IAU Colloquium 168
Cometary Nuclei in Space and Time

Nanjing, China
May 18-22, 1998

Electronically-submitted Abstracts of Participants


The Observations of Comet Hale-Bopp on Molecule CO at 2.6mm Wavelength
C.C. PEI, Q. ZENG, R.Q. MAO, Y.F. CHEN, F. HAN, Y.L. ZHOU, C.M. LEI,and Z.C. XU, Purple Mountain Observatory, Academia Sinica, Nanjing 210008, China

By using the 13.7m radio telescope of Purple Mountain Observatory, the CO J=1-0 rotational transition spectra(115.27120 GHz) of Comet Hale-Bopp were taken from Dec. 10,1996 to Jan. 2,1997 and from Mar. 25 to Apr. 4,1997. From the observational spectra, the fact of the blue shift of the observed geocentric velocities from the corresponding anticipated geocentric velocities is noticed and the production rate of CO molecule has been roughly estimated.



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