High angular resolution CS (J = 1-0) observations of the bipolar flow source near NGC 2071 - Can the CS compact cloud collimate the flow?

Details High angular resolution CS (J = 1-0) observations of the bipolar flow source near NGC 2071 - Can the CS compact cloud collimate the flow? High angular resolution CS (J = 1-0) observations of the bipolar flow source near NGC 2071 - Can the CS compact cloud collimate the flow?

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...282l..69t&link_type=abstract

Astrophysical Journal, Part 2 - Letters to the Editor (ISSN 0004-637X), vol. 282, July 15, 1984, p. L69-L71. Research supported

Astronomy and Astrophysics

Astronomy

44

Carbon Compounds, Infrared Astronomy, Interstellar Matter, Molecular Clouds, Nebulae, Sulfides, Angular Resolution, Carbon Monoxide, Gas Flow, Millimeter Waves, Stellar Evolution

Scientific paper

The CO bipolar flow source near NGC 2071 has been observed in the J = 1-0 line of carbon monosulfide with 30 arcsec resolution provided by the new 45-m Nobeyama telescope. A compact cloud with a size of about 0.3 pc x 0.15 pc is found, embedded in an extended cloud. This compact molecular cloud is more than four times smaller than was indicated in previously published coarser resolution observations, is elongated orthogonally to the bipolar flow, and shows strong signs of rotation. However, the mass of the compact cloud is estimated to be about 10 solar masses, much less than expected if it has been focusing the flow. Therefore it is concluded that collimation of the flow is taking place at considerably smaller scales unresolved with the 30-arcsec beam.

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