activity
20002023
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 · 2.4k across the 12 of their papers we have counts for

collaborators

12 papers

astro-ph.HE2023★ 1.9k cited

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

The Event Horizon Telescope Collaboration

We present the first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A), the Galactic center source associated with a supermassive black hole. These observati…

astro-ph.GA2018★ 86 cited

Detection of intrinsic source structure at ~3 Schwarzschild radii with Millimeter-VLBI observations of SAGITTARIUS A*

Ru-Sen Lu, Thomas P. Krichbaum, Alan L. Roy +53

We report results from very long baseline interferometric (VLBI) observations of the supermassive black hole in the Galactic center, Sgr A*, at 1.3 mm (230 GHz). The observations w…

astro-ph.GA2016★ 88 cited

Persistent Asymmetric Structure of Sagittarius A* on Event Horizon Scales

Vincent L. Fish, Michael D. Johnson, Sheperd S. Doeleman +69

The Galactic Center black hole Sagittarius A* (Sgr A*) is a prime observing target for the Event Horizon Telescope (EHT), which can resolve the 1.3 mm emission from this source on…

astro-ph.IM2015★ 21 cited

First 230 GHz VLBI Fringes on 3C 279 using the APEX Telescope

J. Wagner, A. L. Roy, T. P. Krichbaum +52

We report about a 230 GHz very long baseline interferometry (VLBI) fringe finder observation of blazar 3C 279 with the APEX telescope in Chile, the phased submillimeter array (SMA)…

astro-ph.HE2015★ 19 cited

No asymmetric outflows from Sagittarius A* during the pericenter passage of the gas cloud G2

J. -H. Park, S. Trippe, T. P. Krichbaum +5

The gas cloud G2 falling toward Sagittarius A* (Sgr A*), the supermassive black hole at the center of the Milky Way, is supposed to provide valuable information on the physics of a…

astro-ph.HE2013★ 1 cited

Zooming towards the Event Horizon - mm-VLBI today and tomorrow

T. P. Krichbaum, A. Roy, J. Wagner +21

Global VLBI imaging at millimeter and sub-millimeter wavelength overcomes the opacity barrier of synchrotron self-absorption in AGN and opens the direct view into sub-pc scale regi…