Detection of the carbon monoxide ion (CO+) in the interstellar medium and a planetary nebula

William B. Latter, Christopher K. Walker, Philip R. Maloney

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Abstract

We report detection of the carbon monoxide ion (CO+) in the interstellar medium (M17SW) and a planetary nebula (NGC 7027). These detections are based on observations of three millimeter and submillimeter transitions in M17SW and one in NGC 7027. Chemical models suggest that CO+ should be most abundant where complex molecules are least likely to be present. In our search for CO+ we therefore minimized the chance of confusion while maximizing the probability of detection by observing regions whose chemistry is dominated by the effects of ultraviolet radiation.

Original languageEnglish (US)
Pages (from-to)L97-L100
JournalAstrophysical Journal
Volume419
Issue number2 PART 2
DOIs
StatePublished - Dec 20 1993

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Keywords

  • ISM: individual (M17SW)
  • ISM: molecules
  • Molecular processes
  • Planetary nebulae: individual (NGC 7027)

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Space and Planetary Science

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