The extremely high velocity CO flow in HH 7-11

Details The extremely high velocity CO flow in HH 7-11 The extremely high velocity CO flow in HH 7-11

Jul 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...357l..25m&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 357, July 1, 1990, p. L25-L28.

Astronomy and Astrophysics

Astronomy

44

Carbon Monoxide, Herbig-Haro Objects, Infrared Sources (Astronomy), Pre-Main Sequence Stars, Astronomical Models, Emission Spectra, Red Shift, Stellar Spectrophotometry

Scientific paper

New observations are made of the extremely high velocity (EHV) outflow recently discovered near HH 7-11. Maps of CO(2-1) and CO(3-2) EHV emission show that the emitting regions are compact and significantly displaced from the position of the infrared source SVS 13, which drives the outflow. The positional offset similar to the blueshifted EHV lobe and the redshifted lobe has been found for other tracers of shocked gas on the red side of the flow. The EHV lobes could be either 'bullets' or gas swept up by jets interacting with the ambient cloud. The present evidence is not sufficient to rule out the bullet model, but the explanation that the EHV CO is swept-up material is preferable.

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