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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole 5nvklj





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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole

Dragon
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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole Empty Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole

Post by Dragon Fri Apr 03, 2020 1:44 am

Astronomers have found the best evidence for the perpetrator of a cosmic homicide: a black hole of an elusive class known as "intermediate-mass," which betrayed its existence by tearing apart a wayward star that passed too close.

Weighing in at about 50,000 times the mass of our Sun, the black hole is smaller than the supermassive black holes (at millions or billions of solar masses) that lie at the cores of large galaxies, but larger than stellar-mass black holes formed by the collapse of a massive star.

These so-called intermediate-mass black holes (IMBHs) are a long-sought "missing link" in black hole evolution. Though there have been a few other IMBH candidates, researchers consider these new observations the strongest evidence yet for mid-sized black holes in the universe.

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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole 334pu7m
Dragon
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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole Empty Re: Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole

Post by Dragon Fri Apr 03, 2020 1:47 am

Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole Stsci-h-p2019b-f-1327x1327
Credits: NASA, ESA and D. Lin (University of New Hampshire)

The elusive type of black hole was first identified in a burst of telltale X-rays emitted by hot gas from a star as it was captured and destroyed by the black hole. Hubble was needed to pinpoint the black hole's location in visible light. Hubble's deep, high-resolution imaging shows that the black hole resides inside a dense cluster of stars that is far beyond our Milky Way galaxy. The star cluster is in the vicinity of the galaxy at the center of the image. Much smaller-looking background galaxies appear sprinkled around the image, including a face-on spiral just above the central foreground galaxy.

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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole 334pu7m
Dragon
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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole Empty Re: Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole

Post by Dragon Fri Apr 03, 2020 1:48 am


Credits: NASA's Goddard Space Flight Center

Astronomers have found the best evidence for a black hole of an elusive class known as “intermediate-mass,” which betrayed its existence by tearing apart a wayward star that passed too close.

This exciting discovery opens the door to the possibility of many more lurking undetected in the dark, waiting to be given away by a star passing too close.



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Hubble Finds Best Evidence for Elusive Mid-Sized Black Hole 334pu7m

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