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Thermal response of Iapetus to an eclipse by Saturn's rings

Neugebauer, G. and Matthews, K. and Nicholson, P. D. and Soifer, B. T. and Gatley, I. and Beckwith, S. V. W. (2005) Thermal response of Iapetus to an eclipse by Saturn's rings. Icarus, 177 (1). pp. 63-68. ISSN 0019-1035.

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Measurements of Iapetus as seen at 20 and 2.2 μm in the shadow of Saturn's ring are given, providing the thermal response to a rapidly varying heat input. The 20 μm thermal emission follows the 2.2 μm flux input closely. The observations, plus a simple diffusion calculation, imply that the surface of Iapetus is made of material having a very small thermal inertia, probably / ≾ 10Jm^(-2)s^(-½)K^(-1).

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Nicholson, P. D.0000-0003-2275-4463
Additional Information:© 2005 Elsevier Inc. Received 1 November 2004, Revised 3 March 2005, Available online 25 April 2005. We thank the staff of Palomar Observatory for their help in making the observations and M. Neugebauer and D. Behkne for help with the manuscript and E. Harrison and J.R. Spencer for helpful comments. This work was supported by the NSF.
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Subject Keywords:Satellites of Saturn; Infrared observations; Planetary rings; Saturn; Eclipses
Issue or Number:1
Record Number:CaltechAUTHORS:20170209-103945183
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Official Citation:G. Neugebauer, K. Matthews, P.D. Nicholson, B.T. Soifer, I. Gatley, S.V.W. Beckwith, Thermal response of Iapetus to an eclipse by Saturn's rings, Icarus, Volume 177, Issue 1, September 2005, Pages 63-68, ISSN 0019-1035, (//
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:74191
Deposited By: Ruth Sustaita
Deposited On:09 Feb 2017 19:03
Last Modified:11 Mar 2020 23:05

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