Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-03T08:32:34.711Z Has data issue: false hasContentIssue false

Gas Production Rates in Comets

Published online by Cambridge University Press:  07 August 2017

A.A. De Almeida*
Affiliation:
Department of Astronomy, Inst. of Astronomy and Geophysics, University of São Paulo C.P. 9638, CEP 01065, São Paulo - Brazil

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Emission fluxes of CN, C2 and C3 carbon- bearing molecular species observed in the coma of comets Bennett (1969i ≡ 1970II), West (1975n = 1976VI), P/Halley (1982i), Hartley-Good (1985l) and Bradfield (1987s) are analysed in the framework of Haser model. CN, C2 and C3 production rates are determined using recently derived fluorescence efficiencies. The dependence of CN, C2 and C3 production rates on the heliocentric distance and the possible correlations among these radicals is studied and briefly discussed.

Type
Solar System
Copyright
Copyright © Kluwer 1992 

References

REFERENCES

Almeida, A.A., Singh, P.D. and Burgoyne, C.M. (1989) ‘Haser Model CN, C2 and C3 Production Rates in Some Comets’, Earth, Moon and and Planets 47, 1531.CrossRefGoogle Scholar
Almeida, A.A. (1991), ‘An Analysis of the Spectrophotometric and Photometric Observations of Comets 1967II, 1968I, 1968V, and 1968VI’, Earth, Moon and Planets (in press).Google Scholar
Babu, G.S.D. and Saxena, P.P. (1972), ‘Spectrophotometry of Comet Bennett’, Bull. Astron. Inst. Czech 23, 346349.Google Scholar
Cochran, A.L. (1985), ‘A Re-Evaluation of the Haser Model Scale Lengths for Comets’, Astron. J. 90, 26092614.Google Scholar
Goraya, P.S., Sanwal, B.B., Rautela, B.S., Duggal, H.K. and Malhi, J.S. (1989a), ‘Spectrophotometry of P/Halley (1982i)’, Earth, Moon and Planets 44, 243249.Google Scholar
Goraya, P.S., Rautela, B.S., Sanwal, B.B., Gupta, S.K., Duggal, H.K., and Malhi, J.S. (1989b), Spectrophotometric Study of Periodic Comet Halley (1982i)'Earth, Moon and Planets 45, 1727.CrossRefGoogle Scholar
Konno, I. and Wyckoff, S. (1989), ‘Atomic and Molecular Abundances in Comet Giacobini-Zinner’, Adv. Space Res. 9, 163168.Google Scholar
Ojha, D.K. and Joshi, S.O. (1989), ‘Spectrophotometry of Comet Bradfield (1987s)’, Earth, Moon and Planets 44, 15.CrossRefGoogle Scholar
Rautela, B.S. and Sanwal, B.B. (1988), ‘Spectrophotometric Study of Comet Bradfield (1987s)’, Earth, Moon and Planets 43, 221225.Google Scholar
Rautela, B.S., Goraya, P.S., Sanwal, B.B., and Gupta, S.K. (1989), ‘Spectrophotometry of Comet Hartley-Good (1985l)’, Earth, Moon and Planets 44, 233242.Google Scholar
Sekanina, Z. (1982), ‘The Problem of Split Comets in Review’ in Wilkening, L.L. (ed.), Comets, The University of Arizona Press, Tucson, pp. 251287.Google Scholar
Sivaraman, K.R., Babu, G.S.D., Bappu, M.K.V. and Parthasarathy, M. (1979), ‘Emission band and continuum photometry of Comet West (1975n)-I. Heliocentric dependence of the flux in the emission bands and the continuum’, Mon. Not. R. ast. Soc. 189, 897906.Google Scholar