Ontology highlight
ABSTRACT:
SUBMITTER: Libourel G
PROVIDER: S-EPMC6713493 | biostudies-literature | 2019 Aug
REPOSITORIES: biostudies-literature
Libourel Guy G Nakamura Akiko M AM Beck Pierre P Potin Sandra S Ganino Clément C Jacomet Suzanne S Ogawa Ryo R Hasegawa Sunao S Michel Patrick P
Science advances 20190828 8
Several arguments point to a larger proportion of metal-rich asteroids than that derived from spectral observations, as remnants of collisional disruptions of differentiated bodies. We show experimentally that this apparent deficit may result from the coating of metallic surfaces by silicate melts produced during impacts of hydrated or dry projectiles at typical asteroid impact speeds. Spectral analysis of steel and iron meteorite targets after impact shows a profoundly modified optical signatur ...[more]