Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...274..944p&link_type=abstract
Astronomy and Astrophysics, vol. 274, 944-954. Article.
Astronomy and Astrophysics
Astrophysics
2
Meteoroids, Comets: General, Comets, Meteorites, Fireballs, Comet Nuclei, Chondritic Material, Fragments, Atmosphere, Depth, Theoretical Studies, Mass, Chondrites, Stony Meteorites, Orbit, Parent Bodies, Meteoroids, Orbital Elements, Hypotheses, Density, Strength, Velocity, Comparison, Composition
Scientific paper
By testing fireballs, associated with cometary fragments, in the Earth's atmosphere, their depth of penetration, and by comparing their theoretical residual masses with meteorite falls, it is argued that there are also chondrites, besides volatiles, in cometary nuclei.
Ordinary chondrites mostly orbit in Apollo-, Amor- and Athenae-type orbits, and carbonaceous chondrites probably predominate in more eccentric orbits whose aphelia are beyond Jupiter. Chondrites probably originate in bodies larger than comets are to-day. The history of the relations between the parental bodies of chondrites and comets should be studied in greater detail.
Jakes Peter
Padevet V.
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