J
M
Last name: JUTZI
First name: M.
International audience
Icarus, 198, pp. 242-255, http://dx.doi.org./10.1016/j.icarus..06.013
Context. The detection of a large crater (2 km in diameter) on Steins, a diamond-shape asteroid with a diameter of only about 4.6 km, was a large surprise given the size of the asteroid itself. Steins belongs to the rare class of E-type asteroids, which had not been observed by any spacecraft before the Rosetta mission of the European Space...
International audience
In this paper, we present numerical simulations aimed at reproducing the Baptistina family based on its properties estimated by observations. A previous study by Bottke et al. (2007) indicated that this family is probably at the origin of the K/T impactor, is linked to the CM meteorites and was produced by the disruption of a parent body 170 km...
Context. Most small asteroids (< 50 km in diameter) are the result of the breakup of a larger parent body and are often considered to be rubble-pile objects. Similar structures are expected for the secondaries of small asteroid binaries, including Dimorphos, the smaller component of the 65 803 Didymos binary system and the target of NASA's...
Icarus, 201, pp. 802-813 (2009)
We present a series of numerical simulations using a shock physics smoothed particle hydrodynamics code, investigating energetic impacts on small celestial bodies characterized by diverse internal structures, ranging from weak and homogeneous compositions to rubble-pile structures with varying boulder volume packing. Our findings reveal that...
International audience
International audience
Introduction: Images sent by the two sample-return space missions Hayabusa2 (JAXA) and OSIRIS-REx (NASA) show that asteroids Ryugu and Bennu are top shapes: oblate spheroids with a more or less pronounced equatorial bulge, also referred to as diamonds or bi-cones. Radar models of other asteroids , including binary primaries, as well as images...
Asteroid shapes and hydration levels can serve as tracers of their history and origin. For instance, the asteroids (162173) Ryugu and (101955) Bennu have an oblate spheroidal shape with a pronounced equator, but contain different surface hydration levels. Here we show, through numerical simulations of large asteroid disruptions, that oblate...
International audience