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- Institute of Astronomy and Astrophysics, Academia SinicaTW8 papers
- Center for Astrophysics Harvard & SmithsonianUS7 papers
- National Radio Astronomy ObservatoryUS6 papers
- East Asian ObservatoryUS5 papers
- Korea Astronomy and Space Science InstituteKR5 papers
- Massachusetts Institute of TechnologyUS5 papers
- National Astronomical Observatory of JapanJP5 papers
- National Sun Yat-sen UniversityTW5 papers
- Netherlands Institute for Radio AstronomyNL5 papers
- University of MalayaMY5 papers
- Aalto UniversityFI4 papers
- AstroTec Holding (Netherlands)NL4 papers
10 papers
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…
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…
A ring-like accretion structure in M87 connecting its black hole and jet
Ru-Sen Lu, Keiichi Asada, Thomas P. Krichbaum +118
The nearby radio galaxy M87 is a prime target for studying black hole accretion and jet formation^{1,2}. Event Horizon Telescope observations of M87 in 2017, at a wavelength of 1.3…
Solutions of the Multivariate Inverse Frobenius--Perron Problem
Colin Fox, Li-Jen Hsiao, Jeong Eun Lee
We address the inverse Frobenius--Perron problem: given a prescribed target distribution , find a deterministic map such that iterations of tend to in distribution.…
First M87 Event Horizon Telescope Results. II. Array and Instrumentation
The Event Horizon Telescope Collaboration
The Event Horizon Telescope (EHT) is a very long baseline interferometry (VLBI) array that comprises millimeter- and submillimeter-wavelength telescopes separated by distances comp…
First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole
The Event Horizon Telescope Collaboration
When surrounded by a transparent emission region, black holes are expected to reveal a dark shadow caused by gravitational light bending and photon capture at the event horizon. To…