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Träfflista för sökning "WFRF:(Spohn T.) srt2:(2020-2023)"

Sökning: WFRF:(Spohn T.) > (2020-2023)

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1.
  • Mueller, N., et al. (författare)
  • Near Surface Properties of Martian Regolith Derived From InSight HP3-RAD Temperature Observations During Phobos Transits
  • 2021
  • Ingår i: Geophysical Research Letters. - : John Wiley & Sons. - 0094-8276 .- 1944-8007. ; 48:15
  • Tidskriftsartikel (refereegranskat)abstract
    • We use the Martian surface temperature response to Phobos transits observed next to the InSight lander in Elysium Planitia to constrain the thermal properties of the uppermost layer of regolith. Modeled transit lightcurves validated by solar panel current measurements are used to modify the boundary conditions of a 1D heat conduction model. We test several model parameter sets, varying the thickness and thermal conductivity of the top layer to explore the range of parameters that match the observed temperature response within its uncertainty both during the eclipse as well as the full diurnal cycle. The measurements indicate a thermal inertia (TI) of    in the uppermost layer of 0.2–4 mm, significantly smaller than the TI of   derived from the diurnal temperature curve. This could be explained by larger particles, higher density, or some or slightly higher amount of cementation in the lower layers.
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3.
  • Mazzuca, Guido, et al. (författare)
  • Equilibrium Spacetime Correlations of the Toda Lattice on the Hydrodynamic Scale
  • 2023
  • Ingår i: Journal of statistical physics. - : Springer Nature. - 0022-4715 .- 1572-9613. ; 190:8
  • Tidskriftsartikel (refereegranskat)abstract
    • We report on molecular dynamics simulations of spacetime correlations of the Toda lattice in thermal equilibrium. The correlations of stretch, momentum, and energy are computed numerically over a wide range of pressure and temperature. Our numerical results are compared with the predictions from linearized generalized hydrodynamics on the Euler scale. The system size is N= 3000 , 4000 and time t= 600 , at which ballistic scaling is well confirmed. With no adjustable parameters, the numerically obtained scaling functions agree with the theory within a precision of less than 3.5%.
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  • Resultat 1-3 av 3

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