A Spectral ATLAS of comet 122P/de Vico: A Tapestry of Linelists And Spectra

Details A Spectral ATLAS of comet 122P/de Vico: A Tapestry of Linelists And Spectra A Spectral ATLAS of comet 122P/de Vico: A Tapestry of Linelists And Spectra

Nov 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001dps....33.2013c&link_type=abstract

American Astronomical Society, DPS Meeting #33, #20.13; Bulletin of the American Astronomical Society, Vol. 33, p.1076

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Scientific paper

On 3 and 4 October, 1995, we obtained high spectral resolving power (R=λ /Δ λ = 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 3830Å--10192Å. The spectra from 3830--5776Å are continuous; from 5777--10192Å there are increasing interorder gaps. The comet was at a heliocentric distance of 0.66 au and a geocentric distance of 1.0 au. 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 12,358 emission lines and have located another 4095 lines which we cannot identify. We will 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. This work was supported by NASA Grant NAG5-9003.

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