Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000ap%26ss.274..355h&link_type=abstract
Astrophysics and Space Science, v. 274, Issue 1/2, p. 355-363 (2000).
Astronomy and Astrophysics
Astrophysics
9
Scientific paper
We report on theoretical efforts to understand the process of vaporization and ion formation upon hypervelocity impact of small cosmic dust particles on a solid surface. Such collisions occur at the surface of solid bodies within the planetary system, which do not have an atmosphere as well as in various actual and upcoming space missions for in-situ measurements of interplanetary, interstellar and cometary dust. The investigation uses Godunov's method to simulate the impact. For the very high velocitites investigated, the impacting dust particle as well as parts of the target vaporize and some of the vapor cloud may change to partially ionized. Numerical results of the impact process are communicated for an 80 kms-1impact of a slightly porous SiO2 particle on a compact SiO2surface. Values of the amount of vapor and liquid excavated from the target are given. Ionization rates are calculated for the example investigated and an estimate is given how this extrapolates to the highest conceivable velocities in the planetary system (above 100 km s-1).
Hornung Klaus
Kestenboim Khaim S.
Malama Yuri G.
No associations
LandOfFree
Impact Vaporization and Ionization of Cosmic Dust Particles does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Impact Vaporization and Ionization of Cosmic Dust Particles, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impact Vaporization and Ionization of Cosmic Dust Particles will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1768588