Magnetic field around black hole V404 CYGNI much weaker than estimated


Black holes devour notoriously any planetary body that dares to cross its roads. Their intense gravitational pull and ominous omnipotent spatial presence made them a staple of science fiction and the most fascinating phenomenon in the dark expanse of space.

His incredible appetite for rocks and stars in space is well known. It is said that the world in and around a black hole is a highly charged area that physically twists and deforms over time, which is too hectic, treacherous and risky for exploration.

They come in a range of sizes slightly larger than our sun to the size of our solar system. It is believed that these supermbadive black holes are at the heart of all mbadive galaxies and are likely to play a decisive role in the formation and evolution of galaxies.

There are also small black holes that are a little larger than our sun but are contained in a small area. They are formed in the death of mbadive stars or the fusion of neutron stars or a neutron star colliding with another stellar black hole. When they are fused, it is known that they even produce gravitational waves.

But it turns out that black holes might not be empty pumped space that seeks to consume everything.

A team of scientists from the University of Florida (UF) have been studying them and have published an article in the journal Science on Friday that says that these tears in the fabric of the universe have significantly weaker magnetic fields than they I thought.

When observing a black hole 40 miles wide that is at a distance of 8,000 light years from Earth called V404 Cygni, the team was able to make the discovery surprising. By measuring the magnetic field surrounding the deepest pits of gravity in the universe, the authors found that it was about 400 times smaller around the Cygni V404 than previously estimated.

Although previous estimates were of low quality and crude, scientists have been puzzled by the extent of overestimation. The dreaded magnetic field around a black hole that can drag it into a vacuum where time ceases to exist the way we experience it, a point of no return that even light can not escape is weaker than previously thought .

Trying to understand how matter behaves under the most extreme conditions, scientists studied the "jets" of particles that shoot out of the magnetic field of black holes at almost the speed of light, while all other particles are absorbed by its abysses.

is, how do you do that? Co-author Stephen Eikenberry, professor of astronomy at the UF College of Liberal Arts and Sciences, said in a press release on its website: "Our surprisingly low measurements will force new restrictions on theoretical models that previously focused on magnetic fields. strong that accelerate and direct the flows of the jets. We did not expect this, so it changes a lot from what we thought we knew. "

The team used measurements of the data collected in 2015 during the burst of black hole jets, the event was observed through the lens mirror Canarias 34-foot Telescope, the largest telescope in the world, co-owned by UF and located in the Canary Islands of Spain.

These outbursts occur suddenly and are short-lived, author Yigit Dalilar and co-author Alan said. Garner, doctoral students in the UF astronomy department The 2015 blasts of V404 Cygni lasted only a couple of weeks.The last time the same black hole had a similar episode was in 1989.

"Observing it was something what happens once or twice in the race, "said Dalilar." This discovery puts us one step closer to understanding how the universe works. "

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