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Methylidyne Cation

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Encyclopedia of Astrobiology

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Synonyms

CH+

Definition

The methylidyne ion CH+ was one of the first molecules detected in the interstellar medium, being identified in absorption at visible/near ultraviolet wavelengths in the spectra of background stars in 1941 by Douglas and Herzberg. CH+ emission at visible wavelengths is seen from the tails of comets. Pure rotational transitions have been observed at far infrared wavelengths from planetary nebula, molecular clouds, and Photodissociation regions using the ISO and Herschel satellites.

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References and Further Reading

  • Cernicharo J, Liu XW, Gonzalez-Alfonso E, Cox P, Barlow MJ, Lim T, Swinyard BM (1997) Discovery of far-infrared pure rotational transitions of CH+ in NGC 7027. Astrophys J Lett 483:L65–L68

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  • Douglas AE, Herzberg G (1941) Note on CH+ in interstellar space and in the laboratory. Astrophys J 94:381

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Authors and Affiliations

  1. Department of Astronomy, University of Massachusetts, Lederle Graduate Research Tower B 619E, 710 North Pleasant Street, 01003-9305, Amherst, MA, USA

    William M. Irvine

Authors
  1. William M. Irvine
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Correspondence to William M. Irvine .

Editor information

Editors and Affiliations

  1. Centro de Biología Molecular, Universidad Autónoma de Madrid, Madrid, Spain

    Ricardo Amils

  2. Labo. d'Astrophysique de Bordeaux (LAB), Observatoire Aquitain des Sciences de l'Univers (OASU), Floirac CX, France

    Muriel Gargaud

  3. Centro de Astrobiología (CAB), Inst. Nacional de Técnica Aeroespacial, Torrejón de Ardoz, Madrid, Spain

    José Cernicharo Quintanilla

  4. Geophysical Lab., Carnegie Institution of Washington, Washington, District of Columbia, USA

    Henderson James Cleaves

  5. Astronomy Department, University of Massachusetts, Amherst, Massachusetts, USA

    William M. Irvine

  6. Dépt. Sc. de la Terre et de l’Atmosphère, Université du Québec, Montréal, Montreal, Québec, Canada

    Daniele Pinti

  7. Centre National d'Etudes Spatiale (CNES) DPI/E2U, Paris CX, France

    Michel Viso

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© 2014 Springer-Verlag Berlin Heidelberg

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Irvine, W.M. (2014). Methylidyne Cation. In: Amils, R., et al. Encyclopedia of Astrobiology. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-27833-4_1809-4

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  • DOI: https://doi.org/10.1007/978-3-642-27833-4_1809-4

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  • Publisher Name: Springer, Berlin, Heidelberg

  • Online ISBN: 978-3-642-27833-4

  • eBook Packages: Springer Reference Physics and AstronomyReference Module Physical and Materials ScienceReference Module Chemistry, Materials and Physics

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