activity
20092026
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 · 17.2k across the 144 of their papers we have counts for

collaborators
Showing 2011Show all

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astro-ph.CO2011★ 188 cited

The 2010 very high energy gamma-ray flare & 10 years of multi-wavelength observations of M 87

The H. E. S. S. Collaboration, :, A. Abramowski +442

Abridged: The giant radio galaxy M 87 with its proximity, famous jet, and very massive black hole provides a unique opportunity to investigate the origin of very high energy (VHE;…

astro-ph.CO2011★ 1 cited

Nuclear Radio Continuum Emission of Low-Luminosity Active Galactic Nucleus NGC 4258

Akihiro Doi, Kotaro Kohno, Kouichiro Nakanishi +4

The nearby low-luminosity active galactic nucleus (LLAGN) NGC 4258 has a weak radio continuum emission at the galactic center. Quasi-simultaneous multi-frequency observations using…