activity
20002026
most citedPrecessing jet nozzle connecting to a spinning black hole in M87

109 citations · 1k across the 43 of their papers we have counts for

collaborators

44 papers

astro-ph.GA2026

Measurements of magnetic fields in circumnuclear matter with the SKA telescopes

Satoko Sawada-Satoh, Yuki Kudoh

Magnetic fields are thought to regulate the angular momentum transfer in active galactic nuclei (AGNs), yet their strength and structure in circumnuclear regions remain poorly cons…

astro-ph.GA2026

Probing the Parsec-Scale Dynamical Structure of Ionized Gas in Radio-Quiet AGN with SKA

Yuki Kudoh, Satoko Sawada-Satoh

We systematically organize the radio-emitting components in radio-quiet active galactic nuclei (RQ AGN), including jets, accretion disk coronae, dust, ionized gas outflows, and cir…

astro-ph.GA2026

Jet-torus interaction revealed by sub-parsec SO absorption in NGC 1052

Satoko Sawada-Satoh, Seiji Kameno, Nozomu Kawakatsu +10

We report the first λ2-mm very long baseline interferometry (VLBI) observations of the radio galaxy NGC 1052, conducted with the Korean VLBI Network (KVN) using a wide-band recordi…

astro-ph.IM2024★ 5 cited

The Japanese Vision for the Black Hole Explorer Mission

Kazunori Akiyama, Kotaro Niinuma, Kazuhiro Hada +43

The Black Hole Explorer (BHEX) is a next-generation space very long baseline interferometry (VLBI) mission concept that will extend the ground-based millimeter/submillimeter arrays…

astro-ph.HE2023★ 109 cited

Precessing jet nozzle connecting to a spinning black hole in M87

Yuzhu Cui, Kazuhiro Hada, Tomohisa Kawashima +76

The nearby radio galaxy M87 offers a unique opportunity to explore the connections between the central supermassive black hole and relativistic jets. Previous studies of the inner…

astro-ph.GA2023★ 2 cited

Very Long Baseline Interferometry imaging of H2O maser emission in the nearby radio galaxy NGC 4261

Satoko Sawada-Satoh, Nozomu Kawakatu, Kotaro Niinuma +1

We report dual-frequency very long baseline interferometry (VLBI) observations at 22 and 43 GHz toward the nucleus of a nearby radio galaxy NGC 4261. In particular, we present a VL…