Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aas...21348505l&link_type=abstract
American Astronomical Society, AAS Meeting #213, #485.05; Bulletin of the American Astronomical Society, Vol. 41, p.456
Astronomy and Astrophysics
Astronomy
1
Scientific paper
We have observed the Northern filament in the Orion-Monoceros molecular cloud complex (OMC) in the J=1-0 lines of 12CO and 13CO using SRAO 6-m telescope. We have mapped three regions of the Northern filament with a spatial resolution of 2 arcmin. This filament is very narrow ( 0.5o) and significantly extended ( 10o) on the sky. The shape and motion of this extraordinary filament suggest the influence of a magnetic field that is highly ordered on a large scale, and the filament appears to connect molecular clouds lying far below the galactic plane to the plane itself. We seek the evidence for flow along the filament, as well as for acceleration and rotation. The primary question we seek to answer is whether the filament is a channel along which molecular gas moves toward the Galactic plane from the OMC region.
Kim Seongcheol
Lee Jeewon
Morris Marita
Sohn Bongwon
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