The role of presolar dust in the formation of the solar system

Details The role of presolar dust in the formation of the solar system The role of presolar dust in the formation of the solar system

Feb 1988

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988em%26p...40..165h&link_type=abstract

Earth, Moon, and Planets (ISSN 0167-9295), vol. 40, Feb. 1988, p. 165-211.

Computer Science

16

Chondrites, Interplanetary Dust, Meteoritic Composition, Molecular Clouds, Solar System, Stellar Evolution, Calcium, Interstellar Matter, Iron, Magnesium, Oxygen, Titanium

Scientific paper

The characteristics of interstellar dust are discussed and the Sun's parent molecular cloud is divided into eight material reservoirs. Then the types of meteorites likely to preserve presolar dust are identified. With these boundary conditions established, the nature and occurrence of putative presolar grains in meteorites is discussed and material which may have formed directly from presolar dust is identified. The focus then shifts to show that the widespread occurrence of processed and unprocessed presolar dust in primitive chondrites is consistent with our knowledge of the early solar system. It is suggested that partial evaporation of presolar dust can explain chemical differences between chondrite classes. A model for chondrule formation consistent with the above concepts is also presented.

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