Simulating X-ray Binary Winds

Simulating X-ray Binary Winds

In today’s paper, Čechura and Hadrava examine what happens to the runaway gas from the surface of massive stars—the stellar wind. In particular, they look at systems with massive stars so close to a companion neutron star or black hole that the stellar wind is jarred into a new orbit and heated to the point of emitting X-rays.

Orderly disorder: Simulations of planet-disk dynamics with AREPO

Orderly disorder: Simulations of planet-disk dynamics with AREPO

Only the combined effort of observational and theoretical methods can really bring us to a more thorough understanding of the Universe throughout all spatial scales. The authors of today’s paper use and adapt the moving-mesh fluid mechanics code AREPO to function with protoplanetary disks and test its imprint on the potential of planets to open up gaps in the surrounding gas.