Scientists have found that a small black hole with ordinary stars can accelerate the particles to extraordinary energy, which challenges our understanding of the acceleration of cosmic particles. This discovery from a study from the Institute of Max Planck Nuclear Physics in Germany, astronomers detected high-energy gamma rays from an unexpected source-a relatively small star system called micro-QUASAR.
The discovery is centered on the two -person group called GRS 1915+105, and the black hole there slowly consume a little partner star than our sun. With the occurrence of this universe feast, it sprays powerful materials to accelerate granular to space with extreme speed.
“So far, it has not been observed in a rare high-quality micro-sentence system until now,” Dr. Laura Olivera-Nieto of the Max Planck Nuclear Institute of Physics and Dr. Guillemmartí-Devesa of the University of Trieste pointed out that they led this item Research. Published in a letter of celestial physics journal.
This discovery is particularly important because it reveals that even the relatively small cosmic systems will help bombard the high -energy granular flow of the earth from space. These particles are called cosmic rays and are one of the fastest -known objects known in the universe, but their origin has been plagued scientists for a long time.
The team used NASA’s Fermi Satellite to analyze the data for 16 years to detect the weak but lasting gamma ray signal in the system. The energy level (more than 10 billion electronic volt) observed indicates that these cosmic systems can accelerate the energy of particles, even higher energy than previously imagined.
The study challenged the hypothesis that the cosmic system could be used as a particle accelerator. So far, scientists believe that only by microvasars (such as SS 433) with a large number of companions, and its content is ten times heavier than our sun can it produce such high -energy emissions.
Supporting evidence from the observation results of the Nobeyama 45 -meter radio telescope using Japan. The telescope reveals that there are sufficient gas materials around the source to explain how these accelerated particles have produced gamma rays observed by collision.
This discovery shows that a similar small black hole system that is more common than its large small black hole system in our galaxy may make a significant contribution to the cosmic rays where the universe reaches the earth. These meanings are beyond our understanding of these specific systems, questioning how galaxies develop and the behavior of material under extreme conditions.
These discoveries have opened new ways to study the acceleration of the acceleration of the universe particles, especially in a system that thought it was too small but could not become an important contributor. As the telescope becomes more and more sensitive, astronomers hope to find more examples of these micro but powerful universe accelerators.
Although this single discovery cannot solve the long -term mystery of the origin of cosmic rays, it shows that the particle acceleration mechanism of the universe is diverse than previously understood, which adds key works to the problem.
Researchers explained in the papers: “These findings show that even microvasar with low -quality stars can accelerate particles.” This work may cause scientists to view the fundamental contribution of these systems to our galaxy’s cosmic rays content. change.
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