Giant Comets in Inner Solar System?

Details Giant Comets in Inner Solar System? Giant Comets in Inner Solar System?

Mar 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996lpi....27.1195s&link_type=abstract

Lunar and Planetary Science, volume 27, page 1195

Physics

1

Comets, Impacts, Moon, Soil: Lunar, Swirls

Scientific paper

Studies of albedo anomalies--swirls on the lunar surface that look like diffuse structures, shown that the formations may be considered to be imprints of relatively recent cometary impacts. It was concluded that the dense streams of gas and dust from inner comet coma imprinted the thin friable surface layer to create swirls. Characteristics of the swirl regions and its positions on the lunar surface correspond to model of frequent giant "new" comet impacts about 10 myr ago. Measurements of swirl fragments and analysis of the data permitted to calculate sizes and contact velocities of these comet bodies. An average comet nucleus size is equal about 100-200 km. The most of comets had contact velocities about 50 km/s.

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