Abstract
view Abstract Citations (33) References (32) Co-Reads Similar Papers Volume Content Graphics Metrics Export Citation NASA/ADS Collisional Pumping of H 2O Masers in Star-forming Regions Kylafis, Nikolaos D. ; Norman, Colin A. Abstract The pumping of H2O masers in star-forming regions by collisions with H2 molecules has been studied. It is found that the strong water masers in star-forming regions may not be explained by collisional pumping, unless very large aspect ratios (length/diameter) for the cylinder or small velocity gradients along the axis of the cylinder are assumed. In addition to the 22 GHz water maser, results are presented for other maser transitions of water in the submillimeter range. The detection of these masers with submillimeter telescopes could significantly enhance the understanding of the physical conditions in star-forming regions. Publication: The Astrophysical Journal Pub Date: June 1991 DOI: 10.1086/170071 Bibcode: 1991ApJ...373..525K Keywords: Interstellar Matter; Lasing; Radiative Transfer; Star Formation; Water Masers; Aspect Ratio; Cylinders; Hydrogen; Photons; Submillimeter Waves; Astrophysics; INTERSTELLAR: MOLECULES; MASERS; RADIATIVE TRANSFER; STARS: FORMATION full text sources ADS |
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