193 citations · 485 across the 16 of their papers we have counts for
5 papers · 1 filter
Formation of GEMS from shock-accelerated crystalline dust in superbubbles
A. J. Westphal, J. P. Bradley
Interplanetary dust particles (IDPs) contain enigmatic sub-micron components called GEMS (Glass with Embedded Metal and Sulfides). The compositions and structures of GEMS indicate…
Aerogel keystones: extraction of complete hypervelocity impact events from aerogel collectors
Andrew J. Westphal, Christopher J. Snead, Anna L. Butterworth +7
In January 2006, the Stardust mission will return the first samples from a solid solar-system body since Apollo, and the first samples of contemporary interstellar dust ever collec…
A Fluorescent Aerogel for Capture and Identification of Interplanetary and Interstellar Dust
Gerardo Dominguez, Andrew J. Westphal, Mark L. F. Phillips +1
Contemporary interstellar dust has never been analyzed in the laboratory, despite its obvious astronomical importance and its potential as a probe of stellar nucleosynthesis and ga…
Probing the structure of the cold dark matter halo with ancient mica
Edward A. Baltz, Andrew J. Westphal, Daniel P. Snowden-Ifft
Mica can store (for >1 Gy) etchable tracks caused by atoms recoiling from WIMPs. Ancient mica is a directional detector despite the complex motions it makes with respect to the WIM…
Unique Signature of Dark Matter in Ancient Mica
Daniel P. Snowden-Ifft, Andrew J. Westphal
Mica can store (for >1 Gy) etchable tracks caused by atoms recoiling from WIMPs. Because a background from fission neutrons will eventually limit this technique, a unique signature…