Atmospheric/Exospheric Characteristics of Icy Satellites

2010 ◽  
pp. 153-182
Author(s):  
A. Coustenis ◽  
T. Tokano ◽  
M. H. Burger ◽  
T. A. Cassidy ◽  
R. M. Lopes ◽  
...  
Keyword(s):  
Icy Satellites

FORMING RIDGE-AND-TROUGH SYSTEMS ON ICY SATELLITES: INSIGHTS FROM PHYSICAL ANALOGUE MODELING

2018 ◽  
Author(s):  
Erin Leonard ◽  
◽  
Robert T. Pappalardo ◽  
An Yin
Keyword(s):  
Icy Satellites ◽  
Analogue Modeling

Shapes of the saturnian icy satellites and their significance

Icarus ◽  
2007 ◽  
Vol 190 (2) ◽  
pp. 573-584 ◽  
Author(s):  
P THOMAS ◽  
J BURNS ◽  
P HELFENSTEIN ◽  
S SQUYRES ◽  
J VEVERKA ◽  
...  
Keyword(s):  
Icy Satellites

Uniform parameterized theory of convection in medium sized icy satellites of Saturn

2009 ◽  
Vol 57 (2) ◽  
pp. 548-566 ◽  
Author(s):  
Leszek Czechowski
Keyword(s):  
Icy Satellites

Nonlinear tidal dissipation in the subsurface oceans of Enceladus and other icy satellites

Icarus ◽  
2019 ◽  
Vol 319 ◽  
pp. 68-85 ◽  
Author(s):  
Hamish C.F.C. Hay ◽  
Isamu Matsuyama
Keyword(s):  
Icy Satellites ◽  
Tidal Dissipation

scholarly journals Saturn's icy satellites

2005 ◽  
Vol 46 (4) ◽  
pp. 4.22-4.22
Author(s):  
Hazel McAndrews
Keyword(s):  
Icy Satellites

scholarly journals Isothermal equation of state and high-pressure phase transitions of synthetic meridianiite (MgSO4·11D2O) determined by neutron powder diffraction and quasielastic neutron spectroscopy

2017 ◽  
Vol 73 (1) ◽  
pp. 33-46 ◽  
Author(s):  
A. Dominic Fortes ◽  
Felix Fernandez-Alonso ◽  
Matthew Tucker ◽  
Ian G. Wood
Keyword(s):  
High Pressure ◽  
Phase Transitions ◽  
Equation Of State ◽  
Powder Diffraction ◽  
Diffraction Data ◽  
Neutron Powder Diffraction ◽  
Bulk Liquid ◽  
Icy Satellites ◽  
Neutron Spallation Source ◽  
Quasielastic Neutron

We have collected neutron powder diffraction data from MgSO4·11D2O (the deuterated analogue of meridianiite), a highly hydrated sulfate salt that is thought to be a candidate rock-forming mineral in some icy satellites of the outer solar system. Our measurements, made using the PEARL/HiPr and OSIRIS instruments at the ISIS neutron spallation source, covered the range 0.1 < P < 800 MPa and 150 < T < 280 K. The refined unit-cell volumes as a function of P and T are parameterized in the form of a Murnaghan integrated linear equation of state having a zero-pressure volume V 0 = 706.23 (8) Å3, zero-pressure bulk modulus K 0 = 19.9 (4) GPa and its first pressure derivative, K′ = 9 (1). The structure's compressibility is highly anisotropic, as expected, with the three principal directions of the unit-strain tensor having compressibilities of 9.6 × 10−3, 3.4 × 10−2 and 3.4 × 10−3 GPa−1, the most compressible direction being perpendicular to the long axis of a discrete hexadecameric water cluster, (D2O)16. At high pressure we observed two different phase transitions. First, warming of MgSO4·11D2O at 545 MPa resulted in a change in the diffraction pattern at 275 K consistent with partial (peritectic) melting; quasielastic neutron spectra collected simultaneously evince the onset of the reorientational motion of D2O molecules with characteristic time-scales of 20–30 ps, longer than those found in bulk liquid water at the same temperature and commensurate with the lifetime of solvent-separated ion pairs in aqueous MgSO4. Second, at ∼ 0.9 GPa, 240 K, MgSO4·11D2O decomposed into high-pressure water ice phase VI and MgSO4·9D2O, a recently discovered phase that has hitherto only been formed at ambient pressure by quenching small droplets of MgSO4(aq) in liquid nitrogen. The fate of the high-pressure enneahydrate on further compression and warming is not clear from the neutron diffraction data, but its occurrence indicates that it may also be a rock-forming mineral in the deep mantles of large icy satellites.

The Shapes and Strengths of Small Icy Satellites

1985 ◽  
pp. 699-710 ◽  
Author(s):  
P. Farinella ◽  
A. Milani ◽  
A. M. Nobili ◽  
P. Paolicchi ◽  
V. Zappala
Keyword(s):  
Icy Satellites

Effects of the External Environment on Icy Satellites

2010 ◽  
pp. 347-372
Author(s):  
Matthew H. Burger ◽  
Roland Wagner ◽  
Ralf Jaumann ◽  
Timothy A. Cassidy
Keyword(s):  
External Environment ◽  
Icy Satellites
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