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Orbital Decay in Binaries Containing Post-Main Sequence Stars
Meng Sun, Phil Arras, Nevin N. Weinberg +2
The orbital decay of binaries containing a primary sub-giant or red giant star and a stellar or substellar companion is investigated. The tide raised in the primary by the companio…
Nonlinear Mixed Modes in Red Giants
Nevin N. Weinberg, Phil Arras
Turbulent motions in the convective envelope of red giants excite a rich spectrum of solar-like oscillation modes. Observations by CoRoT and Kepler have shown that the mode amplitu…
Urca reactions during neutron star inspiral
Phil Arras, Nevin N. Weinberg
We study the impact of nonlinear bulk viscosity due to Urca reactions driven by tidally-induced fluid motion during binary neutron star inspiral. Fluid compression is computed for…
Radio Imaging With Information Field Theory
Philipp Arras, Jakob Knollmüller, Henrik Junklewitz +1
Data from radio interferometers provide a substantial challenge for statisticians. It is incomplete, noise-dominated and originates from a non-trivial measurement process. The sign…