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Black hole at the center of our galaxy appears to be getting hungrier 5nvklj





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Black hole at the center of our galaxy appears to be getting hungrier

Dragon
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Post by Dragon on Thu Jan 16, 2020 1:34 pm

The enormous black hole at the center of our galaxy is having an unusually large meal of interstellar gas and dust, and researchers don't yet understand why.

"We have never seen anything like this in the 24 years we have studied the supermassive black hole," said Andrea Ghez, UCLA professor of physics and astronomy and a co-senior author of the research. "It's usually a pretty quiet, wimpy black hole on a diet. We don't know what is driving this big feast."

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Black hole at the center of our galaxy appears to be getting hungrier 334pu7m
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Post by Dragon on Thu Jan 16, 2020 1:38 pm

Black hole at the center of our galaxy appears to be getting hungrier Blackholeatt
Credit: Artist's rendering by Nicolle Fuller/National Science Foundation

Rendering of a star called S0-2 orbiting the supermassive black hole at the center of the Milky Way. It did not fall in, but its close approach could be one reason for the black hole's growing appetite.

Source / Image Courtesy


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Black hole at the center of our galaxy appears to be getting hungrier 334pu7m
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Post by Dragon on Thu Jan 16, 2020 1:43 pm



The brightness the scientists observed is caused by radiation from gas and dust falling into the black hole; the findings prompted them to ask whether this was an extraordinary singular event or a precursor to significantly increased activity.


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Black hole at the center of our galaxy appears to be getting hungrier 334pu7m
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Black hole at the center of our galaxy appears to be getting hungrier Empty Re: Black hole at the center of our galaxy appears to be getting hungrier

Post by Dragon on Thu Jan 16, 2020 1:45 pm



Astrophysical Journal Letters also published a second article by the researchers, describing speckle holography, the technique that enabled them to extract and use very faint information from 24 years of data they recorded from near the black hole.



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