This discovery was made by XRISM's Resolve instrument -- and indicates that such blasts can form in under a few hours, and dissipate, just as rapidly.
[Of course, since the vast x-ray emissions from it are just reaching us today, this cataclysmic event occurred about 130 million years ago -- not more than eye-blink though, on the cosmic time-scales.] Here's the latest from ESA -- on all that:
. . .Leading X-ray space telescopes XMM-Newton and XRISM have spotted an extraordinary blast from a supermassive black hole. In a matter of hours, the gravitational monster whipped up powerful winds, flinging material out into space at eye-watering speeds of 60,000 km per second.
The gigantic black hole lurks within NGC 3783, a beautiful spiral galaxy imaged recently by the NASA/ESA Hubble Space Telescope. Astronomers spotted a bright X-ray flare erupt from the black hole before swiftly fading away. As it faded, fast winds emerged, raging at one-fifth of the speed of light. . . .
“We’ve not watched a black hole create winds this speedily before,” says lead researcher Liyi Gu at Space Research Organisation Netherlands (SRON). “For the first time, we’ve seen how a rapid burst of X-ray light from a black hole immediately triggers ultra-fast winds, with these winds forming in just a single day. . . .”
Now you know. . . what an infinitesimal, fragile, and ethereal beauty our sparkling blue life-raft is. . . in all of this, right? Amazing!
Do take good care of one another, as it may turn out that this and now, is all we will ever be, or have. I seriously doubt we are unique in all the Universe, but a single blast like this would wipe out potentially hundreds of millions of civilizations (were they out there -- anywhere near NGC 3783, some 130 million years ago). We are so very. . . lucky, indeed.
नमस्ते







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