A review of quasi-periodic oscillations from black hole X-ray binaries: observation and theory
AR Ingram, SE Motta - New Astronomy Reviews, 2019 - Elsevier
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 …
(QPOs) in their X-ray flux. Despite being strong, easily measurable signals, their physical …
Towards precision measurements of accreting black holes using X-ray reflection spectroscopy
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 …
holes. In the presence of high quality data and with the correct astrophysical model, X-ray …
Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1
A black hole x-ray binary (XRB) system forms when gas is stripped from a normal star and
accretes onto a black hole, which heats the gas sufficiently to emit x-rays. We report a …
accretes onto a black hole, which heats the gas sufficiently to emit x-rays. We report a …
Improved reflection models of black hole accretion disks: treating the angular distribution of X-rays
ABSTRACT X-ray reflection models are used to constrain the properties of the accretion
disk, such as the degree of ionization of the gas and the elemental abundances. In …
disk, such as the degree of ionization of the gas and the elemental abundances. In …
The role of the reflection fraction in constraining black hole spin
In many active galaxies, the X-ray reflection features from the innermost regions of the
accretion disc are relativistically distorted. This distortion allows us to measure parameters of …
accretion disc are relativistically distorted. This distortion allows us to measure parameters of …
The X-ray polarization of the Seyfert 1 galaxy IC 4329A
We present an X-ray spectro-polarimetric analysis of the bright Seyfert galaxy IC 4329A. The
Imaging X-ray Polarimetry Explorer (IXPE) observed the source for∼ 500 ks, supported by …
Imaging X-ray Polarimetry Explorer (IXPE) observed the source for∼ 500 ks, supported by …
The masses and spins of neutron stars and stellar-mass black holes
MC Miller, JM Miller - Physics Reports, 2015 - Elsevier
Stellar-mass black holes and neutron stars represent extremes in gravity, density, and
magnetic fields. They therefore serve as key objects in the study of multiple frontiers of …
magnetic fields. They therefore serve as key objects in the study of multiple frontiers of …
Black hole feedback in the luminous quasar PDS 456
E Nardini, JN Reeves, J Gofford, FA Harrison, G Risaliti… - Science, 2015 - science.org
The evolution of galaxies is connected to the growth of supermassive black holes in their
centers. During the quasar phase, a huge luminosity is released as matter falls onto the …
centers. During the quasar phase, a huge luminosity is released as matter falls onto the …
Light bending and X-ray echoes from behind a supermassive black hole
DR Wilkins, LC Gallo, E Costantini, WN Brandt… - Nature, 2021 - nature.com
The innermost regions of accretion disks around black holes are strongly irradiated by X-
rays that are emitted from a highly variable, compact corona, in the immediate vicinity of the …
rays that are emitted from a highly variable, compact corona, in the immediate vicinity of the …
Polarization constraints on the X-ray corona in Seyfert Galaxies: MCG-05-23-16
A Marinucci, F Muleri, M Dovciak… - Monthly Notices of …, 2022 - academic.oup.com
We report on the first observation of a radio-quiet active galactic nucleus (AGN) in polarized
X-rays: the Seyfert 1.9 galaxy MCG-05-23-16. This source was pointed at with the Imaging X …
X-rays: the Seyfert 1.9 galaxy MCG-05-23-16. This source was pointed at with the Imaging X …