First M87 Event Horizon Telescope Results. V. Physical Origin of the Asymmetric Ring
Woodwell Climate Research Center · Harvard University · +78 more institutions
Indexed inarxivcrossrefdoaj
Abstract
Abstract The Event Horizon Telescope (EHT) has mapped the central compact radio source of the elliptical galaxy M87 at 1.3 mm with unprecedented angular resolution. Here we consider the physical implications of the asymmetric ring seen in the 2017 EHT data. To this end, we construct a large library of models based on general relativistic magnetohydrodynamic (GRMHD) simulations and synthetic images produced by general relativistic ray tracing. We compare the observed visibilities with this library and confirm that the asymmetric ring is consistent with earlier predictions of strong gravitational lensing of synchrotron emission from a hot plasma orbiting near the black hole event horizon. The ring radius and…
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Authors
221- KAKazunori AkiyamaCorresponding
Woodwell Climate Research Center, Harvard University, National Radio Astronomy Observatory, National Astronomical Observatory of Japan, Massachusetts Institute of Technology
- AAA. Alberdi
Instituto de Astrofísica de Andalucía
- WAW. Alef
Max Planck Institute for Radio Astronomy
- KAKeiichi Asada
Institute of Astronomy and Astrophysics, Academia Sinica
- RARebecca Azulay
Universitat de València, Parc Científic de la Universitat de València, Max Planck Institute for Radio Astronomy
Topics & keywords
Topics
Keywords
- Physics
- Event horizon
- Black hole (networking)
- Supermassive black hole
- Astrophysics
- Schwarzschild radius
- Kerr metric
- Rotating black hole
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