Detection and Identification of Recombination Lines from an H i Region

Abstract

view Abstract Citations (59) References (11) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Detection and Identification of Recombination Lines from an H i Region Ball, J. A. ; Cesarsky, D. ; Dupree, A. K. ; Goldberg, L. ; Lilley, A. E. Abstract The H157a line arising from an H I region has been observed in the spectrum of NGC 2024 (Orion B). The measured frequency separation between this line and the anomalous line at 157a allows a firm identification of the anomalous emitter as carbon. The fraction of ionized hydrogen in this H I cloud is found to be (2.7 i 1.8) x 1O . Publication: The Astrophysical Journal Pub Date: October 1970 DOI: 10.1086/180616 Bibcode: 1970ApJ...162L..25B full text sources ADS |