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A colorful image of a black hole

17 Apr 2021, 13:32 UTC
A colorful image of a black hole
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Title: Broadband Multi-wavelength Properties of M87 during the 2017 Event Horizon Telescope CampaignAuthors: The Event Horizon Telescope Multi-wavelength Science Working Group – The Event Horizon Telescope Collaboration, the Fermi Large Area Telescope Collaboration, H.E.S.S. Collaboration, MAGIC Collaboration, VERITAS Collaboration, EAVN CollaborationStatus: Accepted to the Astrophysical Journal Letters [open access]M87 is a galaxy of extremes – it is one of the brightest radio sources in the entire sky, one of the nearest galaxies that has a relativistic jet emitted from its nucleus, and one of our nearest extragalactic neighbors (a measly 53 million light-years away, in the Virgo Cluster). Also, in 2019, M87 made the news for hosting the subject of the first ever image of a black hole “shadow” (check out the Astrobites coverage of that historic event here).This first direct image of a black hole at the heart of M87 was taken by the Event Horizon Telescope – a global interferometric network of radio dishes that granted the unprecedented resolution necessary to image the subtle structures surrounding the black hole. While this image provided us with invaluable information about black holes, there is still a significant amount of uncertainty on some of the characteristics of the pictured black hole, ...

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