Details

Autor(en) / Beteiligte

• Peeters, Els

Titel

The PAH Hypothesis after 25 Years

Ist Teil von

• Proceedings of the International Astronomical Union, 2011-06, Vol.7 (S280), p.149-161

Ort / Verlag

Cambridge, UK: Cambridge University Press

Erscheinungsjahr

2011

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The infrared spectra of many galactic and extragalactic objects are dominated by emission features at 3.3, 6.2, 7.7, 8.6 and 11.2 μm. The carriers of these features remained a mystery for almost a decade, hence the bands were dubbed the unidentified infrared (UIR) bands. Since the mid-80's, the UIR bands are generally attributed to the IR fluorescence of Polycyclic Aromatic Hydrocarbon molecules (PAHs) upon absorption of UV photons – the PAH hypothesis. Here we review the progress made over the past 25 years in understanding the UIR bands and their carriers.