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 Title: CCH AND HNC IN PLANETARY NEBULAE Author(s): Schmidt, Deborah Contributor(s): Ziurys, Lucy M. Subject(s): Astronomy Abstract: A survey of CCH and HNC has been conducted towards a sample of ten planetary nebulae of varying ages using the Submillimeter Telescope (SMT) of the Arizona Radio Observatory (ARO) at 1 mm. The N = 3 $rightarrow$ 2 transition of CCH at 262 GHz and the J = 3 $rightarrow$ 2 line of HNC at 272 GHz were observed using the ALMA Band 6 receiver at the SMT. The molecules were detected in most of the sources where HCN and HCO$^+$ had been identified in a previous survey. Molecular abundances for CCH and HNC have been determined in these nebulae, as well as [HCN]/[HNC] ratios. These observations further support the notion that the chemistry in planetary nebulae remains active despite the ultraviolet radiation field from the central white dwarf star. Issue Date: 24-Jun-15 Publisher: International Symposium on Molecular Spectroscopy Citation Info: ACS Genre: CONFERENCE PAPER/PRESENTATION Type: Text Language: English URI: http://hdl.handle.net/2142/79287 Date Available in IDEALS: 2016-01-05
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