J-GLOBAL ID:200904041546678544  Research Project code:9800016410 Update date:May. 10, 2007

Experiment concerning the velocity distribution of fragments emitted by the collision of small heavenly bodies

Study period:1990 - 0
Organization (1):
Investigating Researcher (7):
Research field (1): Others
Research overview:
It is considered that the planets and the satellites in the solar system have grown from colliding of planetesimals with each other and gradually getting united. Among the fragments to be emitted when a planetesimal gets collision, those exceeding in escape velocity scatter away and those below the escape velocity fall on the celestial body. In other words, the velocity distribution of fragments is an important quantity to control the speed of growth of the planet. Therefore, shooting high speed solid particles in the targets such as rock and gypsum to break down, the velocity distribution of the fragments to be emitted therefrom is examined by means of photograph with a camera. The information to be obtained therefrom is used for determination of presence of regolith on asteroids.
Keywords (7):
moon ,  heat flow ,  telemetry ,  automatic measurement ,  seismograph ,  seismic observation ,  planetary geology
Project Organization (1):
  • (A089001000)
Research program: Ordinary Research
Ministry with control over the research :
Ministry of Education, Culture, Sports, Science and Technology

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