The rich spectrum of circumstellar PAHs.

Details The rich spectrum of circumstellar PAHs. The rich spectrum of circumstellar PAHs.

Nov 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996a%26a...315l.369b&link_type=abstract

Astronomy and Astrophysics, v.315, p.L369-L372

Astronomy and Astrophysics

Astrophysics

92

Stars: Agb And Post-Agb, Stars: Mass Loss, Dust, Planetary Nebulae, Infrared: Stars

Scientific paper

We present observations taken with the Short Wavelength Spectrometer (SWS) on board the Infrared Space Observatory (ISO) of three evolved C-rich stars, the post-AGB star HR 4049 and two planetary nebulae, IRAS 21282+5050 and NGC 7027. The spectra are dominated by the well-known infrared emission bands, attributed to Polycyclic Aromatic Hydrocarbons (PAHs). The SWS spectra for the first time allow a complete overview of the richness of the PAH spectrum with high spectral resolution and high S/N. We present an inventory of the spectral features in the 2.4-17μm wavelength window.

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