The nebular environment of chondrite formation

Details The nebular environment of chondrite formation The nebular environment of chondrite formation

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1583w&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 583.

Physics

1

Chondrites, Solar Corona, Cosmic Dust, Chondrule, Condensates, Energy Dissipation, Silicates

Scientific paper

Consideration is given to two problems associated with chondrite formation in the solar nebula: the source of the heat that melted chondrules, and the agent that brought dispersed particles of condensate together to form them. A FORTRAN program is used to model the motion of particles in a rotating eddy on the assumption that they increase their sizes by accumulating the involatile elements they encounter as they move through the gas, either in the form of adhering dust or as condensate from the gas. It is found that for relatively dense systems, chondrule-sized objects can 'grow' on the order of an hour as they spin out of an eddy, which is also the time scale of the turnover of the smallest eddies assumed by Cuzzi et al. (1996) and the present simulation, and the time scale of chondrule cooling.

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