@article{2067bb9c98a448f5ab9c72e3055d1576,
title = "Arecibo radar observations of Phobos and Deimos",
abstract = "In November 2005, we observed the moons of Mars using the Arecibo 2380-MHz (13-cm) radar, obtaining a result for the OC radar albedo of Phobos (0.056 ± 0.014) consistent with its previously reported radar albedo and implying an upper bound on its near-surface bulk density of 1.6 ± 0.3 g cm-3. We detected Deimos by radar for the first time, finding its OC radar albedo to be 0.021 ± 0.006, implying an upper bound on its near-surface density of 1.1 ± 0.3 g cm-3, consistent with a high-porosity regolith. We briefly discuss reasons for these low radar albedos, Deimos' being possibly the lowest of any Solar System body yet observed by radar.",
keywords = "Mars, Radar observations, Regoliths, satellites",
author = "Busch, \{Michael W.\} and Ostro, \{Steven J.\} and Benner, \{Lance A.M.\} and Giorgini, \{Jon D.\} and Christopher Magri and Howell, \{Ellen S.\} and Nolan, \{Michael C.\} and Hine, \{Alice A.\} and Campbell, \{Donald B.\} and Shapiro, \{Irwin I.\} and Chandler, \{John F.\}",
note = "Funding Information: We thank P. Thomas for providing digital shape models of Phobos and Deimos. We thank the Arecibo technical staff for help with the observations. The Arecibo Observatory is part of the National Astronomy and Ionosphere Center, which is operated by Cornell University under a cooperative agreement with the National Science Foundation. C. Magri was partially supported by NSF Grant AST-0205975. J.F. Chandler and I.I. Shapiro were supported in part by NASA Grant NAGW-967. Part of this work was performed at the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration (NASA). This material is based in part upon work supported by NASA under the Science Mission Directorate Research and Analysis Programs.",
year = "2007",
month = feb,
doi = "10.1016/j.icarus.2006.11.003",
language = "English (US)",
volume = "186",
pages = "581--584",
journal = "Icarus",
issn = "0019-1035",
publisher = "Academic Press Inc.",
number = "2",
}