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Earth, Moon, and Planets

, Volume 63, Issue 3, pp 179–185 | Cite as

The 1991 outburst of Comet P/Metcalf-Brewington: a study of the light curve

  • Mark R. Kidger
Article

Abstract

The light curve of the outburst of Comet P/Metcalf-Brewington (1991 I) is investigated. The parameters of the light curve are quite uncertain as it may be fitted both in terms of variation with heliocentric distance and exponential decay with time however, after maximum a empirical fit ofm1 = 4.1 + 5 log Delta + 14.8 logr gives a good fit to the data. The absolute magnitude brightened at least 11 magnitudes in outburst. The outburst is most plausibly caused by the release of micron sized grains as, were the outbust due to dust emission, it would imply the expulsion of a large fraction of the total mass of the nucleus.

Keywords

Dust Total Mass Large Fraction Exponential Decay Light Curve 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. Brewington, H. J.: 1991,IAUC 5155.Google Scholar
  2. Cruikshank, D. P., Hartmann, W. K., and Tholen, D. J.: 1985,Nature 315, 122.Google Scholar
  3. Delsemme, A. H.: 1987,Symposium on the Diversity and Similarity of Comets, ESA SP-278, pp. 19–30.Google Scholar
  4. Giraud, E, and Smette, A.: 1991,IAUC 5206.Google Scholar
  5. Grillmair, C. and McNaught, R. H.: 1991,IAUC 5162.Google Scholar
  6. Hughes, D. W.: 1990,QJRAS 31, 69.Google Scholar
  7. Hughes, D. W.: 1991, MNRAS251, 26P.Google Scholar
  8. Kresák, L. and Kresákova, M.: 1987,Symposium on the Diversity and Similarity of Comets, ESA SP-278, pp. 37–42.Google Scholar
  9. Marsden, B. G.: 1982,Catalogue of Cometary Orbits 1992, Fourth Edition.Google Scholar
  10. Marsden, B. G.: 1991,IAUC 5160.Google Scholar
  11. Marsden, B. G. and Williams, G. V.: 1992,Catalogue of Cometary Orbits 1992, Seventh Edition.Google Scholar
  12. Nakano, S.; 1991, Minor Planet Circular 18597.Google Scholar
  13. Panther, R.: 1991,The Astronomer 27, 210.Google Scholar
  14. Rickman, H.: 1989,Advances in Space Research 9, 59.Google Scholar
  15. Tanaka, M.: 1991,IAUC 5168.Google Scholar

Copyright information

© Kluwer Academic Publishers 1993

Authors and Affiliations

  • Mark R. Kidger
    • 1
  1. 1.Instituto de Astrofisica de CanariasLa LagunaSpain

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