4 papers
Non-Equilibrium Thermodynamics of Black-Hole Coronae: QPOs, Turbulence, and Jets
Vanessa López-Barquero, Alejandro Jenkins, Christopher S. Reynolds +1
The variability of X-rays observed from accreting black hole systems, including quasi-periodic oscillations (QPOs), suggests a complex nonlinear dynamics in the corona. Here, we pr…
Disk warping and black hole X-ray binaries I. Tentative unification of low-frequency quasi-periodic oscillations
Gregoire Marcel, Samuel Turner, Benjamin Ricketts +6
X-ray binaries exhibit complex variability patterns studied in the power-spectrum. These include the broad-band noise (BBN) components and various types of narrow components called…
Spin Demographics of Active Supermassive Black Holes: Updated Estimates from X-ray reflection and Future opportunities
Julia M. Sisk-Reynes, Christopher S. Reynolds, James H. Matthews +5
Understanding the growth of supermassive black holes (SMBHs) requires observational constraints on how their angular momentum (or spin) varies with mass, since the relative importa…
Evidence for Supermassive Black Hole Binaries
Martin G. H. Krause, Martin A. Bourne, Silke Britzen +10
We review the state of the evidence for the existence and observational appearance of supermassive black hole binaries. Such objects are expected from standard hierarchical galaxy…