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

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

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989mnras.237p...1m&link_type=abstract

Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 237, March 1, 1989, p. 1P-6P.

Astronomy and Astrophysics

Astronomy

29

Cosmic Gases, High Temperature Gases, Molecular Gases, Stellar Cores, Submillimeter Waves, Astronomical Maps, High Resolution, Stellar Luminosity

Scientific paper

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.

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