Вісник Астрономічної школи (Dec 2009)

Physical parameters of gaseous and dust atmospheres of three comets 9P/Tempel 1, 37P/Forbes and C2004 Q1 (Machholz)

  • K. I. Churyumov,
  • V. Afanasiev,
  • E. Picazzio,
  • V. V. Kleshchonok,
  • I. V. Lukyanyk,
  • V. Ponomarenko,
  • A. Baransky,
  • A. Almeida,
  • R. D. D. Costa,
  • L. S. Chubko

DOI
https://doi.org/10.18372/2411-6602.06.2141
Journal volume & issue
Vol. 6, no. 2
pp. 141 – 150

Abstract

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One of three explored comets 9P/Tempel 1 was the main target of space mission Deep Impact. We present the results of exploration of spectra of three comets 9P (Tempel 1), C2004 Q1 (Machholz) and 37P/Forbes observed in 2004-2005 at Observatorio do Pico dos Dias (Brazil) and at Mount Pastukhov and Peak Terskol (Russia). The detailed identification of emission lines in spectra of comet 37P/Forbes was made. BVRI photometry comets 9P /Tempel 1) and C2004 Q1 (Machholz) was carried out. Physical parameters of C_2, C_3 and CN gases in the near nucleus region of the cometary atmospheres of comets 9P (Tempel 1), C2004 Q1 (Machholz) and 37P/Forbes were determined. Presence of cometary luminescence continuum (non-solar origin) in the spectra of three comets are confirmed.