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Paper: A search for hydrogen lasers in MWC 349 from the KAO
Volume: 73, Airborne Astronomy Symposium on the Galactic Ecosystem: From Gas to Stars to Dust
Page: 271
Authors: Strelnitski, Vladimir S.; Smith, Howard A.; Haas, Michael R.; Colgan, Sean W. J.; Erickson, Edwin F.; Geis, Norbert; Hollenbach, David J.; Townes, Charles H.
Abstract: We report the first observations of H15 alpha (169.4114 microns) and H10 alpha (52.5349 microns) in MWC 349 from the KAO. We obtain a 3 sigma upper limit of 2 x 10-19 W/sq cm for H15 alpha and a flux of 3.6 +/- 1.3 x 10-19 W/sq for H10 alpha. These fluxes are consistent with an appreciable excess due to laser amplification down to quantum numbers n approx. equals 10.
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