Black Hole silhouetted against the Milky Way Spring 2019 ASTR 2030 Homepage

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M87, the galaxy at the center of the Local Supercluster

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The M87 black hole imaged by the Event Horizon Telescope

The size of the image, measured from its angular size and the distance to M87, implies that the mass of the black hole at the center of M87 is 6.5 ± 0.7 × 109 solar masses (The EHT Collaboration 2019 “First M87 Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole”).
M87 black hole imaged by the Event Horizon Telescope

Silhouettes of Kerr black holes with various spin parameters \(a\)

Silhouette of a black hole

The mass of M87 measured from stellar motions

The mass of the black hole at the center of M87 has been measured from stellar motions to be 6.6 ± 0.4 × 109 solar masses (Gebhardt & al. 2011 “The Black-Hole Mass in M87 from Gemini/NIFS Adaptive Optics Observations”).

Spectrum of gas disk in M87 Rotation curve of gas disk in M87

M87 at various wavelengths

X-ray
Chandra image of M87 in x-rays

Visible
M87 in visible light Hubble image of M87 with jet

Radio
Montage of radio images of M87 and its jet
Wide angle radio view of M87 and its ject Montage of radio images of M87 and its jet

 Black Hole silhouetted against the Milky Way Spring 2019 ASTR 2030 Homepage

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Updated 2020 Mar 13