Researchers detect galactic source of gamma rays that could produce very high-energy cosmic rays

Researchers detect galactic source of gamma rays that could produce very high-energy cosmic rays
Credit score: Asociacion RUVID

IFIC researcher Francisco Salesa Greus, together with different members of the HAWC collaboration, have detected very high-energy photons from a galactic supply that might produce cosmic rays. The detection of neutrinos by telescopes equivalent to KM3NeT or IceCube would verify the research. This discovering has been revealed in The Astrophysical Journal Letters.


HAWC is a positioned in Mexico that allows the gathering of data on probably the most violent phenomena that happen within the universe. Gamma rays are produced in very energetic astrophysical phenomena, equivalent to supernova explosions or nuclei of energetic galaxies and are made up of high-energy photons that once they come into contact with the Earth’s ambiance are absorbed, which makes their remark tough.

The evaluation, led by Salesa, a researcher on the Institute of Corpuscular Physics (UV-CSIC), exhibits the detection of high-energy photons from a galactic supply, HAWC J1825-134, whose spectrum continues uninterrupted as much as ranges of at the least 200TeV, which might suggest that this emission ought to have been created by much more highly effective , on the order of petaelectronvolt (PeV), which exhibits their doable origin. Actually, there are greater than 200 gamma ray sources that emit at energies of teraelectronvolts (TeV); however lower than a dozen sources that emit greater than 100TeV have been confirmed.

In accordance with this research, the noticed by HAWC could be the of the interplay of cosmic rays of upper with the of a zone of excessive density of matter, a molecular cloud.

The results of being earlier than some of the highly effective cosmic ray sources found to date may very well be confirmed with the detection of from HAWC J1825-134 utilizing neutrino telescopes equivalent to KM3NeT or IceCube. This supply stands out for being in a perfect place to be noticed by the long run KM3NeT.

“The outcomes of the HAWC J1825-134 observations make this supply a transparent candidate for emitting high-energy neutrinos,” says Francisco Salesa. With a telescope of the detection quantity of KM3NeT it’s anticipated to have the ability to observe this supply in the course of the interval of operation of the . “HAWC J1825-134 has the benefit of being positioned within the southern celestial hemisphere, which is the a part of the sky the place KM3NeT is most delicate,” provides Salesa.

KM3NeT and IceCube telescopes

KM3NeT positioned on the backside of the Mediterranean Sea and IceCube, positioned on the South Pole, are detectors for neutrinos, the smallest uncharged subatomic particles identified so far. Relating to this analysis, each telescopes will work to substantiate the outcomes obtained by HAWC, within the occasion that the anticipated emission of neutrinos is noticed as a product of the interplay of high-energy cosmic rays with matter and radiation on the supply of manufacturing.

The KM3NeT detector, during which the IFIC participates actively, is at the moment below building and already has a number of operational detection strains. KM3NeT is anticipated to be totally operational within the subsequent few years.

Francisco Salesa, distinguished researcher of the GenT program of the Division of Innovation, Universities, Science and Digital Society of the Valencian Authorities, focuses his work primarily on Multi-Messenger Astronomy, which goals to check the astrophysical phenomena noticed by totally different astroparticle detectors in spatial and/or temporal coincidence. Thus, even with little statistics it may be reliably affirmed that these occasions occurred in the identical cosmic supply and extract necessary details about the character of probably the most energetic accelerators within the universe.


Coronae of supermassive black holes may be the hidden sources of mysterious cosmic neutrinos seen on Earth


Extra data:
A. Albert et al. Proof of 200 TeV Photons from HAWC J1825-134, The Astrophysical Journal (2021). DOI: 10.3847/2041-8213/abd77b

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Researchers detect galactic supply of gamma rays that might produce very high-energy cosmic rays (2021, February 22)
retrieved 24 February 2021
from https://phys.org/information/2021-02-galactic-source-gamma-rays-high-energy.html

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