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PATOKA: Simulating Electromagnetic Observables of Black Hole Accretion

Journal Article · · The Astrophysical Journal. Supplement Series
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Abstract

The Event Horizon Telescope (EHT) has released analyses of reconstructed images of horizon-scale millimeter emission near the supermassive black hole at the center of the M87 galaxy. Parts of the analyses made use of a large library of synthetic black hole images and spectra, which were produced using numerical general relativistic magnetohydrodynamics fluid simulations and polarized ray tracing. In this article, we describe the PATOKA pipeline, which was used to generate the Illinois contribution to the EHT simulation library. We begin by describing the relevant accretion systems and radiative processes. We then describe the details of the three numerical codes we use, iharm , ipole , and igrmonty , paying particular attention to differences between the current generation of the codes and the originally published versions. Finally, we provide a brief overview of simulated data as produced by PATOKA and conclude with a discussion of limitations and future directions.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
National Science Foundation (NSF); Netherlands Organization for Scientific Research (NWO); USDOE; USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1863140
Alternate ID(s):
OSTI ID: 2008273
Report Number(s):
LA-UR--21-28826
Journal Information:
The Astrophysical Journal. Supplement Series, Journal Name: The Astrophysical Journal. Supplement Series Journal Issue: 2 Vol. 259; ISSN 0067-0049
Publisher:
American Astronomical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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First M87 Event Horizon Telescope Results. II. Array and Instrumentation journal April 2019
First M87 Event Horizon Telescope Results. IV. Imaging the Central Supermassive Black Hole journal April 2019
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole journal April 2019
First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring journal April 2019
First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole journal April 2019
A Retrograde Spin of the Black Hole in MAXI J1659–152 journal January 2020
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First M87 Event Horizon Telescope Results. VII. Polarization of the Ring journal March 2021
Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope Campaign journal April 2021
Black Hole Flares: Ejection of Accreted Magnetic Flux through 3D Plasmoid-mediated Reconnection journal January 2022

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