‘Ghost particles’ in deep space likely originate from galactic cores fueled by supermassive black holes, according to new research that could solve the mystery of these pre-universal subatomic particles.
Ghost particles, or neutrinos, have puzzled scientists ever since they were first discovered in 1956 because they have no mass and barely interact with matter.
These tiny electrically charged particles rush through the universe with little or no influence from natural objects or forces, but they are the second most abundant particles on Earth after photons.
Galactic cores, known as blazars, are galaxies with supermassive black holes at their centers, and their jets point directly at Earth.
A team of researchers led by the University of Würzburg identified the source of ghost particles by comparing particle trajectory data and the position of the University of Würzburg in the universe.
They found that 10 of the 19 neutrino hotspots were blazars.
The task of unraveling the mysteries of ghost particles is vital, because it will allow us to better understand how matter evolved from simple particles to the complex particles that created everything around us.
At the center of most galaxies, including ours, is a supermassive black hole that creates a disk of gas, dust, and stellar debris around it.
When disk material falls into a black hole, its gravitational energy can be converted into light, which makes the centers of these galaxies so bright and leads to them being called active galactic nuclei (AGNs).
When a galaxy falls so that its jets are directed towards the Earth, this is called a Blazar, and this is the current theory of what produces ghost particles.
This is the conclusion reached by researchers who in 2008 and 2015 collected data from the IceCube neutrino observatory in Antarctica, the most sensitive neutrino detector on Earth.
It was then compared to BZCat, a catalog of over 3,500 items that appear to be blazers.
The results showed that 10 of the 19 IceCube hotspots found in the southern sky were likely due to blazars.
“The discovery of high-energy neutrino factories is an important milestone in astrophysics. It allows us to take a step forward in unraveling the age-old mystery of the origin of cosmic rays,” says Dr. Andrea Tramasseri, researcher at the Department of Astronomy at the Institute of Astronomy. This is stated in the message of the University of Geneva.
The high-energy neutrino was first detected on September 22, 2017 by the IceCube Observatory, a massive object that sank a mile below the South Pole.
A network of more than 5,000 ultra-sensitive sensors recorded the characteristic blue “Cherenkov” light emitted by the interaction of neutrinos with ice.
Neutrinos are believed to be produced by high-energy cosmic rays from jets interacting with nearby matter.
Source: Daily Mail