CO observations of the outflow source NGC 7023

Details CO observations of the outflow source NGC 7023 CO observations of the outflow source NGC 7023

Aug 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986esasp.260..207w&link_type=abstract

In ESA Proceedings of an ESA Workshop on a Spaceborne Submillimeter Astronomy Mission. A Cornerstone of the ESA Long Term Scienc

Astronomy and Astrophysics

Astronomy

Carbon Monoxide, Interstellar Chemistry, Molecular Clouds, Molecular Spectra, Nebulae, Stellar Envelopes, Molecular Rotation, Stellar Mass Ejection, Stellar Models

Scientific paper

Maps for C12Q and C13Q J=1 - greater than 0 rotational transitions of the region surrounding the nebula NGC 7023 are presented. Features which are characteristic of embedded objects undergoing mass outflow are evident. There is little indication from the spectra of high-velocity wings arising from material accelerated within the lobes, but dense CO clumps are located at the extremities of these lobes, suggesting that compression and heating of the cloud occurred there. Optical depths, excitation temperatures, and column densities are derived from the data, and a geometric model is constructed to fit the observed and derived parameters. A disk structure, which surrounds the central sources and lies along the major axis of the cloud, is interpreted as the heated inner surface of the cavity created by the expanding shell.

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