[ad_1]
The researchers found that light does not bend so much around the strong gravitational field of a black hole. The new study was conducted using a new technology called X-ray polarimetry. ( NASA, ESA, Martin Kornmesser )
Researchers have discovered how strong the gravitational field comes from a hole black influences the shape of the material that surrounds it.
An International Team of Researchers from Japan Sweden discovered that light that bounces on the accreting disk around a black hole is scattered by an extended crown, a mysterious source of highly charged particles surrounding a black hole.
The team says their findings give a new insight into gravity. and pave the way for a better understanding of the evolution of black holes.
First black hole discovered
In a new article published in the journal Nature Astronomy the team examined the binary black hole. Cygnus X-1 system, a pair consisting of a black hole and a star in the constellation of the Swan at 6,070 light years from Earth
Cygnus X-1, which includes the first hole black to be discovered by the man, is one of the brightest sources of X-rays in the sky. However, scientists have long been intrigued by the nature of the material that creates this X-ray emission.
Black holes are regions in the space defined by an extremely strong gravitational field. The attraction of black holes is so strong that even light can escape once it falls beyond the horizon of events
and that's why it is virtually impossible to study black holes using visible light telescopes. Instead, the experts study light from the material surrounding the black hole. In the case of Cygnus X-1, researchers examined light from the star moving in orbit around the black hole
X-rays of black holes penetrate polarized filters
Light travels in several directions. To force light to travel in one direction, scientists use polarization filters that cut light from other sources.
This is the same method used for polarized ski goggles. Polarization filters on the lens cut off the light that bounces off the snow to minimize glare. It also works the same way when it comes to hard x-rays from black holes.
"However, hard x-rays and gamma rays coming from the black hole penetrate this filter," says Hiromitsu Takahashi, co-author and assistant professor at Hiroshima University. "There is no such" glasses ", so we need another type of treatment to direct and measure this dispersion of light."
The Shape of the Matter Around the Black Hole
Researchers have been able to distinguish the shape of the material that generates the abundant amounts of X-rays in Cygnus X-1.
Researchers launched an X-ray polarimeter on the PoGO + stratospheric balloon to help identify the light source from the binary system.
This allowed them to determine the hard x-rays that bounced off the black hole accretion disk and identified the shape of the material surrounding the black hole.
There are two dominant patterns for the shape of the material around a black hole. The first is the floor lamp model, where the black hole has a dense crown closely related to it. In this scenario, the light particles are bent toward the disk, creating more bouncing light.
The second model is the extended model, where the crown is scattered around the black hole. This means that the light that bounces on the accretion disk is much weaker than in the streetlight model.
The researchers found that the light did not bend so close to the black hole, suggesting that the model extended applies. ] View now: 30 gadgets and technical gifts for Father's Day 2018 that Dad will think will be rad
© 2018 Tech Times, All Rights Reserved. Do not reproduce without permission.
[ad_2]
Source link
