Experimental approach of dust processing in protoplanetary disks ...
Experimental approach of dust processing in protoplanetary disks ...
Experimental approach of dust processing in protoplanetary disks ...
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Irradiation par des ions: exemple 2/3<br />
amorphisation<br />
Conditions<br />
experimentales:<br />
He sur oliv<strong>in</strong>e<br />
Energie: 4 keV<br />
5 10 16 ions/cm 2 10 17 ions/cm 2<br />
Implantation<br />
5 10 17 ions/cm 2 10 18 ions/cm 2<br />
Porosité des<br />
poussières<br />
Implantations de gaz<br />
rares<br />
Réduction de la taille<br />
des poussières dans<br />
l’ISM ?<br />
Surpression, fracturation<br />
Demyk et al., 2001,<br />
Carrez et al., 2002
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