High Velocity Outflows in the Orion Nebula Determined from Proper Motions

Details High Velocity Outflows in the Orion Nebula Determined from Proper Motions High Velocity Outflows in the Orion Nebula Determined from Proper Motions

Sep 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003rmxac..18...80o&link_type=abstract

The Eight Texas-Mexico Conference on Astrophysics (Eds. M. Reyes-Ruiz & E. Vázquez-Semadeni) Revista Mexicana de Astronomía y As

Astronomy and Astrophysics

Astrophysics

1

H Ii Regions, Ism: Jets And Outflows, Stars: Pre-Main Sequence, Stars: Mass Loss

Scientific paper

Hubble Space Telescope images are of sufficiently high resolution that when recent images are combined with those going back to December, 1993, one can measure proper motions down to about 10 km s-1. Such observations show a wealth of detail and reveal multiple high velocity outflow systems. Proper motions are especially good for determining the origin of outflows. They reveal an outflow (HH 625) originating from the high velocity bipolar molecular source in Orion-S. Perhaps most remarkable is the evidence that most of the optical outflow in Orion appears to originate from a source located at 5:35:14.56 -5:23:54 (2000) which possesses no bright counterpart at any observed wavelength.

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