First-order properties of chondritic cluster IDPs based on data from the NASA/JSC Cosmic Dust Catalogs

Details First-order properties of chondritic cluster IDPs based on data from the NASA/JSC Cosmic Dust Catalogs First-order properties of chondritic cluster IDPs based on data from the NASA/JSC Cosmic Dust Catalogs

Mar 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997lpi....28.1169r&link_type=abstract

Conference Paper, 28th Annual Lunar and Planetary Science Conference, p. 169.

Astronomy and Astrophysics

Astronomy

Cosmic Dust, Astronomical Catalogs, Chondrites, Dust Collectors, Interplanetary Dust, Nasa Space Programs, Japanese Space Program, Petrology, Solar Corona

Scientific paper

Since the early days of the NASA/JSC Cosmic Dust Program it was appreciated that an interplanetary dust particle (IDP) on a collector surface could be a fragment of a cluster particle, but there was no unambiguous cluster definition. The designation of an individual IDP as a fragment is still not fully reliable. A survey of nonspherical chondritic IDPs showed that cluster IDPs are common, but may be underestimated on small area collectors. Recently, the wide variety of textures, minerals and chemical properties of individual IDPs believed to be fragments of a cluster IDP was submitted as evidence for the existence of an asteroidal regolith. Knowledge of small solar system bodies requires recognition of cluster IDPs to define the nature of the meteoroid flux in this size range and their source(s). To explore the first-order properties, I surveyed the abundances, sizes and morphology of nonspherical chondritic IDPs from the NASA/JSC Cosmic Dust Catalogs 1-5 and 7-14.

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