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arxiv astro-ph/0202038 v1 pith:UL4YC474 submitted 2002-02-01 astro-ph

A High Spectral Resolution Atlas of Comet 122P/de Vico

classification astro-ph
keywords spectracometlineshighvicoatlasdistanceemission
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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On 3 and 4 October, 1995, we obtained high spectral resolving power (R=\lambda/\Delta\lambda = 60,000) observations of comet 122P/de Vico using the 2DCoude cross-dispersed echelle spectrograph on the 2.7-m telescope of McDonald Observatory. The spectra cover the wavelength range from 3830A--10192A. The spectra from 3830--5776A are continuous; from 5777--10192A there are increasing interorder gaps. The comet was at a heliocentric distance of 0.66au and a geocentric distance of 1.0au. Comet de Vico has a very high gas-to-dust ratio and the spectra have excellent signal/noise. These two factors combined to yield spectra with a large number of emission lines. We have collected laboratory molecular line lists and have used these line lists in order to identify as many of the detected lines as possible. We have identified 12,219 emission lines and have located another 4,055 lines which we cannot identify. We present representative spectra and identifications along with a description of our plans to make these spectra and identifications available to the community. This atlas should prove a valuable tool for future studies of comets.

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