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Non-gravitational forces and masses of some long-period comets. The cases of Hale-Bopp and Hyakutake

Published online by Cambridge University Press:  06 April 2010

Andrea Sosa  and
Julio A. Fernández
Andrea Sosa
Affiliation:
Departamento de Astronomía, Facultad de Ciencias, Igua 4225, 11400, Montevideo, Uruguay email: [email protected], [email protected]
Julio A. Fernández
Affiliation:
Departamento de Astronomía, Facultad de Ciencias, Igua 4225, 11400, Montevideo, Uruguay email: [email protected], [email protected]
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Abstract

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By means of a simple non-gravitational force model of the cometary nucleus, which relies on the observed light curves assumed to be a good representation of the water sublimation rate, we estimate the masses of a sample of long-period comets (LPCs).

A critical issue of our method is the assumption of a correlation between visual heliocentric magnitudes and water production rates. This is a necessary assumption because of the sparse observational data of gas production rates (with the exception of very few comets like Hale-Bopp or Hyakutake). In this regard we present here a new correlation for LPCs. We also present the preliminary results for the masses of comets Hale-Bopp and Hyakutake.

Keywords

Comets: generalmethods: analyticaldata analysis
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 5 , Symposium S263: Icy Bodies of the Solar System , August 2009 , pp. 85 - 88
Copyright
Copyright © International Astronomical Union 2010

References

Farnham, T. L. & Cochran, A. L. 2002, Icarus, 160, 398CrossRefGoogle Scholar
Festou, M. 1986, in: Proc. Asteroids, Comets, Meteors 1985Google Scholar
Jorda, L., Crovisier, J., & Green, D. W. E. 2008, in: Proc. Asteroids, Comets, Meteors 2008Google Scholar
Marsden, B. G., Sekanina, Z., & Yeomans, D. K. 1973, AJ, 78, 211CrossRefGoogle Scholar
Marsden, B. G. & Williams, G. V. 2008, Catalogue of Cometary Orbits, 17th ed., Smithsonian Astrophysical ObservatoryGoogle Scholar
Rickman, H. 1986, in: ESA SP 249Google Scholar
Rickman, H. 1989, Adv. Sp. Res., 9, 59CrossRefGoogle Scholar
Rickman, H., Kamél, L., Festou, M., & Froeschlé, C. 1987, in: ESA SP 278Google Scholar
Rickman, H., Festou, M. C., Tancredi, G., & Kamél, L. 1991, in: Proc. Asteroids, Comets, Meteors 1991, p. 509Google Scholar
Sagdeev, R. Z., Elyasberg, P. E., & Moroz, V. L. 1987, Sov. Astron. Lett., 13, 259Google Scholar
Sosa, A. & Fernández, J. A. 2009, MNRAS, 393, 192CrossRefGoogle Scholar
Szutowicz, S. & Rickman, H. 2006, Icarus, 185, 223CrossRefGoogle Scholar
Szutowicz, S., Królikowska, M., & Sitarski, G. 2002a, Earth, Moon and Planets, 90, 119CrossRefGoogle Scholar
Szutowicz, S., Królikowska, M., & Sitarski, G. 2002b, in: Proc. Asteroids, Comets, Meteors 2002Google Scholar
Whipple, F. L. 1950, AJ, 111, 375CrossRefGoogle Scholar