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Plausible parent bodies for enstatite chondrites and mesosiderites: Implications for Lutetia's fly-by
Fulchignoni, M.; Vernazza, P.; Strazzulla, G. +4 more
We present new irradiation experiments performed on the enstatite chondrite Eagle (EL6) and the mesosiderite Vaca Muerta. These experiments were performed with the aims of (a) quantifying the spectral effect of the solar wind on their parent asteroid surfaces and (b) identifying their parent bodies within the asteroid belt. For Vaca Muerta we obse…
Fully 3-dimensional calculations of dust mantle formation for a model of Comet 67P/Churyumov-Gerasimenko
Rosenberg, Eric D.; Prialnik, Dina
A fully 3-dimensional implicit numerical model for comet nucleus evolution is presented, emphasizing dust mantle formation. A spherical configuration is considered with an initial composition of amorphous H 2O ice and dust, taking into account a discrete dust-grain size distribution. The model is applied to Comet 67P/Churyumov-Gerasimen…
No satellites detected around 21 Lutetia
Kulkarni, Shrinivas R.; Busch, Michael W.; Conrad, Al
The Asteroid 21 Lutetia is the target of a flyby by the Rosetta spacecraft in mid-2010. We observed Lutetia with the Keck adaptive-optics system, and searched for satellites. We find none, to a flux limit of 1/350 (Δ-mag = 6.4), corresponding to a size limit of roughly 6 km, at a separation of 0.15″ (3 primary radii or 0.006 Hill radii).