The infrared emission bands. III - Southern IRAS sources

Details The infrared emission bands. III - Southern IRAS sources The infrared emission bands. III - Southern IRAS sources

Jun 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989apj...341..246c&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 341, June 1, 1989, p. 246-269.

Astronomy and Astrophysics

Astronomy

141

Abundance, Aromatic Compounds, Infrared Astronomy Satellite, Infrared Spectra, Planetary Nebulae, Signal To Noise Ratios, Southern Sky, Wavelengths

Scientific paper

Airborne 5-8-micron spectra of southern IRAS sources are presented which display the strong PAH emission features. The sources studied include those in a previous paper (Cohen et al, 1986) and NGC 6302, HR 4049, and CPD -56 deg 8032. A good correlation is found between the intensity ratio of the 7.7-micron feature relative to the FIR dust continuum and nebular C/O ratio, supporting a carbonaceous carrier for these emission features. In addition, a weak PAH band is detected near 5.2 microns in several sources.

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