New Views of Asteroids-Reference-Cited by-同舟云学术

New Views of Asteroids

Published:1997-12-19 Issue:5346 Volume:278 Page:2070-2071
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Asphaug Erik¹

Affiliation:

1. The author is at the SETI Institute/NASA, Ames Research Center, Moffett Field, CA 94305, USA.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference11 articles.

1. For a typical asteroid with density 1.5 < ρ < 2.5 g cm3 escape velocity (in meters per second) is about equal to asteroidal radius (in kilometers). If you can jump half a meter on Earth you could leap off of an asteroid 5 km in diameter.

2. Rotational periods vary tremendously. Speedy Castalia revolves every 4 hours Mathilde every 17 days. Non-principal-axis rotator Toutatis (see figure) has nothing that can be called a “day ” forever showing different horizons. For further insights see Scott Hudson's Web page http://www.eecs.wsu.edu/~hudson/asteroids.html.

3. This “human ICBM” mode of transportation is ill-advised; D. J. Scheeres et al. Icarus 121 67 (1996) demonstrated the complexity of trajectories proximal to Castalia.

4. For a video view of the Mathilde encounter see http://hurlbut.jhuapl.edu/NEAR/Mathilde/images.html#ani.

5. NEAR's Flyby of 253 Mathilde: Images of a C Asteroid

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1. Collisional evolution of Trans-Neptunian populations: Effects of fragmentation physics and estimates of the abundances of gravitational aggregates;Planetary and Space Science;2009-02

2. Evidence for asteroid space weathering from the Sloan Digital Sky Survey;Icarus;2005-01

3. Science Consultants, Fictional Films, and Scientific Practice;Social Studies of Science;2003-04

4. Asteroid 6 Hebe: The probable parent body of the H-type ordinary chondrites and the IIE iron meteorites;Meteoritics & Planetary Science;1998-11

5. Asteroids: Shattered Worlds;Introduction to Planetary Science