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20242026
most citedKHARMA: Flexible, Portable Performance for GRMHD

5 citations · 5 across the 9 of their papers we have counts for

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astro-ph.HE2026

Image Morphology of Misaligned Magnetically Arrested Disks

Samuel Feyan, Cora Prather, Dominic O. Chang +3

Horizon scale images probe the plasma dynamics and spacetime in the vicinity of accreting black holes. Interpreting these images requires models that connect image morphology to th…

astro-ph.GA2026

Dynamics and geometry of the inner sub-parsec-scale jet in 3C 279 observed with the Event Horizon Telescope

Hendrik Mueller, Sebastiano D. von Fellenberg, Ai-Ling Zeng +275

The 2021 Event Horizon Telescope observations resolve the innermost jet region of the blazar 3C279 with unprecedented detail. The reconstructed images consistently reveal a compact…

astro-ph.HE2026

Ring Position Angles and Spin in M87* and Sgr A*

Nicholas S. Conroy, Michi Bauböck, Vadim Bernshteyn +4

Event Horizon Telescope (EHT) images of black holes appear as rings with a brightness asymmetry. Here, we expand on our previous study of the asymmetry magnitude to study the…

astro-ph.HE2026

Supermassive Black Holes: modelling strongly and weakly magnetised misaligned accretion disks

Joshua Samuel Stanway, Cora Prather, Derek Ward-Thompson +3

In this paper, we carry out a numerical study of misaligned accretion disks around spinning supermassive black holes. Here, we conduct a parameter survey covering a range of initia…

astro-ph.HE2026

Polarization Signatures from GRMHD Simulations of Black Hole Accretion

P. Chris Fragile, Maciek Wielgus, Cora Prather

This chapter tells the still-unfolding story of extracting polarization signatures from general relativistic magnetohydrodynamics simulations of accretion disks. In some sense, thi…

astro-ph.HE2026

Observational Properties of Near-Maximally Spinning Supermassive Black Holes

Tegan A. Thomas, Angelo Ricarte, Cora Prather +1

Black holes described by the Kerr metric can have a theoretical maximum dimensionless spin parameter of , but several effects may limit the maximum spin parameter in…

astro-ph.HE2026

Sensitivities of Black Hole Images from GRMHD Simulations

Pedro Naethe Motta, Mário Raia Neto, Cora Prather +1

The advent of high-fidelity imaging of supermassive black holes calls for efficient and robust data-analysis methods. In this work, we use , a differentiable, $\te…

astro-ph.HE2026

Observational distinguishability of the Kerr and Kerr-Hayward metrics to EHT

Nikola Bukowiecka, Angelo Ricarte, Prashant Kocherlakota +1

Astrophysical black holes appear well-represented by the Kerr metric, whose maximal analytic extension contains a ringlike curvature singularity. We study a phenomenological regula…

astro-ph.GA2026

Bridging Scales in Black Hole Accretion and Feedback: Subgrid Prescription from First Principles

Hyerin Cho, Ben S. Prather, Ramesh Narayan +4

Understanding how supermassive black holes (BHs) couple to their host galaxies across a vast spatial and temporal dynamic range remains a central challenge in galaxy evolution. Usi…