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Title:
Radar Evidence for Liquid Surfaces on Titan
Authors:
Campbell, Donald B.; Black, Gregory J.; Carter, Lynn M.; Ostro, Steven J.
Affiliation:
AA(National Astronomy and Ionosphere Center and Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, NY 14853, USA.), AB(Department of Astronomy, University of Virginia, Post Office Box 3818, Charlottesville, VA 22903, USA.), AC(Department of Astronomy, Space Sciences Building, Cornell University, Ithaca, NY 14853, USA.), AD(300-233 Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109-8099, USA.)
Publication:
Science, Volume 302, Issue 5644, pp. 431-434 (2003).
Publication Date:
10/2003
Category:
PLANET SCI
Origin:
SCIENCE
DOI:
10.1126/science.1088969
Bibliographic Code:
2003Sci...302..431C

Abstract

Arecibo radar observations of Titan at 13-centimeter wavelength indicate that most of the echo power is in a diffusely scattered component but that a small specular component is present for about 75% of the subearth locations observed. These specular echoes have properties consistent with those expected for areas of liquid hydrocarbons. Knowledge of the areal extent and depth of any deposits of liquid hydrocarbons could strongly constrain the history of Titan's atmosphere and surface.
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