Results are presented from a pilot survey of 3.3 μm 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) ～ 1700. Targets were selected from IRAS, KAO, and ISO sources with previously observed PAH emission at longer wavelengths. AGB stars and PNe 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.
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机译：结果来自使用FLITECAM进行的行星状星云3.3μmPAH排放的试点调查，FLITECAM是一种旨在用SOFIA进行机载天文学的仪器。这些观测是在利克天文台3 m Shane望远镜在FLITECAM光谱模式的地面调试期间进行的。使用直接定型的KRS-5光栅提供的分辨力（R）〜1700。从IRAS，KAO和ISO光源中选择目标，这些光源以前曾观察到较长波长下的PAH发射。 C / O比<1的AGB星和PNe也被添加到目标列表中，以测试PAH检测阈值。总共观察到20个物体。在20个观测目标中有11个检测到PAH排放。
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