Spectral line identification of Comet Halley in March-April 1986

Details Spectral line identification of Comet Halley in March-April 1986 Spectral line identification of Comet Halley in March-April 1986

Jun 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990acaps..10...91w&link_type=abstract

(Acta Astrophysica Sinica, vol. 10, no. 1, 1989, p. 91-95) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 14, June 19

Astronomy and Astrophysics

Astrophysics

Halley'S Comet, Line Spectra, Telescopes, Spectral Resolution, Ultraviolet Radiation

Scientific paper

In March-April 1986, when Comet Halley was between 1 and 1.5 AU from the sun, the 1-m telescope of Yunnan Observatory was used to obtain long-slit spectra at a dispersion of 165 A/mm and with a resolution better than 7 A. The results of line identification on six of the plates at 3000-5100 A are given here. The main lines are emission lines of the molecules CN, C2, C3, CH, NH, and OH, while NH2, CH(+), N, and N2CO lines are probably present also. The appearance of the OH (3090-A) line shows that conditions at Yunnan Observatory are favorable for UV observations.

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