The persistent shadow of the supermassive black hole of M 87-I. Observations, calibration, imaging, and analysis
In April 2019, the Event Horizon Telescope (EHT) Collaboration reported the first-ever event-
horizon-scale images of a black hole, resolving the central compact radio source in the giant …
horizon-scale images of a black hole, resolving the central compact radio source in the giant …
M 87: a cosmic laboratory for deciphering black hole accretion and jet formation
Over the past decades, there has been significant progress in our understanding of
accreting supermassive black holes (SMBHs) that drive active galactic nuclei (AGNs), both …
accreting supermassive black holes (SMBHs) that drive active galactic nuclei (AGNs), both …
Bondi-Hoyle-Lyttleton accretion around the rotating hairy Horndeski black hole
O Dönmez - Journal of Cosmology and Astroparticle Physics, 2024 - iopscience.iop.org
Modeling of the shock cone formed around a stationary, hairy Horndeski black hole with
Bondi-Hoyle-Lyttleton (BHL) accretion has been conducted. We model the dynamical …
Bondi-Hoyle-Lyttleton (BHL) accretion has been conducted. We model the dynamical …
Jets with a Twist: The Emergence of FR0 Jets in a 3D GRMHD Simulation of Zero-angular-momentum Black Hole Accretion
Spinning supermassive black holes (BHs) in active galactic nuclei magnetically launch
relativistic collimated outflows, or jets. Without angular momentum supply, such jets are …
relativistic collimated outflows, or jets. Without angular momentum supply, such jets are …
Properties of the jet in M87 revealed by its helical structure imaged with the VLBA at 8 and 15 GHz
We present full-track high-resolution radio observations of the jet of the galaxy M87 at 8 and
15 GHz. These observations were taken over three consecutive days in 2009 May using the …
15 GHz. These observations were taken over three consecutive days in 2009 May using the …
[HTML][HTML] Discovery of Limb Brightening in the Parsec-scale Jet of NGC 315 through Global Very Long Baseline Interferometry Observations and Its Implications for Jet …
J Park, GY Zhao, M Nakamura, Y Mizuno… - The Astrophysical …, 2024 - iopscience.iop.org
We report the first observation of the nearby giant radio galaxy NGC 315 using a global very
long baseline interferometry (VLBI) array consisting of 22 radio antennas located across five …
long baseline interferometry (VLBI) array consisting of 22 radio antennas located across five …
Estimating the possible QPOs of M87∗ from the parameters of a hairy Kerr black hole
In this paper, we study the dynamics of the shock cone formed around a hairy Kerr black
hole due to Bondi–Hoyle–Lyttleton (BHL) accretion and investigate the quasi-periodic …
hole due to Bondi–Hoyle–Lyttleton (BHL) accretion and investigate the quasi-periodic …
Radio Images inside Highly Magnetized Jet Funnels Based on Semianalytic GRMHD Models
T Ogihara, T Kawashima, K Ohsuga - The Astrophysical Journal, 2024 - iopscience.iop.org
By performing general-relativistic radiative transfer calculations, we show the radio images
of relativistic jets including highly magnetized regions inside jet funnels, based on steady …
of relativistic jets including highly magnetized regions inside jet funnels, based on steady …
Type-B Energetic Processes: Their Identification and Implications
JW Lee - Symmetry, 2024 - mdpi.com
We have now identified two thermodynamically distinct types (A and B) of energetic
processes naturally occurring on Earth. Type-A energy processes, such as classical heat …
processes naturally occurring on Earth. Type-A energy processes, such as classical heat …
Constraining black hole parameters with the precessing jet nozzle of M87
SW Wei, YC Zou, YP Zhang, YX Liu - Physical Review D, 2024 - APS
Recently, Cui et al.[Nature (London) 621, 711 (2023) NATUAS 0028-0836 10.1038/s41586-
023-06479-6] reported that the jet nozzle of M87* exhibits a precession with a period of …
023-06479-6] reported that the jet nozzle of M87* exhibits a precession with a period of …