[ad_1]
Immediately, a number of stocks have risen: in particular, three types of object candidates that are threading the needle of being relatively common in the cosmos to obtain Oh-My-God particles.
Ikaro Stars
In 2008, Farrar and an author proposed that cataclysms called tidal events (TDEs) can be a source of very high-energy cosmic rays.
A TDE occurs when a star pulls a Fear and gets too close to a supermassive black hole. The star’s front feels much more severe than its back, as the star shrinks and turns into an abyss. The vortex lasts about a year. As it lasts, two jets of material — subatomic fragments of a broken star — are thrown in opposite directions through a black hole. Shock waves and magnetic fields from these rays could be conspired before the nuclei could be accelerated to space at very high energies.
Tidal wave events occur approximately every 100,000 years in all galaxies, which is the cosmological equivalent of what happens all the time. As galaxies trace the distribution of matter, TDEs can explain the success of the Ding, Globus, and Farrar continuous model.
Also, TDE’s relatively short flash solves other puzzles. By the time the cosmic ray of TDE reaches us, TDE will be dark for thousands of years. Other cosmic rays of the same TDE may take different bending paths; some may not last for centuries. The transient nature of a TDE may explain that there appear to be so few patterns in the destination directions of cosmic rays without much correlation with the positions of known objects. “I tend to believe that they are mostly transient, mostly,” Farrar said of the origin of the rays.
The TDE hypothesis has recently gained another boost from observation was reported in Astronomy of Nature in February.
Robert Stein, one of the authors of the paper, was using a telescope called the Zwicky Transient Factory in California when an alert came in October 2019 from the IceCube Neutrino Observatory in Antarctica. The IceCube detected a particularly energetic neutrino. High-energy neutrinos are formed when cosmic rays with higher energy are created when they scatter light or matter in the environment. Luckily, neutrinos, being neutral, go in straight lines towards us, so they point to the source of their parents ’cosmic ray.
Stein rotated the telescope toward the finish of the IceCube neutrino. “We immediately saw that there was an incident to interrupt the tide from the position when the neutrino arrived,” he said.
Correspondence is that TDEs are a source of very high energy cosmic rays. However, the energy of the neutrino was probably too low to prove that TDEs produce very high energy rays. Some researchers question whether these transients are able to accelerate to the end of the observed energy spectrum of the nucleus; theorists are still studying how events can accelerate particles.
Meanwhile, other events have turned the attention of some researchers elsewhere.
Starburst Superwinds
Cosmic ray observatories, such as the Auger and Telescope Array, have found some hot spots, small and subtle concentrations, in the directions of reaching very high-energy cosmic rays. In 2018, Auger published the results of comparing hot spots with the locations of astrophysical objects are hundreds of millions of light years away. (Farther cosmic rays would lose too much energy in the middle collision of the journey).
In the cross-correlation competition, the type of object did not perform very well, as it is understandable given the experience of the deflection of cosmic rays. But the strongest correlation surprised many experts: about 10% of the rays reached 13 degrees from the so-called “star explosion galaxies”. “They weren’t originally on my plate,” he said Michael Unger Karlsruhe Institute of Technology, member of the Auger group.
[ad_2]
Source link
