Behavior of Jupiter Non-Trojan Co-Orbitals

• Autorzy: Wajer P. , Królikowska M.
• Języki publikacji: EN

Abstrakty

EN

Searching for the non-Trojan Jupiter co-orbitals we have numerically integrated orbits of 3160 asteroids and 24 comets discovered by October 2010 and situated within and close to the planet co-orbital region. Using this sample we have been able to select eight asteroids and three comets and analyze their orbital behavior in a great detail. Among them we have identified five new Jupiter co-orbitals: (241944) 2002 CU₁₄₇, 2006 S.A.₃₈₇, 2006 QL₃₉, 2007 GH₆, and 200P/Larsen, as well as we have analyzed six previously identified co-orbitals: (118624) 2000 HR₂₄, 2006 UG₁₈₅, 2001 QQ₁₉₉, 2004 AE₉, P/2003 WC₇ LINEAR-CATALINA and P/2002 AR₂ LINEAR. (241944) 2002 CU147 is currently on a quasi-satellite orbit with repeatable transitions into the tadpole state. Similar behavior shows 2007 GH₆ which additionally librates in a compound tadpole-quasi-satellite orbit. 2006 QL₃₉ and 2000P/Larsen are the co-orbitals of Jupiter which are temporarily moving in a horseshoe orbit occasionally interrupted by a quasi-satellite behavior. 2006 S.A.₃₈₇ is moving in a pure horseshoe orbit. Orbits of the latter three objects are unstable and according to our calculations, these objects will leave the horseshoe state in a few hundred years. Two asteroids, 2001 QQ₁₉₉ and 2004 AE₉, are long-lived quasi-satellites of Jupiter. They will remain in this state for a few thousand years at least. The comets P/2002 AR2 LINEAR and P/2003 WC₇ LINEAR-CATALINA are also quasi-satellites of Jupiter. However, the non-gravitational effects may be significant in the motion of these comets. We have shown that P/2003 WC7 is moving in a quasi-satellite orbit and will stay in this regime to at least 2500 year. Asteroid (118624) 2000 HR₂₄ will be temporarily captured in a quasi-satellite orbit near 2050 and we have identified another one object which shows similar behavior - the asteroid 2006 UG₁₈₅, although, its guiding center encloses the origin, it is not a quasi-satellite. The orbits of these two objects can be accurately calculated for a few hundred years forward and backward.

Słowa kluczowe

EN

minor planets; asteroids: general; comets: general; celestial mechanics; methods: numerical

• Wydawca: Copernicus Foundation for Polish Astronomy
• Czasopismo: Acta Astronomica
• Rocznik: 2012
• Tom: Vol. 62, No. 1
• Strony: 113--131
• Opis fizyczny: Bibliogr. 25 poz., rys., tab., wykr.

Twórcy

autor

Wajer P.

• Space Research Centre of the Polish Academy of Sciences, Bartycka 18A, 00-716 Warsaw, Poland

autor

Królikowska M.

• Space Research Centre of the Polish Academy of Sciences, Bartycka 18A, 00-716 Warsaw, Poland

Bibliografia

• Brasser, R., Innanen, K.A., Connors,M., Veillet, C.,Wiegert, P., Mikkola, S., and Chodas, P.W. 2004, Icarus, 171, 102.
• Brown, E.W. 1911, MNRAS, 71, 438.
• Connors, M., Veillet, C., Brasser, R., Wiegert, P., Chodas, P., Mikkola, S., and Innanen, K. 2004, Meteoritics and Planetary Science, 39, 1251.
• Connors, M., Stacey, G., Brasser, R., and Wiegert, P. 2005, Planetary and Space Science, 53, 617.
• Christou, A.A. 2000, Icarus, 144, 1.
• Hadjifotinou,K.G., and Gousidou-Koutita,M. 1998,CelestialMechanics and Dynamical Astronomy, 70, 99.
• Jackson, J. 1913, MNRAS, 74, 62.
• Karlsson, O. 2004, A&A, 413, 1153.
• Kinoshita, H., and Nakai, H. 2007, Celestial Mechanics and Dynamical Astronomy, 98, 181.
• Kortenkamp, S.J., and Joseph, E.C.S. 2011, Icarus, 215, 669.
• Królikowska, M., Sitarski, G., and Sołtan, A.M. 2009, MNRAS, 399, 1964.
• Licandro, J., de León, J., Pinilla, N., and Serra-Ricart, M. 2006, Advances in Space Research, 38, 1991.
• Lidov, M.L., and Vashkov’yak, M.A. 1994, Astronomy Letters, 20, 676.
• Marsden B.G., and Williams G.V. 2008, Smithsonian Astrophysical Observatory, Cambridge, Mass.
• Mikkola, S., and Innanen, K. 1997, “The Dynamical Behaviour of our Planetary System”, Proceedings of the Fourth Alexander von Humboldt Colloquium on Celestial Mechanics Kulwer Academic Publishers, Ed. R. Dvorak and J. Henrard.345
• Namouni, F. 1999, Icarus, 137, 293.
• Namouni, F., Christou, A.A., and Murray, C.D. 1999, Phys. Rev. Lett., 83, 2506.
• Namouni, F., and Murray, C.D. 2000, Celestial Mechanics and Dynamical Astronomy, 76, 131.
• Sheppard, S.S., and Trujillo, C.A. 2006, Science, 313, 511.
• Sitarski, G. 1979, Acta Astron., 29, 401.
• Sitarski, G. 1998, Acta Astron., 48, 547.
• Stacey, R.G., and Connors, M. 2008, Planetary and Space Science, 56, 358.
• Wajer, P. 2009, Icarus, 200, 147.
• Wajer, P. 2010, Icarus, 209, 488.
• Wiegert, P., Innanen, K., and Mikkola, S. 2000, AJ, 119, 1978.