[HTML][HTML] First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring

K Akiyama, A Alberdi, W Alef, JC Algaba… - The Astrophysical …, 2024 - iopscience.iop.org
First Sagittarius A* Event Horizon Telescope Results. VII. Polarization of the Ring - IOPscience
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Relativistic reflection modeling in AGN and related variability from PCA: a brief review

A Danehkar - Frontiers in Astronomy and Space Sciences, 2024 - frontiersin.org
X-ray observations of active galactic nuclei (AGNs) reveal relativistic reflections from the
innermost regions of accretion disks, which contain general-relativistic footprints caused by …

Detecting axion dark matter with black hole polarimetry

X Gan, LT Wang, H **ao - Physical Review D, 2024 - APS
The axion, as a leading dark matter candidate, is the target of many ongoing and proposed
experimental searches based on its coupling to photons. Ultralight axions that couple to …

The japanese vision for the black hole explorer mission

K Akiyama, K Niinuma, K Hada, A Doi… - Space Telescopes …, 2024 - spiedigitallibrary.org
The Black Hole Explorer (BHEX) is a next-generation space very long baseline
interferometry (VLBI) mission concept that will extend the ground-based millimeter …

Measuring Black Hole Light Echoes with Very Long Baseline Interferometry

GN Wong, L Medeiros… - The Astrophysical …, 2024 - iopscience.iop.org
Light passing near a black hole can follow multiple paths from an emission source to an
observer due to strong gravitational lensing. Photons following different paths take different …

Prospects for the Detection of the Sgr A* Photon Ring with Next-generation Event Horizon Telescope Polarimetry

KM Shavelle, DCM Palumbo - The Astrophysical Journal Letters, 2024 - iopscience.iop.org
Abstract The Event Horizon Telescope (EHT) has imaged two supermassive black holes,
Messier 87*(M87*) and Sagittarius A*(Sgr A*), using very-long-baseline interferometry …

Constraints on the black-hole charges of M87* and Sagittarius A* by changing rates of photon spheres can be relaxed

N Tsukamoto, R Kase - Physical Review D, 2024 - APS
The Event Horizon Telescope (EHT) Collaboration observed ring images called the
shadows of M87* and Sagittarius A*(Sgr A*), which are supermassive objects in M87 and …

Prospects of Detecting a Jet in Sagittarius A* with Very-long-baseline Interferometry

E Chavez, S Issaoun, MD Johnson… - The Astrophysical …, 2024 - iopscience.iop.org
Abstract Event Horizon Telescope (EHT) images of the horizon-scale emission around the
Galactic center supermassive black hole Sagittarius A*(Sgr A*) favor accretion flow models …

Shadow behavior of an EMSG charged black hole

F Aliyan, K Nozari - Physics of the Dark Universe, 2024 - Elsevier
Recent shadow images of Sgr A* and M87* captured by Event Horizon Telescope (EHT)
collaboration confirm the existence of black holes or their possible alternatives in the center …

Magnetically Arrested Circumbinary Accretion Flows

ER Most, HY Wang - The Astrophysical Journal Letters, 2024 - iopscience.iop.org
Binary systems with comparable masses and a surrounding accretion disk can accrete gas
through spiral accretion streams penetrating the central cavity formed by tidal interactions …