Chapter

Astrophysical laser in the O I 8446 Å line

Vladilen Letokhov and Sveneric Johansson

in Astrophysical Lasers

Published in print December 2008 | ISBN: 9780199548279
Published online May 2009 | e-ISBN: 9780191720512 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199548279.003.0012
 Astrophysical laser in the O I 8446 Å line

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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

Chapter.  5864 words.  Illustrated.

Subjects: Atomic, Molecular, and Optical Physics

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