Hostname: page-component-cd9895bd7-dk4vv Total loading time: 0 Render date: 2024-12-23T10:35:50.221Z Has data issue: false hasContentIssue false
  • English
  • Français

Is the near-Earth asteroid 2000 PG3 an extinct comet?

Published online by Cambridge University Press:  01 August 2006

Pulat B. Babadzhanov  and
Iwan P. Williams
Pulat B. Babadzhanov
Affiliation:
Institute of Astrophysics, Dushanbe 734042, Tajikistan email:[email protected]
Iwan P. Williams
Affiliation:
Queen Mary University of London, E1 4NS, UK email:[email protected]
Rights & Permissions [Opens in a new window]

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.

The existence of an observed meteor shower associated with some Near-Earth Asteroid (NEA) is one of the few useful criteria that can be used to indicate that such an object could be a candidate for being regarded as an extinct or dormant cometary nucleus. In order to identify possible new NEA-meteor showers associations, the secular variations of the orbital elements of the NEA 2000 PG3, with comet-like albedo (0.02), and moving on a comet-like orbit, was investigated under the gravitational action of the Sun and six planets (Mercury to Saturn) over one cycle of variation of the argument of perihelion. The theoretical geocentric radiants and velocities of four possible meteor showers associated with this object are determined. Using published data, the theoretically predicted showers were identified with the night-time September Northern and Southern δ-Piscids fireball showers and several fireballs, and with the day-time meteor associations γ-Arietids and α-Piscids. The character of the orbit and low albedo of 2000 PG3, and the existence of observed meteor showers associated with 2000 PG3 provide evidence supporting the conjecture that this object may be of cometary nature.

Keywords

Near-Earth Asteroidsmeteoroid streamsmeteor showers
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 2 , Symposium S236: Near Earth Objects, our Celestial Neighbors: Opportunity and Risk , August 2006 , pp. 135 - 140
Copyright
Copyright © International Astronomical Union 2007

References

Babadzhanov, P.B. 1998, Celest. Mech. & Dynam. Astron. 69, 221CrossRefGoogle Scholar
Babadzhanov, P.B. 2001, A&A 373, 329Google Scholar
Babadzhanov, P.B. 2003, A&A 397, 319Google Scholar
Babadzhanov, P.B. & Obrubov, Yu.V. 1987, in: Ceplecha, Z., Pecina, P. (eds.) Interplanetary matter, Proc. 10th European Regional Astronomy Meeting of the IAU 2, p. 141Google Scholar
Babadzhanov, P.B. & Obrubov, Yu.V. 1992, Celest. Mech. & Dynam. Astron. 54, 111Google Scholar
Barabanov, S.I., Zenkovich, A.D., Mikisha, A.M., Smirnov, M.A 2001, in: Near-Earth Astronomy of the XXI Century, Proceedings of Conference, Zvenigorod 2001, May 21-25, Moscow, GEOS, p. 158Google Scholar
Cannon, E. 2001, Visual Meteor Showers, http://web.austin.utexas.edu/edcannon/aka-date.htmGoogle Scholar
Cook, A.F. 1973, in: Hemenway, C.L., Millman, P.M., Cook, A.F. (eds.), Evolutionary and Physical Properties of Meteoroids, NASA SP-319, Washington, D.C., p. 183Google Scholar
Fernandez, Y.R., Jewitt, D.C. & Shepard, S.S. 2001, Ap J 553: L197CrossRefGoogle Scholar
Fox, K., Williams, I.P. & Hughes, D.W. 1984, MNRAS 2108, 11PGoogle Scholar
Goryachev, N.N. 1937, Halphen's Method for Calculation of Planetary Secular Perturbations and its Application to Ceres. Krasnoe znamya, TomskGoogle Scholar
Halliday, I., Griffin, A.A. & Blackwell, A.T. 1971, MORP network fireball data (1971-84). The IAU Meteor Data Center in Lund, SwedenGoogle Scholar
Halliday, I., Griffin, A.A. & Blackwell, A.T. 1996, Meteor & Planet. Sci. 31, 185Google Scholar
Jenniskens, P. 2004, WGN, The Journal of the IMO 32:1, 7Google Scholar
Jewitt, D.C. 1992, in: Newburn, R.L. (eds.), Comets in the Post-Halley Era (Dordrecht: Kluwer), p. 19Google Scholar
Kashcheev, B.L., Lebedinets, V.N. & Lagutin, M.F. 1967, Meteoric Phenomena in the Earth atmosphere, Nauka. MoscowGoogle Scholar
Lebedinets, V.N., Korpusov, V.N. & Sosnova, A.K. 1972, Trudy Inst. Eksper. Meteorol. No 1 (34), 88Google Scholar
McCrosky, R.E., Shao, C.Y. & Posen, A. 1978, Prairie network fireball data (1963-75). Meteoritika (Russian) 37, 44Google Scholar
Porubčan, V., Kornoš, L. & Williams, I.P. 2004, Earth, Moon & Planets 95, 697Google Scholar
Sekanina, Z. 1973, Icarus 18, 253CrossRefGoogle Scholar
Sekanina, Z. 1976, Icarus 27, 265CrossRefGoogle Scholar
Southworth, R.B. & Hawkins, G.S. 1963, Smit. Contrib. Astrophys. 7, 261Google Scholar
Terentyeva, A.K. 1989, in: Lagerkvist, C.-I., Rickman, H., Lindblad, B.A., Lindgren, M. (eds.) Asteroids, Comets, Meteors III, (Uppsala Universitet, Reprocentralen HSC), Uppsala, p. 579Google Scholar
Williams, I.P. 1997, Astronomy & Geophysics 38, 23CrossRefGoogle Scholar
Williams, I.P. 2002, The Evolution of Meteoroid Streams, in: Murad, E. and Williams, I.P. (eds.), Meteors in the Earth's Atmosphere, Cambridge University Press, p. 13Google Scholar
Williams, I.P., Ryabova, G.O., Baturin, A.P. & Chernitsov, A.M. 2004, MNRAS 355, p. 1171CrossRefGoogle Scholar
Williams, I.P. & Wu, Z. 1993, MNRAS 264, 659CrossRefGoogle Scholar