Phil Arras

TL;DR: In this article, the authors present a comprehensive treatment of the linear modes of a hydrodynamic, non-self-gravitating, polytropic slender torus, with arbitrary specific angular momentum distribution, orbiting in an arbitrary axisymmetric space-time with reflection symmetry.

TL;DR: In this article, the periodic flux modulations arising from the tidal force on the star due to a substellar companion are discussed in detail and an analytic expression for the variability is derived in the equilibrium-tide approximation.

TL;DR: In this paper, the authors consider the thermal structure and radii of strongly irradiated gas giant planets over a range in mass and irradiating flux and find that the cooling rate of the planet is sensitive to the surface boundary condition, which depends on the detailed manner in which starlight is absorbed and energy redistributed by fluid motion.

TL;DR: In this article, the authors examined the structure of the magnetosphere using a 3D isothermal magnetohydrodynamic model that includes a static dead zone near the magnetic equator containing gas confined by the magnetic field, a wind zone outside the magnetic axis in which thermal pressure gradients and the magneto-centrifugal-tidal effect give rise to a transonic outflow, and a region near the poles where sufficiently strong tidal forces may suppress transonic flow.

TL;DR: A review of different escape mechanisms for the evolution of planetary and exoplanetary atmospheres can be found in this article, where the important parameters to take into account when evaluating the escape at a planet in time.