MOLECULAR EMISSION STRUCTURE IN THE RED RECTANGLE - SEQUENCE BANDS?

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2005

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Ohio State University

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We report high resolution (R≈37000) Integral Field spectroscopy of the central region (r<14,arcsec) of the Red Rectangle nebula surrounding HD 44179. The observations focus on the 5800,\AA\ emission feature, the bluest of the Red Rectangle Bands. We propose that the emission feature, widely believed to be a molecular emission band, is sequence structure emission from a molecule with an extended chromophore. We present model spectra for a range of PAH cations with elevated vibrational temperatures.

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Author Institution: School of Chemistry, University of Sydney, NSW 2006, Australia; Anglo-Australian Observatory, PO Box 296 Epping, NSW 1710, Australia

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http://hdl.handle.net/1811/30255

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Abstracts of OSU International Symposium on Molecular Spectroscopy 2000-2009