Astronomy and Astrophysics – Astronomy
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984apj...280..154t&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 280, May 1, 1984, p. 154-162. Research supported by the University of Wyomi
Astronomy and Astrophysics
Astronomy
60
Abundance, Astronomical Spectroscopy, Far Infrared Radiation, Interstellar Matter, Molecular Clouds, Radio Sources (Astronomy), Angular Resolution, Astronomical Maps, Carbon Compounds, Hydrocyanic Acid, Mass Distribution, Orion Nebula, Sulfides
Scientific paper
New far-infrared continuum and millimeter-wave molecular observations of NGC 2024 are presented. The measurements were obtained at relatively high angular resolution making it possible to describe the source energetics and mass distribution in greater detail than previously reported. The object appears to be dominated by a dense ridge of material, extended in the north-south direction and centered on the dark lane that is seen in visual photographs. The maps of the source using the 'high-density' molecules CS and HCN confirm this picture and makes it possible to describe the core structure and molecular abundances. The radio molecular and infrared observations support the idea that an important exciting star in NGC 2024 has yet to be identified and is centered on the dense ridge about 1 arcmin south of the bright mid-infrared source IRS 2. The data presented here, along with other observations, make it possible to describe a model for the source.
Glaccum William
Harper Doyal A.
Lada Charles J.
Loewenstein Robert F.
Schwartz Phil R.
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