view Abstract Citations (15) References (19) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Detection of Far-Infrared 13CO Line Emission Genzel, R. ; Poglitsch, A. ; Stacey, G. J. Abstract The authors have detected far-infrared 13CO line emission toward the core of Orion-KL. About 10 - 30 M_sun; of dense and warm (T ≥ 200K) gas are required to account for the 151 μm J = 18 → 17 13CO line flux. At line center the J = 18 → 1713CO line is about 25 times weaker than the 17 → 16 12CO line. The 13CO and 12CO far-infrared lines cannot come from a single, optically thin component of gas. The emission could originate either from an optically thick source of temperature near 200K or, more likely, from several components of gas. Publication: The Astrophysical Journal Pub Date: October 1988 DOI: 10.1086/185288 Bibcode: 1988ApJ...333L..59G Keywords: Carbon Monoxide; Carbon 13; Emission Spectra; Far Infrared Radiation; Interstellar Matter; Line Spectra; Carbon Isotopes; Orion Nebula; Star Formation; Stellar Cores; Astrophysics; INTERSTELLAR: MATTER; INTERSTELLAR: MOLECULES; NEBULAE: ORION NEBULA full text sources ADS | data products SIMBAD (1)