High-resolution molecular line observations of the core and outflow in Orion B

Details High-resolution molecular line observations of the core and outflow in Orion B High-resolution molecular line observations of the core and outflow in Orion B

Nov 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.241..231r&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 241, Nov. 15, 1989, p. 231-246.

Astronomy and Astrophysics

Astronomy

45

Molecular Clouds, Molecular Spectra, Orion Constellation, Radio Sources (Astronomy), Carbon Monoxide, Emission Spectra, Molecular Flow, Protostars, Red Shift

Scientific paper

High-resolution CO J = 2-1 and HCO(+) J = 3-2 maps of the Orion B molecular outflow source are described. The outflow appears to be unipolar, and shows evidence of acceleration of molecular gas at up to 0.6 pc from the driving star. The highest velocity material, as well as being furthest from the source, seems to lie close to the central axis of the flow, and it is likely that it is being accelerated by entrainment in an unobserved flow or jet emanating from the star. The HCO(+) emission arises in the cloud core where the excitation temperature is about 25 K. Mass estimates are in accordance with a model in which the core has a kinetic temperature of 30-50 K, with no molecular depletion on to grains. This is in contrast to the recent suggestion that the core contains cold isothermal protostars.

Affiliated with

Also associated with

No associations

Rating

High-resolution molecular line observations of the core and outflow in Orion B 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 High-resolution molecular line observations of the core and outflow in Orion B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High-resolution molecular line observations of the core and outflow in Orion B will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1617054