Infrared Resonance of OH With the $H_{2}$ O Laser: A Galactic Maser Pump?

27 July 1970

journal article
research article
Published by American Physical Society (APS) in Physical Review Letters

Vol. 25 (4) , 199-202
https://doi.org/10.1103/physrevlett.25.199

Abstract

The 79-μm electric dipole spectrum of OH (

{}^{2}Π_{\frac{3}{2}}, J = \frac{3}{2} \leftrightarrow {}^{2}Π_{\frac{1}{2}}, J = \frac{1}{2}

) has been measured by a magnetic-resonance absorption method, with a water-vapor laser as the source oscillator. Corresponding magnetic dipole spectra are calculated from the data. A near overlap of the water line on one magnetic-dipole transition suggests a possible pumping mechanism for the 18-cm maser emission of stellar OH.

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Infrared Resonance of OH With theH2O Laser: A Galactic Maser Pump?

Abstract

Infrared Resonance of OH With the $H_{2}$ O Laser: A Galactic Maser Pump?