VLA ammonia (3,3) observations of heated and high velocity gas in Orion-KL

Details VLA ammonia (3,3) observations of heated and high velocity gas in Orion-KL VLA ammonia (3,3) observations of heated and high velocity gas in Orion-KL

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..393..391w&link_type=abstract

The seventh astrophysical conference: Star formation, near and far. AIP Conference Proceedings, Volume 393, pp. 391-394 (1997).

Astronomy and Astrophysics

Astrophysics

1

Molecular Clouds, H2 Clouds, Dense Clouds, And Dark Clouds, Jets, Outflows, And Bipolar Flows

Scientific paper

We present a high resolution VLA mosaic of ammonia (3,3) emission in the central region of OMC-1. Previous maps of (1,1) and (2,2) emission revealed dense filaments of molecular gas fanning out from the core [1]. The (3,3) emission is sensitive to gas heated in regions of outflow and radiation [2] and thus highlights areas where star formation activity is affecting the surrounding molecular filaments. Four fields were combined to cover a 3'×3' region. The mosaic reveals heated gas near the base of the outflow and also along the eastern filament to distances as far as 2' (0.3 pc) from the central source. A high velocity blue-shifted flow is found with its source near the central ``hot core''. ``Hot spots'' near the base of the filaments show where this high velocity gas leaves the central region along paths of lower optical depth surrounding the filaments. Thus very dense gas is being heated and accelerated in the OMC-1 outflow. The high spatial resolution of the mosaic reveals detailed heating effects from the outflow and radiation over a large area.

Affiliated with

Also associated with

No associations

Rating

VLA ammonia (3,3) observations of heated and high velocity gas in Orion-KL does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with VLA ammonia (3,3) observations of heated and high velocity gas in Orion-KL, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and VLA ammonia (3,3) observations of heated and high velocity gas in Orion-KL will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1773495