Abstract
view Abstract Citations (11) References (22) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Microwave Spectroscopic Mapping of Gaseous Nebulae. III. - Gen, Helium, and Carbon in Orion a I Chaisson, E. J. Abstract Recombination lines of hydrogen and helium have been detected at five locations distributed throughout the interior portion of Ori A. The average values of 9200 K for the temperature and of 0.10 for the relative ionized helium abundance are essentially constant throughout the region mapped. Carbon recombination lines that are thought to originate in a partially ionized region have also been mapped at five locations. Carbon-line emission is found to be most intense near the dark dust lane toward the northeast. Subject headings: abundances, nebular - nebulae - Orion Nebula - radio lines Publication: The Astrophysical Journal Pub Date: December 1973 DOI: 10.1086/152518 Bibcode: 1973ApJ...186..545C full text sources ADS | Related Materials (3) Part 1: 1973ApJ...182..767C Part 2: 1973ApJ...183..479L Part 4: 1973ApJ...186..555C
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