Near-Infrared Observations of Circumstellar Material Around Young Stars on the Sub-AU Scale

Details Near-Infrared Observations of Circumstellar Material Around Young Stars on the Sub-AU Scale Near-Infrared Observations of Circumstellar Material Around Young Stars on the Sub-AU Scale

Dec 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.4905c&link_type=abstract

American Astronomical Society, 195th AAS Meeting, #49.05; Bulletin of the American Astronomical Society, Vol. 31, p.1445

Astronomy and Astrophysics

Astronomy

Scientific paper

We present the first 2.2 um long baseline interferometric observations of the pre-main sequence stars T Tauri & MWC 147 and of the main sequence star Vega. All of these sources are thought to have disks of circumstellar material. The observations were performed at the Palomar Testbed Interferometer (PTI) in September, October and November 1999. PTI has a spatial resolution of 1.5-4.5 mas and, therefore, at the distances of T Tauri, MWC 147 and Vega, the observations sample structures on the sub-AU scale. Additionally, these observations cover a large range of baseline projection angles upon the sky, and have a spectral resolution of approximately R=20 in the K band. In all three sources, PTI has spatially resolved the K-band emission.

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