Blowing things up with sincerity

1
Blowing things up with sincerity
The Impact Group Betty Pierazzo Natasha
Artemieva Boris Ivanov

• Research Interests
• Role of target properties on
• the impact cratering process
• Impact cratering on various
• planetary surfaces
• Mars, Earth, Moon
• Effects of impacts on climate
• and environment

Models allow to verify the physics of the process
and study conditions beyond the reach of
experiments
2
Research Projects

• Validation and benchmarking of impact codes A
  broadbased effort of the impact cratering
  modeling community (Yr 2)
• NASA-PGG - CoIs Keith Holsapple, Kevin Housen
  12 collaborators
• Effects of lithologies on impact cratering
  Numerical modeling of known terrestrial craters
  (Yr 2)
• NASA-PGG - CoIs N.A. Artemieva B.A. Ivanov
  (Russian Acad. Sci., Moscow)
• 3) Impact cratering on Mars hydrothermal
  systems, ejecta and ramparts (Yr 2)
• NASA-MFR - CoIs N.A. Artemieva B.A. Ivanov
  (Russian Acad. Sci.)
• 4) Direct Numerical Simulation of Comet Impacts
  and Low-Density Atmospheric Flow on the Moon and
  the Effects on Ice Deposition in Cold Traps (Yr
  3, CoI)
• NASA-Atmospheres (UofTX Subcontract David
  Goldstein PI)
• 5) Impacts and environmental catastrophes A
  study of the effects of impact events on the
  climate system (just ended)
• NASA-Exobiology - Collaboration with NCAR

3

• Validation and benchmarking of impact codes A
  broadbased effort of the impact cratering
  modeling community (Yr 2)
• NASA-PGG - CoIs Keith Holsapple, Kevin Housen
  12 collaborators
• ? International with involvement of at least 15
  scientists
• ? Two abstracts on first benchmark and
  validation test

4

• Effects of lithologies on impact cratering
  Numerical modeling of known terrestrial craters
  (Yr 2)
• NASA-PGG - CoIs N.A. Artemieva B.A. Ivanov
  (Russian Acad. Sci., Moscow)
• Investigate the role of material properties,
  target complexities and impact conditions on
  material ejection
• ? Paper on Meteor Crater (submitted)

Cloud, D108m
Intact, D32.4m
vimp16.7 km/s vimp11.8 km/s
5

• Direct Numerical Simulation of Comet Impacts
  and Low-Density Atmospheric Flow on the Moon and
  the Effects on Ice Deposition in Cold Traps (Yr
  3)
• NASA-Atmospheres (UofTX Subcontract David
  Goldstein PI)
• Combine 3D hydrocode modeling of impacts with
  molecular flow of a gas cloud, including
  chemistry and condensation/sublimation

6

• NASA-E/PO grant The Explorer's Guide to Impact
  Craters or Motivating learning about STEM
  careers, research, and content through the study
  of impact craters
• Introduce the study of impact craters through 1)
  virtual tours of impact craters, 2) computer
  simulations of the impact process, and 3)
  examination of impact rock samples

http//www.psi.edu/explorecraters/