Enceladus: Cosmic Graffiti Artist Caught in the Act

Author:

Verbiscer Anne1234,French Richard1234,Showalter Mark1234,Helfenstein Paul1234

Affiliation:

1. Department of Astronomy, University of Virginia, Charlottesville, VA 22904, USA.

2. Department of Astronomy, Wellesley College, Wellesley, MA 02481, USA.

3. Search for Extraterrestrial Intelligence Institute, Mountain View, CA 94043, USA.

4. Department of Astronomy, Cornell University, Ithaca, NY 14853, USA.

Abstract

As one of the most geologically active bodies in the solar system, Saturn's moon Enceladus not only coats itself with water ice particles, it accounts for the unusually high albedos of the other satellites orbiting within Saturn's vast, tenuous E ring. This effect is evident in Hubble Space Telescope observations obtained at true opposition on 13 and 14 January 2005 that reveal that the mean geometric albedos of satellites embedded within the E ring approximate or exceed unity.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

Reference11 articles.

1. Cassini Observes the Active South Pole of Enceladus

2. J. A. Burns, in Satellites, J. A. Burns, M. S. Matthews, Eds. (Univ. of Arizona Press, Tucson, AZ, 1986), pp. 1–38.

3. Conservation of energy allows p > 1 if a satellite is strongly backscattering or has a strong OE.

4. D. L. Domingue et al., Icarus90, 30 (1991).

5. M. Hicks, B. Buratti, Icarus171, 210 (2004).

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