Impact-generated dust clouds around planetary satellites: model versus Galileo data

Details Impact-generated dust clouds around planetary satellites: model versus Galileo data Impact-generated dust clouds around planetary satellites: model versus Galileo data

May 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005p%26ss...53..625s&link_type=abstract

Planetary and Space Science, Volume 53, Issue 6, p. 625-641.

Other

5

Scientific paper

This paper focuses on tenuous dust clouds of Jupiter's Galilean moons Europa, Ganymede and Callisto. In a companion paper (Sremčević et al., Planet. Space Sci. 51 (2003) 455 471) an analytical model of impact-generated ejecta dust clouds surrounding planetary satellites has been developed. The main aim of the model is to predict the asymmetries in the dust clouds which may arise from the orbital motion of the parent body through a field of impactors. The Galileo dust detector data from flybys at Europa, Ganymede and Callisto are compatible with the model, assuming projectiles to be interplanetary micrometeoroids. The analysis of the data suggests that two interplanetary impactor populations are most likely the source of the measured dust clouds: impactors with isotropically distributed velocities and micrometeoroids in retrograde orbits. Other impactor populations, namely those originating in the Jovian system, or interplanetary projectiles with low orbital eccentricities and inclinations, or interstellar stream particles, can be ruled out by the statistical analysis of the data. The data analysis also suggests that the mean ejecta velocity angle to the normal at the satellite surface is around 30°, which is in agreement with laboratory studies of the hypervelocity impacts.

Affiliated with

Also associated with

No associations

Rating

Impact-generated dust clouds around planetary satellites: model versus Galileo data 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-generated dust clouds around planetary satellites: model versus Galileo data, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Impact-generated dust clouds around planetary satellites: model versus Galileo data will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1378303