The fundamental physics of magnetic reconnection in laboratory and space plasmas is
reviewed by discussing results from theory, numerical simulations, observations from space …

Black hole accretion flows can be divided into two broad classes: cold and hot. Whereas
cold accretion flows consist of cool optically thick gas and are found at relatively high mass …

Aims. Recent observations by the Atacama Large Millimeter/submillimeter Array (ALMA) of
disks around young stars revealed distinct asymmetries in the dust continuum emission. In …

Fully general relativistic models of astrophysical sources are in high demand, not only since
the discovery of gravitational waves emitted from merging stellar mass black holes (Abbott et …

These lecture notes are based on a tutorial given in 2017 at a plasma physics winter school
in Les Houches. Their aim is to provide a self-contained graduate-student level introduction …

Protoplanetary disks are quasi-steady structures whose evolution and dispersal determine
the environment for planet formation. I review the theory of protoplanetary disk evolution and …

We present the results of a high angular resolution (0 farcs 3≈ 40 AU) Submillimeter Array
survey of the 345 GHz (870 μm) thermal continuum emission from nine of the brightest, and …

Magnetic reconnection is a topological rearrangement of magnetic field that converts
magnetic energy to plasma energy. Astrophysical flares, from the Earth's magnetosphere to …

We present new results from a significant extension of our previous high angular resolution
(0 farcs 3≈ 40 AU) submillimeter array survey of the 340 GHz (880 μm) thermal continuum …

We study the behavior of magnetorotational turbulence in shearing box simulations with a
radial and azimuthal extent up to 10 scale heights. Maxwell and Reynolds stresses are …