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 …
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 …
Polarized x-rays constrain the disk-jet geometry in the black hole x-ray binary Cygnus X-1
H Krawczynski, F Muleri, M Dovčiak, A Veledina… - Science, 2022 - science.org
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 …
An embedded X-ray source shines through the aspherical AT 2018cow: revealing the inner workings of the most luminous fast-evolving optical transients
R Margutti, BD Metzger, R Chornock… - The Astrophysical …, 2019 - iopscience.iop.org
We present the first extensive radio to γ-ray observations of a fast-rising blue optical
transient, AT 2018cow, over its first∼ 100 days. AT 2018cow rose over a few days to a peak …
transient, AT 2018cow, over its first∼ 100 days. AT 2018cow rose over a few days to a peak …
Traversable wormhole geometries in gravity
The current interests in the universe motivate us to go beyond Einstein's General theory of
relativity. One of the interesting proposals comes from a new class of teleparallel gravity …
relativity. One of the interesting proposals comes from a new class of teleparallel gravity …
Properties of AGN coronae in the NuSTAR era
The focusing optics of NuSTAR have enabled high signal-to-noise ratio spectra to be
obtained from many X-ray bright active galactic nuclei (AGN) and galactic black hole …
obtained from many X-ray bright active galactic nuclei (AGN) and galactic black hole …
[HTML][HTML] Complexity-free solution generated by gravitational decoupling for anisotropic self-gravitating star in symmetric teleparallel f (Q)-gravity theory
In this work, we attempt to find an anisotropic solution for a compact star generated by
gravitational decoupling in f (Q)-gravity theory having a null complexity factor. To do this, we …
gravitational decoupling in f (Q)-gravity theory having a null complexity factor. To do this, we …
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 …
A quasi-periodic modulation of the iron line centroid energy in the black hole binary H1743− 322
A Ingram, M van der Klis, M Middleton… - Monthly Notices of …, 2016 - academic.oup.com
Accreting stellar-mass black holes often show a 'Type-C'quasi-periodic oscillation (QPO) in
their X-ray flux and an iron emission line in their X-ray spectrum. The iron line is generated …
their X-ray flux and an iron emission line in their X-ray spectrum. The iron line is generated …
Testing wormhole solutions in extended gravity through the Poynting-Robertson effect
We develop a model-independent procedure to single out static and spherically symmetric
wormhole solutions based on the general relativistic Poynting-Robertson effect and the …
wormhole solutions based on the general relativistic Poynting-Robertson effect and the …