Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 2003
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003a%26a...411..437g&link_type=abstract
Astronomy and Astrophysics, v.411, p.437-446 (2003)
Astronomy and Astrophysics
Astrophysics
20
Ism: Individual Objects: Omc1, Ism: Kinematics And Dynamics, Ism: Molecules, Shock Waves, Ism: Lines And Bands, Stars: Formation
Scientific paper
A new instrument, ``GriF'', has been used on the Canada-France-Hawaii Telescope to record spatially and velocity resolved images, in the H_2 v=1-0 S(1) line in the K-band, of a 1'x1' field in the core of the Orion Molecular Cloud, OMC1. Using the PUEO adaptive optics system combined with Fabry-Perot interferometry, diffraction limited spatial resolution of 0.15 arcsec and velocity discrimination of ~ 1 kms-1 has been achieved. These data yield graphic images of shocks in OMC1, presenting a level of detail which has not previously been attained. Observed structures suggest that a significant fraction of the regions strongly emitting in H_2 do so through local, internal shocks, associated with star formation within the clumps of gas involved. Thus the core of OMC1 is revealed for the first time as a region which contains a number of developed protostars.
Based on observations performed at the Canada-France-Hawaii Telescope, Mauna Kea, Hawaii. CFHT Corporation.
Clenet Yann
Field David
Gustafsson Magnus
Kristensen Lars E.
Le Coarer Etienne
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