Astronomy and Astrophysics – Astronomy
Scientific paper
Apr 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982chjss...2..111h&link_type=abstract
Chinese Journal of Space Sciences, vol. 2, April 1982, p. 111-117. In Chinese, with abstract in English.
Astronomy and Astrophysics
Astronomy
Asteroids, Comets, Cosmology, Meteorites, Meteoroids, Planetary Evolution, Astronomical Models, Physical Chemistry, Planetary Nebulae, Solar System
Scientific paper
The evolutionary relationship between meteorites, meteoroids, asteroids, and comets is discussed. Both asteroids and comets are the 'half-finished' products of planets evolved from the primitive nebula, i.e., surviving planetesimals. They show evolutionary differences in their orbital characteristics and their physicochemical properties only because they form in different places under different environmental conditions. When volative-rich comets moved into the inner portion of the solar system they disintegrated into meteoroids; the surviving planetesimals in the asteroid region could have broken into fragments during collisions, with those fragments becoming smaller asteroids and meteoroids. Cosmic dust falling into the solar system can also become meteoroids.
Hu W.-Z.
Xuan Jia-Yu
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