Browsing Astronomy and Astrophysics by Title
Now showing items 100-119 of 195
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Measuring the numerical viscosity in simulations of protoplanetary disks in Cartesian grids
(EDP Sciences, 2023-10)Context. Hydrodynamical simulations solve the governing equations on a discrete grid of space and time. This discretization causes numerical diffusion similar to a physical viscous diffusion, whose magnitude is often ... -
The Method of Images in Cosmology
We apply the method of images to the exact initial data for cosmological models that contain a number of regularly arranged discrete masses. This allows us to join cosmological regions together by throats, and to construct ... -
Migration of low-mass planets in inviscid discs: the effect of radiation transport on the dynamical corotation torque
(Oxford University Press (OUP), 2024-02-15)Low-mass planets migrate in the type-I regime. In the inviscid limit, the contrast between the vortensity trapped inside the planet’s corotating region and the background disc vortensity leads to a dynamical corotation ... -
Minimal distances between SCFTs
(2014-01-28) -
MISALIGNED DISKS IN THE BINARY PROTOSTAR IRS 43
(2016-10-10) -
Modified Gravity and Cosmology
In this review we present a thoroughly comprehensive survey of recent work on modified theories of gravity and their cosmological consequences. Amongst other things, we cover General Relativity, Scalar-Tensor, Einstein-Aether, ... -
Nekrasov-Shatashvili limit of the 5D superconformal index
(2016-08-08) -
Non-Gaussianity in multiple three-form field inflation
(2016-11-07)