Abstract
view Abstract Citations (34) References (26) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Maser radiometer observations of water vapor and OH in weak galactic OH sources. Yngvesson, K. S. ; Cardiasmenos, A. G. ; Shanley, J. F. ; Rydbeck, O. E. H. ; Ellder, J. Abstract Observations of water vapor and ground-state hydroxyl lines in weak galactic OH sources were performed with maser-equipped radio telescopes at the NEROC Haystack Observatory and Onsala Space Observatory, Sweden, respectively. In general, the weak sources exhibit simpler spectra than the strong sources, and detailed correlation studies are facilitated. New water vapor sources have been detected in W37, W43 N, NGC 2438, and ON-3. W12 and W37 are examples of sources in which H2O masses while OH is seen only in absorption. In other sources, e.g., W31 and W43 N, the velocities of H2O and OH correlate well. Interferometer measurements of the positions of these fairly weak H2O sources are required for further correlation between OH and H2O. Publication: The Astrophysical Journal Pub Date: January 1975 DOI: 10.1086/153307 Bibcode: 1975ApJ...195...91Y Keywords: Galactic Radiation; Hydroxyl Emission; Line Spectra; Spectrum Analysis; Water Vapor; Absorption Spectra; Masers; Microwave Radiometers; Nebulae; Radiometers; Ruby Lasers; Astrophysics full text sources ADS | data products SIMBAD (1)
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