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Spitzer Space Telescope puts M87’s black hole in context

8 May 2019, 15:49 UTC
Spitzer Space Telescope puts M87’s black hole in context
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A composite image of galaxy M87, showing an infrared view from the Spitzer Space Telescope at left, a magnified look at the galaxy’s central regions, top right, and the Event Horizon Telescope’s enormously zoomed-in radio image of the galaxy’s central black hole, lower right. Image: NASA/JPL-Caltech/IPAC/Event Horizon Telescope Collaboration
The Event Horizon Telescope’s first ever image of a supermassive black hole’s event horizon, or more properly, the shadow of the black hole on high-energy material behind it, generated headlines around the world when it was unveiled on 10 April. To put that iconic image in contact, NASA has released an infrared view of the black hole’s host galaxy – M87 – as seen by the Spitzer Space Telescope.
M87, located some 55 million light years from Earth, has long fascinated astronomers, who early on noticed a long jet-like structure extending away from the galaxy’s nucleus. It’s now known that M87 features two such jets, one aimed almost in Earth’s direction, that are generated by a disc of material rapidly rotating around a 5.6-billion-solar mass black hole at the heart of the galaxy.
Where the jets interact with atoms and molecules in the interstellar medium, shockwaves are generated that radiate in ...

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