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Ue Li Pen

Researcher at Harvard University

Publications -  45
Citations -  1512

Ue Li Pen is an academic researcher from Harvard University. The author has contributed to research in topics: Computer science & Supermassive black hole. The author has an hindex of 3, co-authored 4 publications receiving 93 citations. Previous affiliations of Ue Li Pen include Princeton University.

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Journal ArticleDOI

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

Kazunori Akiyama, +387 more
- 01 May 2022 - 
TL;DR: The first Event Horizon Telescope (EHT) observations of Sagittarius A* (Sgr A*), the Galactic center source associated with a supermassive black hole, were conducted in 2017 using a global interferometric array of eight telescopes operating at a wavelength of 1.3 mm as mentioned in this paper .
Journal ArticleDOI

First Sagittarius A* Event Horizon Telescope Results. VI. Testing the Black Hole Metric

Event Horizon Telescope Collaboration, +270 more
- 01 May 2022 - 
TL;DR: In this article , the authors calibrate the relationship between the geometrically defined black hole shadow and the observed size of the ring-like images using a library that includes both Kerr and non-Kerr simulations.
Journal ArticleDOI

First Sagittarius A* Event Horizon Telescope Results. III. Imaging of the Galactic Center Supermassive Black Hole

Event Horizon Telescope Collaboration, +270 more
- 01 May 2022 - 
TL;DR: In this article , the authors presented the first event-horizon-scale images and spatiotemporal analysis of Sgr A* taken with the Event Horizon Telescope in 2017 April at a wavelength of 1.3 mm.
Journal ArticleDOI

First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multiwavelength Observations, Data Processing, and Calibration

Event Horizon Telescope Collaboration, +336 more
- 01 May 2022 - 
TL;DR: In this paper , the authors present Event Horizon Telescope (EHT) 1.3 mm measurements of the radio source located at the position of the supermassive black hole Sagittarius A* (Sgr A*), collected during the 2017 April 5-11 campaign.

First Sagittarius A* Event Horizon Telescope Results. V. Testing Astrophysical Models of the Galactic Center Black Hole

Event Horizon Telescope Collaboration, +274 more
TL;DR: In this paper , the authors compare resolved EHT data at 230 GHz and unresolved non-EHT observations from radio to X-ray wavelengths to predictions from a library of models based on time-dependent general relativistic magnetohydrodynamics simulations, including aligned, tilted, and stellar-wind-fed simulations.