OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

DETECTION OF THE $N=2\to 3$ ROTATIONAL TRANSITION OF ETHYNYL (CCH) IN $ORION^{*}$

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/11624

Show full item record

Files Size Format View
1981-RF-12.jpg 87.04Kb JPEG image Thumbnail of DETECTION OF THE $N=2\to 3$ ROTATIONAL TRANSITION OF ETHYNYL (CCH) IN $ORION^{*}$

Title: DETECTION OF THE $N=2\to 3$ ROTATIONAL TRANSITION OF ETHYNYL (CCH) IN $ORION^{*}$
Creators: Zuirys, L. M.; Saykally, R. J.; Plambeck, Richard L.; Erickson, N.
Issue Date: 1981
Publisher: Ohio State University
Abstract: The first laboratory detection of the ethynyl radical (CCH) in the gas phase was reported in 1979 by Saykally and $Evenson,^{1}$ who used far-infrared laser magnetic resonance to observe the $N = 6\rightarrow 7$ pure rotational transition of CCH in its $^{2}\sum $ ground state. A recent analysis of this spectrum has yielded an estimate of the centrifugal distortion constant. $D_{0}$, which enables us to predict all other rotational transitions with sufficient accuracy for radioastronomical searches. Using Erickson’s 200-300 GHz quasi-optical receiver at the Millimeter Wave Observatory of the University of Texas, we have detected the $N = 3 \rightarrow 2$ emission spectrum of CCH in several interstellar sources. Analysis of this spectrum in conjunction with $earlier^{2}$ astronomical results will be reported.
URI: http://hdl.handle.net/1811/11624
Other Identifiers: 1981-RF-12
Bookmark and Share