Orion B (NGC 2024). III - BIMA SO J(K) = 2(2)-1(1) observations - Evidence for peculiar sulfur chemistry

view Abstract Citations (5) References (30) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Orion B (NGC 2024). III. BIMA SO J K = 2 21 1 Observations: Evidence for Peculiar Sulfur Chemistry Barnes, Peter J. ; Crutcher, Richard M. Abstract Aperture synthesis maps are presented of SO J(K) = 2(2)-1(1) emission at 86.093938 GHz of the molecular cloud Orion B obtained from combined BIMA/NRAO 12-m data. The spatial resolution is 11 x 7 arcsec and the velocity resolution is 0.54 km/s. The maps show fine structure in the dense molecular core, the main features being two relatively compact components aligned with the long quiescent NS-oriented ridge of previous maps. Most notable, however, is the approximately 1-2 km/s blueshift of this line with respect to other high-density tracers of the main core. Implications of these data for the chemistry of SO in dense clouds are discussed. Publication: The Astrophysical Journal Pub Date: April 1992 DOI: 10.1086/171207 Bibcode: 1992ApJ...389..325B Keywords: Interstellar Chemistry; Interstellar Matter; Molecular Clouds; Radio Sources (Astronomy); Star Formation; Sulfur Oxides; Abundance; Formyl Ions; H Ii Regions; Optical Thickness; Spatial Resolution; Astrophysics; ISM: INDIVIDUAL NGC NUMBER: NGC 2024; ISM: MOLECULES; ISM: STRUCTURE; MOLECULAR PROCESSES full text sources ADS | data products SIMBAD (5) Related Materials (2) Part 1: 1989ApJ...342..883B Part 2: 1990ApJ...351..176B