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Astrophysical Lasers$
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Vladilen Letokhov and Sveneric Johansson

Print publication date: 2008

Print ISBN-13: 9780199548279

Published to Oxford Scholarship Online: May 2009

DOI: 10.1093/acprof:oso/9780199548279.001.0001

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Astrophysical laser in the O I 8446 Å line

Astrophysical laser in the O I 8446 Å line

(p.168) 12 Astrophysical laser in the O I 8446 Å line
Astrophysical Lasers

Vladilen Letokhov

Sveneric Johansson

Oxford University Press

This chapter describes an astrophysical laser in the line 8446 Å O I. Topics covered include spectral anomalies in O I in stars, excitation mechanisms of O I in the Weigelt blots, inverted population and amplification coefficient of the 8446 Å line, spatial features of the O I laser in the Weigelt blobs, and possible O I lasers in stellar atmospheres and Orion Nebulae.

Keywords:   spectral anomalies, excitation, Weigelt blobs, O I lasers, Orion Nebulae

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