Abstract
Asteroids represent both an opportunity and a risk. Their pristine environment captures the early collision evolution of the solar system; while their inherent ground impact potential could result in the mass extinction of life. Amongst the
many possibilities of asteroid deflection, kinematic impactors have been theoretically proven to be a promising technique. However, this is primarily based on modelling rocky, brittle bodies. Little experimental consideration has
been made for highly porous bodies. Therefore to advance current mitigation scenarios a series of experiments have been conducted. Under an accelerated reference frame this aimed to assess the impact cratering response of highly
porous asteroids. All events were examined relative to the increasing levels of porosity and the impact’s resultant morphological profile. This included crater shape and depth, and the ejecta profile. The latter was considered critical in
assessing the overall contribution to the momentum enhancement exchange of any kinematic impact event.
many possibilities of asteroid deflection, kinematic impactors have been theoretically proven to be a promising technique. However, this is primarily based on modelling rocky, brittle bodies. Little experimental consideration has
been made for highly porous bodies. Therefore to advance current mitigation scenarios a series of experiments have been conducted. Under an accelerated reference frame this aimed to assess the impact cratering response of highly
porous asteroids. All events were examined relative to the increasing levels of porosity and the impact’s resultant morphological profile. This included crater shape and depth, and the ejecta profile. The latter was considered critical in
assessing the overall contribution to the momentum enhancement exchange of any kinematic impact event.
Original language | English |
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Number of pages | 8 |
Publication status | Published - 9 May 2011 |
Event | IAA Planetary Defense Conference, Protecting Earth from Asteroids: From threat to Action - Bucharest, , Romania Duration: 9 May 2011 → 12 May 2011 |
Conference
Conference | IAA Planetary Defense Conference, Protecting Earth from Asteroids: From threat to Action |
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Country/Territory | Romania |
City | Bucharest, |
Period | 9/05/11 → 12/05/11 |
Keywords
- impact damage
- porous bodies