EXPLORATION OF THE COMET 19P/BORRELLY SPECTRA, OBTAINED WITH THE MPFS AND SCORPIO OF 6-M TELESCOPE ON AUG., 2001

摘要

Periodic comet 19P/Borrelly was a cosmic target mission by the New Millenium DS-1 in September 23, 2001. Spectra and monochromatic images of comet 19P/Borrelly was obtained with the Multi Pupil Fiber Spectrograph (MPFS) installed in the Prime Focus of the 6-m telescope of the SAO of the RAS (Nizhny Arkhyz) on August 12/13 and 14/15, 2001, and with Spectral Camera with Optical Reducer for Photometrical and Interferometrical Observations (SCORPIO) installed in the Prime Focus of the 6-m telescope of the SAO of the RAS on August 15/16 and 16/17. The observations were made ～ 40 days before the New Millenium DS-1 probe approach with the comet nucleus. On the basis of observations obtained with MPFS and SCORPIO the monochromatic images and the spectral maps of the near nucleus region of the comet were built. Identification of the emission lines in the spectrum of comet 19P/Borrely was made. Some physical parameters of neutral gas in the near nucleus region of the comet were determined.