A Survey of 3.3 Micron PAH Emission in Planetary Nebulae

Abstract

Results are presented from a pilot survey of 3.3 micron PAH emission from planetary nebulae using FLITECAM, an instrument intended for airborne astronomy with SOFIA. The observations were made during ground-based commissioning of FLITECAM's spectroscopic mode at the 3-m Shane telescope at Lick Observatory. Direct-ruled KRS-5 grisms were used to give a resolving power (R)~1,700. Targets were selected from IRAS, KAO and ISO sources with previously observed PAH emission at longer wavelengths. AGB stars and PN with C/O ratios < 1 were also added to the target list in order to test PAH detection thresholds. In all, 20 objects were observed. PAH emission was detected in 11 out of 20 observed targets.

arXiv comment8 pages, 2 tables, 4 figures, accepted to ApJ

References in corpus (7)

• The rich 6 to 9 um spectrum of interstellar PAHs
• The profiles of the 3 to 12 $\mu$m PAH features
• The unusual hydrocarbon emission from the early carbon star HD 100764: The connection between aromatics and aliphatics
• Three-micron spectra of AGB stars and supergiants in nearby galaxies
• "PAH" emission bands in selected planetary nebulae: a study of the behaviour with gas phase C/O ratio
• Using Narrow Band Photometry to Detect Young Brown Dwarfs in IC348
• Using Narrow Band Photometry to Classify Stars and Brown Dwarfs

Cited by in corpus (10)

• The Co-ordinated Radio and Infrared Survey for High-Mass Star Formation - II. Source Catalogue
• The Iron abundance in Galactic Planetary Nebulae
• A disk inside the bipolar planetary nebula M2-9
• Rings and Halos in the Mid-Infrared: The Planetary Nebulae NGC 7354 and NGC 3242
• A search for hydrogenated fullerenes in fullerene-containing planetary nebulae
• AKARI/IRC Near-Infrared Spectral Atlas of Galactic Planetary Nebulae
• Line Formation of Raman-Scattered He II $\lambda$ 4851 in an Expanding Spherical H I Shell in Young Planetary Nebulae
• PAH and nbL Features Detection in Planetary Nebulae NGC 7027 and BD +303639 with TIRCAM2 Instrument on 3.6m DOT
• Discovery of Raman-scattered He II $\lambda$6545 in the Planetary Nebulae NGC 6886 and NGC 6881
• A Survey of 3 to 5.4 Micron Emission From Planetary Nebulae using SOFIA/FLITECAM