   2013A-0355

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