Bridging the bondi and event horizon scales: 3d grmhd simulations reveal x-shaped radio galaxy morphology
X-shaped radio galaxies (XRGs) produce misaligned X-shaped jet pairs and make up≲ 10%
of radio galaxies. XRGs are thought to emerge in galaxies featuring a binary supermassive …
of radio galaxies. XRGs are thought to emerge in galaxies featuring a binary supermassive …
Alive but Barely Kicking: News from 3+ yr of Swift and XMM-Newton X-Ray Monitoring of Quasiperiodic Eruptions from eRO-QPE1
DR Pasham, ER Coughlin, M Zajaček… - The Astrophysical …, 2024 - iopscience.iop.org
Quasiperiodic eruptions (QPEs) represent a novel class of extragalactic X-ray transients that
are known to repeat at roughly regular intervals of a few hours to days. Their underlying …
are known to repeat at roughly regular intervals of a few hours to days. Their underlying …
The effects of gas angular momentum on the formation of magnetically arrested disks and the launching of powerful jets
In this letter, we investigate Bondi-like accretion flows with zero or low specific angular
momentum by performing 3D general relativistic magnetohydrodynamic simulations. In …
momentum by performing 3D general relativistic magnetohydrodynamic simulations. In …
Truncated accretion discs in black hole X-ray binaries: dynamics and variability signatures
Variable features in black hole X-ray binaries (BH-XRBs) are observed in different energy
ranges and time-scales. The physical origin of different spectral states in BH-XRBs and their …
ranges and time-scales. The physical origin of different spectral states in BH-XRBs and their …
General relativistic hydrodynamic simulations of perturbed transonic accretion
HR Olivares, MA Mościbrodzka, O Porth - Astronomy & Astrophysics, 2023 - aanda.org
Contact. Comparing horizon-scale observations of Sgr A* and M 87* with numerical
simulations has provided considerable insight into their interpretation. Most of these …
simulations has provided considerable insight into their interpretation. Most of these …
Three-dimensional simulations of advective, sub-Keplerian accretion flow on to non-rotating black holes
SK Garain, J Kim - Monthly Notices of the Royal Astronomical …, 2023 - academic.oup.com
We study the time evolution of sub-Keplerian transonic accretion flow on to a non-rotating
black hole using a three-dimensional, inviscid hydrodynamics simulation code. Prior two …
black hole using a three-dimensional, inviscid hydrodynamics simulation code. Prior two …
Dynamical Properties of Magnetized Low-angular-momentum Accretion Flows around a Kerr Black Hole
IK Dihingia, Y Mizuno - The Astrophysical Journal, 2024 - iopscience.iop.org
An essential factor for determining the characteristics of an accretion flow is its angular
momentum. According to the angular momentum of the flow, semi-analytical analysis …
momentum. According to the angular momentum of the flow, semi-analytical analysis …
Study of relativistic accretion flow around KTN black hole with shocks
We present the global solutions of low angular momentum, inviscid, advective accretion flow
around Kerr-Taub-NUT (KTN) black hole in presence and absence of shock waves. These …
around Kerr-Taub-NUT (KTN) black hole in presence and absence of shock waves. These …
On the maximum stellar rotation to form a black hole without an accompanying luminous transient
The collapse of a massive star with low angular momentum content is commonly thought to
result in the formation of a black hole without an accompanying bright transient. Our goal in …
result in the formation of a black hole without an accompanying bright transient. Our goal in …
Shocks in relativistic viscous accretion flows around Kerr black holes
We study the relativistic viscous accretion flows around the Kerr black holes. We present the
governing equations that describe the steady-state flow motion in full general relativity and …
governing equations that describe the steady-state flow motion in full general relativity and …