Weeding the Astrophysical Garden: Ethyl Cyanide

Details Weeding the Astrophysical Garden: Ethyl Cyanide Weeding the Astrophysical Garden: Ethyl Cyanide

Dec 2009

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009aspc..417..439d&link_type=abstract

Submillimeter Astrophysics and Technology: a Symposium Honoring Thomas G. Phillips ASP Conference Series, Vol. 417, proceedings

Astronomy and Astrophysics

Astrophysics

Scientific paper

It is well known that many, if not most, of the unidentified features in astrophysical spectra arise from relatively low lying excited vibrational and torsional states of a relatively small number of molecular species— the astrophysical weeds. It is also well known that the traditional quantum mechanical assignment and fitting of these excited state spectra is a formidable task, one that is made harder by the expected perturbations and interactions among these states. We have previously proposed an alternative fitting and analysis approach based on experimental, intensity calibrated spectra taken at many temperatures. In this paper we discuss the implementation of this approach and provide details in the context of one of these weeds, ethyl cyanide.

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