Last April, the international coalition of scientists who run the Event Horizon Telescope (EHT), a network of eight telescopes from around the world, revealed the first-ever image of a black hole.
Now, a team of researchers at the Center for Astrophysics at Harvard have revealed calculations, as detailed in a paper published in the journal Science Advances today, that predict an intricate internal structure within black hole images caused by extreme gravitational light bending.
Other things to check out:
Black hole shock: Supermassive black hole at Milky Way's heart is getting active | Science | News
A team from France and Belgium have discovered that X-ray flares emanating from the black hole, which is located 26,000 light-years away from Earth, have increased by a factor of three between August 2014 and 2017. The team wrote in their paper published in the online journal arXiv: "Since 2014, the activity of Sgr A* thus increased in several wavelengths.
"Additional multiwavelength data are required to conclude on the persistence of this increase and to obtain clues on the source of this unprecedented activity of the supermassive black hole.”
Astronomers Spot Ancient Black Hole Beaming Radiation Toward Earth - ExtremeTech
The universe is crawling with black holes — we’ve even taken a picture of one . Despite that, these extreme stellar objects never stop surprising astronomers. A team from the University of Insubria in Italy spotted a supermassive black hole beaming a jet of energetic particles in our direction. That in and of itself isn’t terribly rare, but the age of this black hole is.
The University of Insubria used data from the Large Binocular Telescope (LBT) to discover the black hole, which is known as PSO J030947.49+271757.31. Like other supermassive black holes, this one is at the center of a distant galaxy. There are a few labels that can apply to objects like this. It’s an “active galactic nuclei” because the center is very bright across large swaths of the electromagnetic spectrum.
U.S. Economy Slides Into the Monetary Black Hole - WSJ
The Federal Reserve is now officially spent. Saving the U.S. economy from this point forward is now up to someone else.
On Sunday, the Fed used the last of its conventional monetary ammunition to counter the economic crisis triggered by the new coronavirus. It cut its short-term interest-rate target a full percentage point to between 0% and 0.25%.
Quite a lot has been going on:
Journalism group calls state police 'black hole' | Connecticut & Region | journalinquirer.com
A national journalism society has given the Connecticut State Police its satiric Black Hole Award "for outright contempt of the public's right to know."
The Society of Professional Journalists accused the state police of "routine violations of Connecticut's Freedom of Information Act."
The society said in a statement that "a hearing officer researched and found state police had violated the state's FOIA 29 times since 2010 and were the subject of 60 complaints.
Black hole mega-burp was truly explosive | Science News for Students
This was the most powerful black-hole eruption known. Only the collision of galaxy clusters and the creation of the universe — the Big Bang itself — have been more powerful.
* * *
Eruptions from enormous black holes happen a lot. You might think of them as super-powerful burps.
Disks of hot gas surround black holes. And it's this gas — not the black hole itself — that burps out all of that energy. Why? Sometimes energy gets pent up in the gas. An eruption releases that stored energy. This newly identified event isn't exactly like normal ones, though. It was thousands of times more powerful than most.
Quasar Tsunamis Rip Across Galaxies
The weather forecast for galaxies hosting monster, active black holes is blustery. Engorged by infalling material, a supermassive black hole heats so much gas that it can shine 1,000 times brighter than its host galaxy. But that's not all.
Hubble astronomers found that the region around the black hole emits so much radiation that it pushes out material at a few percent the speed of light (a speed fast enough to travel from Earth to the Moon in a few minutes). This material slams into a host galaxy's lanes of gas and dust, preventing the formation of new stars. The torrential winds are snowplowing the equivalent of hundreds of solar masses of material each year.
Supermassive black hole at the heart of the Milky Way is beating faster than ever before |
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