Heterodyne spectroscopy of the J = 22-21 CO line in Orion

Journal Article · Wed Nov 01 04:00:00 EST 1989 · Astrophysical Journal; (USA)

DOI:https://doi.org/10.1086/185588· OSTI ID:7000132

Boreiko, R T; Betz, A L ^[1]

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1. California Univ., Berkeley (USA)

The J = 22-21 line of (C-12)O at 2528 GHz was observed in the IRc2 region of Orion. The spectra at 0.6 km/s resolution show both plateau emission with FWHM of about 35 km/s and a narrower component with FWHM of about 8 km/s. Comparison with heterodyne data of similar quality on the J = 17-16 line indicates that the broad and narrow components both originate in gas with an excitation temperature of about 600 K. 24 refs.

• OSTI ID: 7000132
• Journal Information: Astrophysical Journal; (USA), Journal Name: Astrophysical Journal; (USA) Vol. 346; ISSN ASJOA; ISSN 0004-637X
• Country of Publication: United States
• Language: English

Related Subjects

640105* -- Astrophysics & Cosmology-- Galaxies
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COSMIC GASES
EMISSION SPECTRA
ENERGY-LEVEL TRANSITIONS
EXCITATION
FLUIDS
GASES
NEBULAE
OXIDES
OXYGEN COMPOUNDS
RESOLUTION
SHOCK WAVES
SPATIAL RESOLUTION
SPECTRA
SPECTROSCOPY
STAR EVOLUTION