Single photon infrared emission spectroscopy of the gas phase pyrene cation: Support for a polycyclic aromatic hydrocarbon origin of the unidentified infrared emission bands

H. S. Kim, D. R. Wagner, R. J. Saykally

Research output: Contribution to journalArticlepeer-review

76 Scopus citations

Abstract

The infrared emissions from a gaseous ionic polycyclic aromatic hydrocarbon (PAH) over the ubiquitous interstellar unidentified infrared emission band (UIR) range were analyzed. The pyrene cation infrared emissions with relative intensities consistent with astrophysical observations were observed. The measured spectrum of the pyrene cation agrees with the major UIR feature intensities thus providing support for the PAH hypothesis.

Original languageEnglish (US)
Pages (from-to)5691-5694
Number of pages4
JournalPhysical review letters
Volume86
Issue number25
DOIs
StatePublished - Jun 18 2001

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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