Amalthea's Density Is Less Than That of Water-Reference-Cited by-同舟云学术

Amalthea's Density Is Less Than That of Water

Published:2005-05-27 Issue:5726 Volume:308 Page:1291-1293
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Anderson John D.¹²³⁴⁵,Johnson Torrence V.¹²³⁴⁵,Schubert Gerald¹²³⁴⁵,Asmar Sami¹²³⁴⁵,Jacobson Robert A.¹²³⁴⁵,Johnston Douglas¹²³⁴⁵,Lau Eunice L.¹²³⁴⁵,Lewis George¹²³⁴⁵,Moore William B.¹²³⁴⁵,Taylor Anthony¹²³⁴⁵,Thomas Peter C.¹²³⁴⁵,Weinwurm Gudrun¹²³⁴⁵

Affiliation:

1. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109-8099, USA.

2. Department of Earth and Space Sciences, University of California, Los Angeles, CA 90095-1567, USA.

3. Institute of Geophysics and Planetary Physics, Los Angeles, CA 90095-1567, USA.

4. Center for Radio Physics and Space Research, Cornell University, Ithaca, NY 14853-4901, USA.

5. Institute of Geodesy and Geophysics, Vienna University of Technology, A-1040 Vienna, Austria.

Abstract

Radio Doppler data from the Galileo spacecraft's encounter with Amalthea, one of Jupiter's small inner moons, on 5 November 2002 yield a mass of (2.08 ± 0.15) × 10 18 kilograms. Images of Amalthea from two Voyager spacecraft in 1979 and Galileo imaging between November 1996 and June 1997 yield a volume of (2.43 ± 0.22) × 10 6 cubic kilometers. The satellite thus has a density of 857 ± 99 kilograms per cubic meter. We suggest that Amalthea is porous and composed of water ice, as well as rocky material, and thus formed in a cold region of the solar system, possibly not at its present location near Jupiter.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference24 articles.

1. E. E. Barnard, Astron. J.12, 81 (1892).

2. D. J. Tholen, V. G. Tejfel, A. N. Cox, in Allen's Astrophysical Quantities Fourth Edition, A. N. Cox, Ed. (Springer-Verlag, New York, 2000), pp. 302-310.

3. D. C. Jewitt, G. E. Danielson, S. P. Synnott, Science206, 951 (1979).

4. 1979J2: The Discovery of a Previously Unknown Jovian Satellite

5. S. P. Synnott, Science210, 1392 (1980).

Cited by 64 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. Igneous processes in the small bodies of the Solar System II: Small satellites and dwarf planets;iScience;2024-05

2. Moons and Jupiter Imaging Spectrometer (MAJIS) on Jupiter Icy Moons Explorer (JUICE);Space Science Reviews;2024-03-19

3. Effect of finite straight segment and oblateness in the restricted 2+2 body problem;Archive of Applied Mechanics;2023-03-29

4. Setting the Stage: Formation and Earliest Evolution of Io;Io: A New View of Jupiter’s Moon;2023

5. Structure and properties of water;Principles of Soil and Plant Water Relations;2023