Abstract
Due to the outstanding brightness of Comet Hale-Bopp measurements of water production rates were possible over a wide range of heliocentric distances (up to 5 AU). A variety of observing techniques have been used, including radio observations, IR- and UV-measurements. The H2O-production of a comet is closely connected with the energy balance and the composition of its surface. By comparing measured and calculated rates it is possible to derive properties of the nucleus. The results of this study demonstrate the importance of seasonal effects and show that a low thermal conductivity enhances the water production rate. The observations can be matched with a relatively low, lunar-like thermal conductivity. A lower size limit for the nucleus of Hale-Bopp is derived.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Benkhoff, J. and Huebner, W.F.: 1995, ‘Influence of the Vapor Flux on Temperature, Density, and Abundance Distributions in a Multicomponent, Porous, Icy Body’, Icarus 114, 348–354.
Bockelée-Morvan, D. and Rickman, H.: 1998, ‘C/1995 01 (Hale-Bopp) Gas Production Curves and their Interpretation’, Proceedings of the First Intern. Conf. on Comet Hale-Bopp, Tenerife.
Coloni, P., Gérard, E., Crovisier, J., and Bockelée-Morvan, D.: 1998, ‘Observations of the OH Radicals in Comet C/1995 Ol (Hale-Bopp) with the Nancy Radio Telescope’, Proceedings of the First Intern. Conf. on Comet Hale-Bopp, Tenerife.
Crovisier, J., Leech, K., Bockelée-Morvan, D., Brooke, T.Y., Hanner, M.S., Altieri, B., Keller, H.U., and Lellouch, E.: 1997, ‘The Spectrum of Comet Hale-Bopp (C/1995 01) Observed with the Infrared Space Observatory at 2.9 AU from the Sun’, Science 275, 1904–1907.
Crovisier, J.: 1998, ‘Infrared Observations of Volatile Molecules in Comet Hale-Bopp” Proceedings of the First Intern. Conf. on Comet Hale-Bopp Tenerife.
Enzian, A., Klinger, J., and Cabot, H.: 1998, ‘Simulation of the water and carbon monoxide of comet Hale-Bopp using a quasi 3D nucleus model’, Planet. Space Sci. 46, 851–858.
Jorda, L., Rembor, K., Lecacheux, J., Colom, P., Colas, F., Frappa, E., and Lara, L.M.: 1998, ‘The Rotational Parameters of Hale-Bopp (C/1995 O1) from Observations of the Dust Jets at Pic du Midi Observatory’, Earth Moon and Planets, in press.
Prialnik, D., Egozi, U., Bar-Nun, A., Podolak, M., and Greenzweig, Y.: 1993, ‘On Pore Size and Fracture in Gas-Laden Comet Nuclei’, Icarus 106, 499–507.
Weaver, H.A., Feldman, P.D., A’hearn, M.F., Arpigny, C., Brandt, J.C., Festou, M.C., Haken, M., McPhate, J.B., Stern, S.A., and Tozzi, G.P.: 1997, ‘The Activity and Size of the Nucleus of Comet Hale-Bopp’, (C/1995 01) Science 275, 1900–1904.
Weaver, H.A., Feldman, P.D., A’hearn, M.F., Arpigny, C., Brandt, J.C., and Stern, S.A.: 1998, ‘Hubble Space Telescope Observations of Comet Hale-Bopp’, Proceedings of the First Intern. Conf on Comet Hale-Bopp, Tenerife.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1999 Springer Science+Business Media Dordrecht
About this paper
Cite this paper
Kührt, E. (1999). H2O-Activity of Comet Hale-Bopp. In: Altwegg, K., Ehrenfreund, P., Geiss, J., Huebner, W.F. (eds) Composition and Origin of Cometary Materials. Space Science Series of ISSI, vol 8. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4211-3_7
Download citation
DOI: https://doi.org/10.1007/978-94-011-4211-3_7
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-5830-8
Online ISBN: 978-94-011-4211-3
eBook Packages: Springer Book Archive