Infrared Interferometric Observations of Young Stellar Objects
Copyright policy )Infrared Interferometric Observations of Young Stellar Objects
We present infrared observations of four young stellar objects using the Palomar Testbed Interferometer (PTI). For three of the sources, T Tau, MWC 147 and SU Aur, the 2.2 micron emission is resolved at PTI's nominal fringe spacing of 4 milliarcsec (mas), while the emission region of AB Aur is over-resolved on this scale. We fit the observations with simple circumstellar material distributions and compare our data to the predictions of accretion disk models inferred from spectral energy distributions. We find that the infrared emission region is tenths of AU in size for T Tau and SU Aur and ~1 AU for MWC 147.
11 pages, 3 figures, to appear in the Astrophysical Journal
- Infrared Processing and Analysis Center United States
- National Aeronautics and Space Administration United States
- University of Florida United States
- University of Florida United States
- California Institute of Technology United States
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
Astrophysics (astro-ph), FOS: Physical sciences, Astrophysics
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