Michael D. Johnson - Researcher Profile

Publications

2 shown

First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole

Kazunori Akiyama , A. Alberdi , W. Alef +97 more

Abstract 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...

2019 The Astrophysical Journal Letters 3828 citations

First M87 Event Horizon Telescope Results. VI. The Shadow and Mass of the Central Black Hole

Kazunori Akiyama , A. Alberdi , W. Alef +97 more

Abstract We present measurements of the properties of the central radio source in M87 using Event Horizon Telescope data obtained during the 2017 campaign. We develop and fit ge...

2019 The Astrophysical Journal Letters 1503 citations

Frequent Co-Authors

Researcher Info

h-index: 2
Publications: 2
Citations: 5,331
Institution: Center for Astrophysics Harvard & Smithsonian

External Links

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Identifiers

ORCID: 0000-0002-4120-3029

Impact Metrics

h-index 2

h-index: Number of publications with at least h citations each.