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dc.creatorMcCarthy, M. C.en_US
dc.creatorGrabow, Jens-Uween_US
dc.creatorTravers, Michael J.en_US
dc.creatorChen, Weien_US
dc.creatorGottlieb, C. A.en_US
dc.creatorThaddeus, P.en_US
dc.date.accessioned2006-06-15T19:11:45Z
dc.date.available2006-06-15T19:11:45Z
dc.date.issued1998en_US
dc.identifier1998-WH-11en_US
dc.identifier.urihttp://hdl.handle.net/1811/19174
dc.descriptionAuthor Institution: Harvard-Smithsonian Center for Astrophysics and Division of Engineering and Applied Sciencesen_US
dc.description.abstractThe linear cyanopolyynes $HC_{15}N$ and $HC_{17}N$ were detected in the laboratory by Fourier-transform microwave spectroscopy. Enough rotational lines of each species were measured in the 5-11 GHz frequency range so that precise values for the rotational and centrifugal distortion constants can be determined and the entire rotational spectra of both molecules predicted to high accuracy (i.e., better than $1 km s^{-1}$ in equivalent radial velocity). Although there is a nearly constant decrement in line intensity from $HC_{3}N$ to $HC_{9}N$ of about seven, the decrement decreases by at least a factor of two on reaching $HC_{17}N$. As a result the lines of $HC_{17}N$ are nearly an order of magnitude stronger than predicted by extrapolation from the shorter cyanopolyynes.en_US
dc.format.extent93631 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleLABORATORY DETECTION OF THE CARBON CHAINS $HC_{15}N AND HC_{17}N$en_US
dc.typearticleen_US


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