activity
20032026
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 15.2k across the 109 of their papers we have counts for

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Showing 2021Show all

14 papers · 1 filter

astro-ph.HE2021★ 27 cited

The intrinsic structure of Sagittarius A* at 1.3 cm and 7 mm

Ilje Cho, Guang-Yao Zhao, Tomohisa Kawashima +63

Sagittarius A* (Sgr A*), the Galactic Center supermassive black hole (SMBH), is one of the best targets to resolve the innermost region of SMBH with very long baseline interferomet…

astro-ph.GA2021★ 139 cited

Event Horizon Telescope observations of the jet launching and collimation in Centaurus A

Michael Janssen, Heino Falcke, Matthias Kadler +236

Very-long-baseline interferometry (VLBI) observations of active galactic nuclei at millimeter wavelengths have the power to reveal the launching and initial collimation region of e…

astro-ph.HE2021★ 18 cited

The Variability of the Black-Hole Image in M87 at the Dynamical Time Scale

Kaushik Satapathy, Dimitrios Psaltis, Feryal Ozel +235

The black-hole images obtained with the Event Horizon Telescope (EHT) are expected to be variable at the dynamical timescale near their horizons. For the black hole at the center o…

astro-ph.HE2021★ 22 cited

RadioAstron discovery of a mini-cocoon around the restarted parsec-scale jet in 3C 84

T. Savolainen, G. Giovannini, Y. Y. Kovalev +19

We present RadioAstron space-based very long baseline interferometry (VLBI) observations of the nearby radio galaxy 3C84 (NGC1275) at the centre of the Perseus cluster. The observa…

astro-ph.GA2021★ 18 cited

A persistent double nuclear structure in 3C 84

Junghwan Oh, Jeffrey A. Hodgson, Sascha Trippe +11

3C 84 (NGC 1275) is the radio source at the center of the Perseus Cluster and exhibits a bright radio jet. We observed the source with the Global Millimeter VLBI Array (GMVA) betwe…

astro-ph.GA2021★ 7 cited

Modeling the unresolved NIR-MIR SEDs of local () QSOs

M. Martínez-Paredes, O. González-Martín, K. HyeongHan +8

To study the nuclear (kpc) dust of nearby () type 1 Quasi Stellar Objects (QSOs) we obtained new near-infrared (NIR) high angular resolution ( arcsec)…