Meteorites from the asteroid 6 Hebe

Details Meteorites from the asteroid 6 Hebe Meteorites from the asteroid 6 Hebe

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993cemda..56..287f&link_type=abstract

Celestial Mechanics and Dynamical Astronomy (ISSN 0923-2958), vol. 56, no. 1-2, p. 287-305.

Astronomy and Astrophysics

Astronomy

26

Asteroids, Meteorite Collisions, Meteorites, Meteoritic Damage, Orbital Resonances (Celestial Mechanics), Space Debris, Dynamic Models, Earth Surface, Jupiter (Planet), Mars Surface

Scientific paper

The asteroid 6 Hebe, an S-type object of about 200 km in diameter whose proper elements include a semimajor axis of 2.425 AU, an eccentricity of 0.169, and an inclination of 15.05 deg, is studied. A hypothesis that the asteroid 6 Hebe lies so close to the secular resonance (Milani and Knezevic, 1990, 1992) that a large fraction of its fragments is considered to be plausible candidates for achieving chaotic orbits, eventually leading to earth encounters, is tested. A suitable set of numerical experiments is performed on the long-term behavior of the orbits of 18 fictitious Hebe fragments. Data obtained show that fragments ejected from an existing large asteroid according to plausible collisional physics can approach the earth, i.e., become candidate meteorites, whithin a time span of the order of 1 Myr.

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