Deep Impact ejection from Comet 9P/Tempel 1 as a triggered outburst
Abstract
Ejection of material after the Deep Impact collision with Comet Tempel 1 was studied based on analysis of the images made by the Deep Impact cameras during the first 13 minutes after impact. Analysis of the images shows that there was a local maximum of the rate of ejection at time of ejection ~10 s with typical velocities ~100 m/s. At the same time, a considerable excessive ejection in a few directions began, the direction to the brightest pixel changed by ~50 deg, and there was a local increase of brightness of the brightest pixel. The ejection can be considered as a superposition of the normal ejection and the longer triggered outburst.
Keywords
Cite
@article{arxiv.1011.5541,
title = {Deep Impact ejection from Comet 9P/Tempel 1 as a triggered outburst},
author = {Sergei I. Ipatov and Michael F. A'Hearn},
journal= {arXiv preprint arXiv:1011.5541},
year = {2010}
}
Comments
4 pages (including 2 figures) Proceedings of the International Astronomical Union, IAU Symposium, IAU vol. 5, Symposium S263, "Icy bodies in the Solar System" (Rio de Janeiro, Brazil, 3-7 August, 2009), ed. by J.A. Fernandez, D. Lazzaro, D. Prialnik, R. Schulz, Cambridge University Press, pp. 317-321. (2010)