Single Photon Infrared Emission Spectroscopy of the Gas Phase Pyrene Cation: Support for a Polycyclic Aromatic Hydrocarbon Origin of the Unidentified Infrared Emission Bands
Journal Article
·
· Physical Review Letters
We report the first observation of infrared emission from a gaseous ionic polycyclic aromatic hydrocarbon (PAH), the pyrene cation, over the range of wavelengths spanned by the ubiquitous interstellar unidentified infrared emission bands (UIRs). The complete set of pyrene cation IR emissions is observed, with relative intensities consistent with astrophysical observations, supporting the proposal that ionized PAHs are major contributors to the UIR bands. Additionally, unidentified features possibly arising from dehydrogenated PAH species are noted in the spectrum.
- Sponsoring Organization:
- (US)
- OSTI ID:
- 40204670
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 25 Vol. 86; ISSN 0031-9007
- Publisher:
- The American Physical Society
- Country of Publication:
- United States
- Language:
- English
Similar Records
Direct photodissociation of CH bonds in polycyclic aromatic hydrocarbons - Implications for the infrared emission bands
Polycyclic aromatic hydrocarbons and the unidentified infrared emission bands: Auto exhaust along the Milky Wayexclamation
INFRARED SPECTRA OF ISOLATED PROTONATED POLYCYCLIC AROMATIC HYDROCARBON MOLECULES
Journal Article
·
Tue Aug 01 00:00:00 EDT 1989
· Astrophysical Journal; (USA)
·
OSTI ID:5556404
Polycyclic aromatic hydrocarbons and the unidentified infrared emission bands: Auto exhaust along the Milky Wayexclamation
Journal Article
·
Thu Feb 28 23:00:00 EST 1985
· Astrophys. J., Lett. Ed.; (United States)
·
OSTI ID:5773044
INFRARED SPECTRA OF ISOLATED PROTONATED POLYCYCLIC AROMATIC HYDROCARBON MOLECULES
Journal Article
·
Thu Nov 19 23:00:00 EST 2009
· Astrophysical Journal (Online)
·
OSTI ID:21378204