On the density of EKOs and related objects

Details On the density of EKOs and related objects On the density of EKOs and related objects

Oct 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005a%26a...441l...5a&link_type=abstract

Astronomy and Astrophysics, Volume 441, Issue 1, October I 2005, pp.L5-L7

Astronomy and Astrophysics

Astrophysics

Minor Planets: General, Comets: Individual: Halley

Scientific paper

Recently published mass determinations of EKO binaries, combined with photometric size determinations, allow to derive a mean density of the distant minor planets of ≈0.2 g cm-3. This agrees well with the nuclear density of 1P/Halley of 0.26 g cm-3, determined in the Giotto mission, and it suggests that these low density objects are essentially undifferentiated planetesimals.

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