activity
20072026
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 · 3.5k across the 27 of their papers we have counts for

collaborators

27 papers

astro-ph.IM2026

First Very Long Baseline Interferometry Fringe Detection at 690GHz

Ming-Tang Chen, Geoffrey B. Crew, Dan Bintley +42

We report the first very long baseline interferometry (VLBI) experiment conducted in the 690 GHz atmospheric window. On 2024 November 21, observations with the Atacama Large Millim…

astro-ph.IM2025

First frequency phase transfer from the 3 mm to the 1 mm band on an Earth-sized baseline

Sara Issaoun, Dominic W. Pesce, María J. Rioja +33

Frequency Phase Transfer (FPT) is a technique designed to increase coherence and sensitivity in radio interferometry by making use of the non-dispersive nature of the troposphere t…

astro-ph.IM2024★ 30 cited

First Very Long Baseline Interferometry Detections at 870μm

Alexander W. Raymond, Sheperd S. Doeleman, Keiichi Asada +276

The first very long baseline interferometry (VLBI) detections at 870m wavelength (345GHz frequency) are reported, achieving the highest diffraction-limited angular resolutio…

astro-ph.IM2023

Absolute Flux Density Calibration of the Greenland Telescope Data for Event Horizon Telescope Observations

J. Y. Koay, K. Asada, S. Matsushita +35

Starting from the observing campaign in April 2018, the Greenland Telescope (GLT) has been added as a new station of the Event Horizon Telescope (EHT) array. Visibilities on baseli…

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.IM2023★ 1 cited

The Greenland Telescope: Construction, Commissioning, and Operations in Pituffik

Ming-Tang Chen, Keiichi Asada, Satoki Matsushita +51

In 2018, the Greenland Telescope (GLT) started scientific observation in Greenland. Since then, we have completed several significant improvements and added new capabilities to the…