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Stability of the Most Hazardous Mars-Crossers

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Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The equations of motion of 4190 Mars Crossers (MCs) were numerically integrated to analyze their all possible close approaches to planets in the next 104 years. A sample of asteroids potentially hazardous to Mars was selected and properties of their chaotic motion on larger time scales were determined. For samples of MCs closely approaching Mars, their mean frequency of close encounters was computed. We also analyzed the presence of mean motion and secular resonances. The population of asteroids hazardous to Mars was found and the influence of frequent close approaches and resonances on the stability of their trajectories was estimated. We also estimated the correlation between the frequency of close approaches to Mars and the Lyapunov Time (LT) of these asteroids. Some results concerning the correlation between mean motion/secular resonances and LT were also presented as well as three selected examples of dynamically interesting MCs.
Słowa kluczowe
Czasopismo
Rocznik
Strony
413--425
Opis fizyczny
Bibliogr. 11 poz., rys., tab., wykr.
Twórcy
  • Institute of Physics, Świętokrzyska Academy, ul. Świętokrzyska 15, 25-406 Kielce, Poland
  • Astronomical Observatory of the Chorzów Planetarium, WPKiW, 41-500 Chorzów, Poland
Bibliografia
  • Chambers, J. 1999, MNRAS, 304, 793.
  • Duncan, M.J., Levison, H.F., and Lee, M. 1998, Astron. J., 116, 2067.
  • Michel, P., Migliorini F., Morbidelli, A., and Zappala, V. 2000, Icarus, 145, 332.
  • Morbidelli, A., and Froeschle, C. 1996, Celestial Mechanics and Dynamical Astronomy, 63, 227.
  • Morbidelli, A., and Nesvorny, D. 1999, Icarus, 139, 295.
  • Sitarski, G. 2002, Acta Astron., 52, 471.
  • Standish, E.M. 1998, “JPL Planetary and Lunar Ephemerides, DE405/LE405”, JPL IOM 312.F-98-048.
  • Tancredi, G. 1998, Celestial Mechanics and Dynamical Astronomy, 70, 181.
  • Tancredi, G., Motta, V., and Froeschle, C. 2000, Astron. Astrophys., 356, 339.
  • Tancredi, G., Sanchez, A., and Roig, F. 2001, Astron. J., 121, 1171.
  • Włodarczyk, I. 2001, Acta Astron., 51, 357.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-1d097925-8922-44e5-b867-bb6a807cd351
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