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CS(J = 7-6) from heated gas near the embedded sources in NGC 2024

Moore, T. J. T., Chandler, C. J., Gear, Walter Kieran and Mountain, C. M. 1989. CS(J = 7-6) from heated gas near the embedded sources in NGC 2024. Monthly Notices of the Royal Astronomical Society 237 , 1P-6P.

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Abstract

CS(J = 7-6) observations of NGC 2024, at 15-arcsec resolution, show strong emission closely associated with the recently identified submillimeter continuum sources. Significant excitation of this line indicates the presence of localized regions of dense, heated molecular gas and implies that the continuum peaks contain heavily-obscured luminous stellar cores. A lower limit of 28 K is obtained for the line excitation temperature from the observed line strengths. A reanalysis of existing continuum data predicts an effective dust temperature of T(d) = 47 K over the whole region.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Physics and Astronomy
Subjects: Q Science > QB Astronomy
Uncontrolled Keywords: Cosmic Gases, High Temperature Gases, Molecular Gases, Stellar Cores, Submillimeter Waves, Astronomical Maps, High Resolution, Stellar Luminosity
Publisher: Wiley-Blackwell
ISSN: 0035-8711
Related URLs:
Last Modified: 04 Jun 2017 04:17
URI: http://orca.cf.ac.uk/id/eprint/36078

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