Help!!! Theory for H3+ Recombination Badly Needed

  • Takeshi Oka

Abstract

A spectrum is haunting the field of dissociative recombination—the spectrum of H 3 + in the diffuse interstellar medium. This spectrum, discussed in detail in a separate paper of this volume,1 has revealed the surprisingly high abundance of H 3 + in the diffuse interstellar medium. The intensities of the infrared absorption lines observed toward some 10 reddened visible stars correspond to H 3 + column densities of 1−4×1014cm−2, which is one to two orders of magnitude higher than the value estimated from canonical laboratory and observational astrophysical parameters. The understanding of dissociative recombination is crucial in this estimate since it is the major destruction process of H 3 + in the diffuse interstellar medium.

Keywords

Microwave Depression Recombination Helium Rosen 

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Copyright information

© Springer Science+Business Media New York 2003

Authors and Affiliations

  • Takeshi Oka
    • 1
  1. 1.Department of Chemistry, and Department of Astronomy and Astrophysics, the Enrico Fermi InstituteThe University of ChicagoChicagoUSA

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