Asteroids with satellites: Analysis of observational data
The volume of observational information on asteroids and trans-Neptunians with satellites has significantly increased in recent years. In this paper we study the dependence of asteroid duplicity on the main physical parameters of the primary: the size and rotation rate. The proportion of binary asteroids is shown to grow rapidly with the rotation rate of the primary. The pattern of dependence between asteroid duplicity and size is more complex, with peaks in the area of small (<10 km) and large (>100 km) bodies. Noteworthy is the small number of binaries among typical-sized asteroids (10–150 km). All the orbits of asteroidal satellites whose rotation direction is known are shown to be prograde and have small eccentricities and inclinations.
Unable to display preview. Download preview PDF.
- Fridman, A.M. and Gorkavyi, N.N., Physics of Planetary Rings, Springer, 1999.Google Scholar
- Gaftonyuk, N. and Gorkavyi, N., The Origin and Rotation of Binary Asteroids, Proc. Conf. “Astronomy in Ukraine—Past, Present and Future” Kiev, July 15–17, 2004, p. 201.Google Scholar
- Gaftonyuk, N.M. and Gorkavyi, N.N., The Origin and Rotation of Binary Asteroids, Kinemat. Fiz. Nebesn. Tel. Suppl. Ser., 2005, no. 5, pp. 483–486.Google Scholar
- Gorkavyi, N.N., Ozernoy, L.M., Mather, J.C., and Taidakova, T., The NGST and the Zodiacal Light in the Solar System, in NGST Science and Technology Exposition, Smith, E.P. and Long, K.S., Eds., 2000, vol. 207, pp. 462–467.Google Scholar
- Gorkavyi, N.N., Moon and Double Asteroids Formation, Izv. Krymsk. Astrofiz. Obs., 2007, vol. 103, no. 2, pp. 143–155.Google Scholar
- Harris, A.W., The Rotation Rates of Very Small Asteroids: Evidence for “Rubble Pileai]” Structure, Proc. 27th Lunar and Planet. Sci. Conf., Houston: Lunar and Planetary Institute, 1996, pp. 493–494.Google Scholar
- Johnston, Wm.R., Asteroids and Satellites. http://www.johnstonsarchive.net/astro/asteroidmoons.html
- Jones, J.H. and Palme, H., Geochemical Constraints on the Origin of the Earth and Moon, in Origin of the Earth and Moon, Canup, R.M. and Righter, K., Eds., Univ. Arizona Press, 2000, pp. 197–216.Google Scholar
- Origin of the Moon, Hartmann, W.K., Phillips, R.J., and Taylor, G.J., Eds., Houston: LPI Press, 1986.Google Scholar
- Pravec, P., Harris, A., and Michajlovsky, T., Asteroid Rotation, in Asteroids III, Bottke, W.F., Cellino, A., Paolicchi, P., and Binzel, R.P., Eds., Tuscon: Univ. Arizona Press, 2002, pp. 113–121.Google Scholar
- Ruskol, E.L., Proiskhozhdenie Luny (Origin of the Moon), Moscow: Nauka, 1975.Google Scholar