Luminous accreting stellar mass and supermassive black holes produce power–law
continuum X-ray emission from a compact central corona. Reverberation time lags occur …

▪ Abstract The first millisecond X-ray variability phenomena from accreting compact objects
have recently been discovered with the Rossi X-ray Timing Explorer. Three new phenomena …

Accreting black holes emit highly collimated radio jets expanding at speeds approaching
light speed. Some of these jets appear to be expanding at superluminal speeds due to …

The hard state of X-ray binaries (XRBs) is characterized by a power-law spectrum in the X-
ray band and a flat/inverted radio/IR spectrum associated with occasionally imaged compact …

Relativistic reflection features are commonly observed in the X-ray spectra of accreting black
holes. In the presence of high quality data and with the correct astrophysical model, X-ray …

Abstract We develop a Monte Carlo technique to test models for the true power spectra of
intermittently sampled light curves against the noisy, observed power spectra, and produce …

Low-frequency quasiperiodic oscillations (LFQPOs) are commonly found in black hole X-ray
binaries, and their origin is still under debate. The properties of LFQPOs at high energies …

Abstract Four persistent (Cygnus X-1, GX 339− 4, GRS 1758− 258 and 1E 1740.7− 2942)
and three transient (GS 2023+ 38, GRO J0422+ 32 and GS 1354− 64) black hole X-ray …

We show that the rms–flux relation recently discovered in the X-ray light curves of active
galactic nuclei (AGN) and X-ray binaries (XRBs) implies that the light curves have a formally …

X-ray reverberation, where light-travel time delays map out the compact geometry around
the inner accretion flow in supermassive black holes, has been discovered in several of the …