publication . Article . Other literature type . 2016

PERMITTIVITY OF POROUS ICE-DUST MIXTURES

Y. Brouet; L. Neves; P. Sabouroux; A. C. Levasseur-Regourd; O. Poch; P. Encrenaz; A. Pommerol; N. Thomas; W. Kofman;
Open Access English
  • Published: 01 Jan 2016
  • Publisher: HAL CCSD
Abstract
The internal properties of porous and icy bodies in the solar system can be investigated by ground-penetrating radars (GPRs), like the COmet Nucleus Sounding Experiment by Radiowave Transmission instrument on board the Rosetta spacecraft which has sounded the interior of the nucleus of comet 67P/Churyumov-Gerasimenko. Accurate constraints on the permittivity of icy media are needed for the interpretation of the data. We report novel permittivity measurements performed on water ice samples and icy mixtures with porosities in the 31–91% range. The measurements have been performed between 50 MHz and 2 GHz with a coaxial cell on a total of 38 samples with a good rep...
Subjects
free text keywords: comets, permittivity, ice, small bodies, radar, porous media, [SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP], [SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR], 620 Engineering, 530 Physics, 520 Astronomy
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