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Millimeter/submillimeter VLBI with a Next Generation Large Radio Telescope in the Atacama Desert
Kazunori Akiyama, Jens Kauffmann, Lynn D. Matthews +3
The proposed next generation Event Horizon Telescope (ngEHT) concept envisions the imaging of various astronomical sources on scales of microarcseconds in unprecedented detail with…
Overview of the Observing System and Initial Scientific Accomplishments of the East Asian VLBI Network (EAVN)
Kazunori Akiyama, Juan-Carlos Algaba, Tao An +101
The East Asian VLBI Network (EAVN) is an international VLBI facility in East Asia and is operated under mutual collaboration between East Asian countries, as well as part of Southe…
Diverse Polarimetric Features of AGN Jets from Various Viewing Angles: Towards a Unified View
Yuh Tsunetoe, Shin Mineshige, Tomohisa Kawashima +3
Here, we demonstrate that polarization properties show a wide diversity depending on viewing angles. To simulate images of a supermassive black hole and surrounding plasma, we perf…
Unraveling Twisty Linear Polarization Morphologies in Black Hole Images
Razieh Emami, Angelo Ricarte, George N. Wong +23
We investigate general relativistic magnetohydrodynamic simulations (GRMHD) to determine the physical origin of the twisty patterns of linear polarization seen in spatially resolve…
Resolving the inner parsec of the blazar J1924-2914 with the Event Horizon Telescope
Sara Issaoun, Maciek Wielgus, Svetlana Jorstad +27
The blazar J1924-2914 is a primary Event Horizon Telescope (EHT) calibrator for the Galactic Center's black hole Sagittarius A*. Here we present the first total and linearly polari…
Millimeter light curves of Sagittarius A* observed during the 2017 Event Horizon Telescope campaign
Maciek Wielgus, Nicola Marchili, Ivan Marti-Vidal +28
The Event Horizon Telescope (EHT) observed the compact radio source, Sagittarius A* (Sgr A*), in the Galactic Center on 2017 April 5-11 in the 1.3 millimeter wavelength band. At th…
Unravelling the Innermost Jet Structure of OJ 287 with the First GMVA+ALMA Observations
Guang-Yao Zhao, Jose L. Gomez, Antonio Fuentes +33
We present the first very-long-baseline interferometric (VLBI) observations of the blazar OJ287 carried out jointly with the Global Millimeter VLBI Array (GMVA) and the phased Atac…
Investigating the Disk-Jet Structure in M87 through Flux Separation in the Linear and Circular Polarization Images
Yuh Tsunetoe, Shin Mineshige, Tomohisa Kawashima +3
For testing different electron temperature () prescriptions in general relativistic magnetohydrodynamics (GRMHD) simulations through observations, we propose to utilize…