Spectroscopic observations of comet P/Brorsen-Metcalf in the 3500-7550 A wavelength region

Details Spectroscopic observations of comet P/Brorsen-Metcalf in the 3500-7550 A wavelength region Spectroscopic observations of comet P/Brorsen-Metcalf in the 3500-7550 A wavelength region

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993p%26ss...41..669k&link_type=abstract

Planetary and Space Science (ISSN 0032-0633), vol. 41, no. 9, p. 669-675

Astronomy and Astrophysics

Astronomy

5

Emission Spectra, Energy Levels, Imaging Techniques, Phase Transformations, Rotational States, Spectroscopic Analysis, Spectrum Analysis, Astronomical Spectroscopy, Carbon, Carbon Compounds, Echelle Gratings, Hydroxyl Radicals, Nitrogen, Nitrogen Compounds, Oxygen, Sodium, Water

Scientific paper

The spectroscopic observations of comet P/Brorsen-Metcalf were made at the high-latitude station 'Terksol' of the Main Astronomical Observatory of Ukraine in August 1989. The spectra were taken using the image intensifier 'Topaz' with the UMK-91VM image tube as the basic unit. The spectra cover the wavelength region from 3500 to 7550 A at resolution ranging from 1.8 to 7.7 A. We carried out the identification of 329 spectral features in the P/Brorsen-Metcalf spectra. We found emissions of CN, C2, (12)C(13)C, CH, C3, NH2, Na, O(I) neutrals, and N2(+), OH(+), CO(+), CH(+), CO2(+), H2O(+) ions in our spectra. We detected the transitions from the rotational levels up to J(double prime) = 99 for the Delta nu = 0 C2 sequence for the first time. We found five features which coincide with the wavelength of laboratory band heads of the Swan 'tail' bands as well.

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