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 Title: PURE ROTATIONAL SPECTRUM OF CN+ Author(s): Thorwirth, Sven Contributor(s): Asvany, Oskar ; Schlemmer, Stephan ; Salomon, Thomas ; Schreier, Phillip Subject(s): Ions Abstract: The pure rotational spectrum of the elusive CN$^+$ cation has been observed for the first time using the cryogenic ion trap apparatus Coltrap by applying an action spectroscopy scheme. For the $^{12}$C$^{14}$N$^+$ species, the three lowest rotational transitions have been observed each of which exhibits hyperfine structure from the presence of the $^{14}$N nucleus. The rare $^{12}$C$^{15}$N$^+$ isotopolog has been studied up to the $J=4-3$ transition. The observations conclusively confirm CN$^+$ to occupy a $^1\Sigma^+$ electronic ground state. Given the ubiquity of the CN radical in space, CN$^+$ is an appealing candidate for future radio astronomical searches. Issue Date: 2019-06-19 Publisher: International Symposium on Molecular Spectroscopy Genre: Conference Paper / Presentation Type: Text Language: English URI: http://hdl.handle.net/2142/104231 DOI: 10.15278/isms.2019.WF02 Rights Information: Copyright 2019 Sven Thorwirth Date Available in IDEALS: 2019-07-152020-01-25
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