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Laser action in a gas condensation in the vicinity of a hot star

  • Gravity, Astrophysics
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Abstract

In the region near 1 μm, we have found laser action in a quantum transition between highly excited states of Fe II, with its higher levels being optically pumped by the intense H Lyα radiation (1215 Å) formed in the ionized HII region of a gas condensation (blob B) in the close vicinity of the central star in η Carinae.

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Authors and Affiliations

  1. Lund Observatory, Lund University, 221 00, Lund, Sweden

    S. Johansson

  2. Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow region, 142190, Russia

    V. S. Letokhov

Authors
  1. S. Johansson
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  2. V. S. Letokhov
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Additional information

From Pis’ma v Zhurnal Éksperimental’no\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) i Teoretichesko\(\overset{\lower0.5em\hbox{$\smash{\scriptscriptstyle\smile}$}}{l}\) Fiziki, Vol. 75, No. 10, 2002, pp. 591–594.

Original English Text Copyright © 2002 by Johansson, Letokhov.

This work was submitted by the authors in English.

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Johansson, S., Letokhov, V.S. Laser action in a gas condensation in the vicinity of a hot star. Jetp Lett. 75, 495–498 (2002). https://doi.org/10.1134/1.1497875

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  • DOI: https://doi.org/10.1134/1.1497875

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