Abstract
Monitoring of the near-nucleus activity of C/1995 O1 (Hale-Bopp) began in Teide Observatory in August 1995. During 1996 the comet was observed on 72 nights between March 26 and November 13. A permanent fan structure was observed towards the north during the whole period of observation. The position angle of the axis of this fan was measured and its variations with time were used to determine the position of the North Pole of the cometary nucleus.
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References
Hale, A. and Bopp, T.: 1995, ‘C/1995 O1 (Hale–Bopp)’, IAU Circular No. 6187.
Jorda, L., Lecacheux, J., Colas, F., Colom, P., Frappa, E., and Rembor, K.: 1998, ‘The Rotational Parameters of Hale–Bopp from Observations of the Dust Jets at Pic du Midi Observatory’, Earth, Moon, and Planets 77, 167–180.
Kidger, M. R., Serra–Ricart, M., Bellot Rubio, L. R., and Casas, R.: 1996, ‘Evolution of a Spiral Jet in the Inner Coma of Comet Hale–Bopp (1995 O1)’, Astrophysical Journal 461, L119.
Kidger, M. R., Serra-Ricart, M., Denicoló, G., Torres-Chico, R., Bellot Rubio, L. R., Casas, R., Gómez, A., Licandro, J., Oscoz, A., Santos–Sanz, P., and Jorda, L.: 1998, ‘The Near-Nucleus Morphology and Photometric Light Curve of C/1995 O1 (Hale–Bopp)’, Astronomical Journal, submitted.
Landau, L. D. and Lifchitz, E. M.: 1976, ‘Course of Theoretical Physics’, 3rd edition, Pergamon, Oxford.
Licandro, J., Bellot Rubio, L. R., Boehnhardt, H., Casas, R., Goetz, B., Gómez, A., Jorda, L., Kidger, M. R., Osip, D., Sabalisk, N., Santos–Sanz, P., Serra-Ricart, M., Tozzi, G. P., and West, R.: 1998, ’The Rotation Period of C/1995 O1 (Hale–Bopp)’, Astrophysical Journal Letters, submitted.
Matthews, H, Holland, W., Meier, R., and Jewitt, D.: 1997, ‘Comet C/1995 O1 (Hale–Bopp)’, IAU Circulars No. 6609.
Press W. H., Flannery B. P., Teukolsky S. A., and Vetterling W. T.: 1986, Numerical Recipes, Cambridge University Press.
Samarashina, N., Mueller, B., and Belton, J.: 1998, ‘Coma Morphology and Constraints on the Rotation of Comet Hale–Bopp (C/1995 O1)’, Earth, Moon, and Planets 78, in press.
Sekanina, Z.: 1987, ‘Anisotropic Emission from Comets: Fans versus Jets. I. Concept and Modelling’, in Symposium on the Diversity and Similarity of Comets, 6–9 April 1987, Brussels, Belgium, ESA SP-278, pp. 315–322.
Sekanina, Z.: 1997–1999, ‘A Determination of the Nuclear Size of Comet Hale–Bopp (C/1995 O1)’, Earth, Moon, and Planets 77, 147–153.
Sekanina, Z.: 1998, ‘Modeling the Diurnal Evolution of a Dust Feature in Comet Hale–Bopp (C/1995 O1)’, Astroph. J. Lett. 494, L121.
Sekanina, Z. and Boehnhardt, H.,: 1997–1999, ‘Dust Morphology of Comet Hale–Bopp (C/1995 O1). II. Introduction of a Working Model’, Earth, Moon, and Planets 78, in press.
Schleicher, D., Millis, R., Farnham, T., and Lederer,: 1997, ‘Results from Narrowband Photometry of Comet Hale–Bopp (1995 O1)’, Bull. American Astron. Soc., DPS meeting 29, 32.04.
Weaver, H., Feldman, P., A'Hearn, M., Arpigny, C., Brandt, J., Festou, M., Haken, M., McPhate, J., Stern, S., and Tozzi, G.P.: 1997, ‘The Activity and Size of the Nucleus of Comet Hale–Bopp’, Science 275, 1900–1904.
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Licandro, J., Bellot Rubio, L.R., Casas, R. et al. The Spin Axis Position of C/1995 O1 (Hale–Bopp). Earth, Moon, and Planets 77, 199–206 (1997). https://doi.org/10.1023/A:1006291015391
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DOI: https://doi.org/10.1023/A:1006291015391