A galaxy transitioned from being dim and quiet to bright and active, giving astronomers insight into active galactic nuclei.
Over the past four years, astronomers have been able to watch the supermassive black hole in SDSS1335+0728’s center go fromThe finding will provide insights into the processes powering active galactic nuclei, or AGN, which occur when supermassive black holes consume enormous amounts of material, becomingLocated 300 million light-years from Earth, SDSS1335+0728 first caught scientists’ attention in December 2019, when the Zwicky Transient Facility at Palomar Observatory in California noticed it...
The team was gearing up to publish their findings when, in February, the space-based Neil Gehrels Swift Observatory watched SDSS1335+0728 begin glowing in X-rays. Other facilities caught it turning on in a variety of other wavelengths.
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