SiO Emission from a 1000 AU Disk in Orion KL

Details SiO Emission from a 1000 AU Disk in Orion KL SiO Emission from a 1000 AU Disk in Orion KL

Dec 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995apj...455l.185w&link_type=abstract

Astrophysical Journal Letters v.455, p.L185

Astronomy and Astrophysics

Astronomy

53

Masers, Stars: Formation, Stars: Circumstellar Matter, Ism: Individual Name: Orion Irc2

Scientific paper

We mapped the v = 1 and v = 0, J = 2--1 transitions of SiO in Orion KL with 0."5 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.

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