Revealing the Embedded Disk in the Class 0 Protostar L1157-mm

Details Revealing the Embedded Disk in the Class 0 Protostar L1157-mm Revealing the Embedded Disk in the Class 0 Protostar L1157-mm

Jan 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011aas...21734017c&link_type=abstract

American Astronomical Society, AAS Meeting #217, #340.17; Bulletin of the American Astronomical Society, Vol. 43, 2011

Astronomy and Astrophysics

Astronomy

Scientific paper

We present new observations of the Class 0 protostar L1157-mm with the Combined Array for Research in Millimeter-wave Astronomy (CARMA). Dust continuum from low (40" or 10,000 AU) to high (0.3" or 75 AU) resolution at both 1.3 mm and 3.2 mm are obtained. While a large-scale flattened structure is seen in molecular lines around L1157-mm, the dust continuum shows circularly symmetric structure at all scales. Also, a compact component is detected with an estimated mass of 0.01 solar mass, which implies a possible disk component or small-scale envelope structures. To investigate the circumstellar envelope and the embedded disk component, we perform radiative transfer modeling at multiple scales in Fourier space.

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