SiO Emission from a 1000 AU Disk in Orion KL
Open Access
- 20 December 1995
- journal article
- research article
- Published by American Astronomical Society in The Astrophysical Journal
- Vol. 455 (2) , L185
- https://doi.org/10.1086/309829
Abstract
We mapped the v = 1 and v = 0, J = 2-1 transitions of SiO in Orion KL with 05 angular resolution. The v = 1 emission originates from an 80 AU diameter ring of maser spots centered on radio continuum source I, while the v = 0 emission appears to delineate a ~1000 AU diameter flared disk centered on source I, with long axis perpendicular to the Orion KL bipolar outflow. The v = 0 line has brightness temperatures as high as 3000 K, probably indicating regions of weak maser emission.Keywords
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