Collisional and radiative pumping in 22-GHz water masers

ABSTRACT We briefly discuss the history of pumping schemes for the common 22-GHz maser transition in o-H2O, and note that radiative mechanisms have been considered in the past, as well as the better known collisional pumping mechanisms associated with shock waves. Substantial IR irradiation is indee...

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Veröffentlicht in:	Monthly notices of the Royal Astronomical Society 2022-04, Vol.513 (1), p.1354-1364
Hauptverfasser:	Gray, M D, Etoka, S, Richards, A M S, Pimpanuwat, B
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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