The study of ultraluminous X-ray sources (ULXs) has changed dramatically over the last
decade. In this review we first describe the most important observations of ULXs in various …

Black hole and neutron star X-ray binary systems routinely show quasi-periodic oscillations
(QPOs) in their X-ray flux. Despite being strong, easily measurable signals, their physical …

We present multiwavelength fast timing observations of the black hole X-ray binary MAXI
J1820+ 070 (ASASSN-18ey), taken with the Karl G. Jansky Very Large Array (VLA) …

Accretion disks around compact objects are expected to enter an unstable phase at high
luminosity. One instability may occur when the radiation pressure generated by accretion …

We present a straightforward argument for why the luminous, hard state of black hole X-ray
binaries (BHXRBs) cannot always be associated with a magnetically arrested accretion disc …

We present an intensive radio and X-ray monitoring campaign on the 2009 outburst of the
Galactic black hole candidate X-ray binary H1743− 322. With the high angular resolution of …

In X-ray binaries, compact jets are known to commonly radiate at radio to infrared
frequencies, whereas at optical to γ-ray energies, the contribution of the jet is debated. The …

Many X-ray binaries remain undetected in the mid-infrared, a regime where emission from
their compact jets is likely to dominate. Here, we report the detection of the black hole binary …

In this paper we compile the analysis of∼ 200 synchrotron flare events from∼ 90 distinct
objects/events for which the distance is well established, and hence the peak luminosity can …

Relativistic plasma jets are observed in many systems that host accreting black holes.
According to theory, coiled magnetic fields close to the black hole accelerate and collimate …