Currently, cosmic rays are studied across a wide range of energies, from 10⁹ eV to 10²⁰ eV, with scientists looking at everything from the cosmic rays' compositions to their favored directions in the sky. Tjus thinks that with a combination of 3D modeling and precision measurements of...
Gamma-ray astronomy has shown that most of the particles come from the Galaxy, but even this discovery was 63 years in coming (Dodds etal. 1975). Supernova remnants (SNR) have long been suspected to be the source of cosmic rays below about 100 PeV, the production mechanism being Fermi ...
And later data turned up a surprising source for cosmic rays: Sagittarius A*, otherwise known as the supermassive black hole residing at the center of our galaxy. Data from the High Energy Stereoscopic System from 2004 to 2013 along with analysis from the University of the Witwatersrand showed ...
source have been recently obtained with good precision.The bulk of the observations suggests that cosmic rays originate in unevolved star surface material. Mostcosmic rays should be stellar energetic particles first accelerated by flares out of the Coronae of F to Mstars, that got later on re...
Cosmic ray composition and energy spectra at source have been recently obtained with good precision. The bulk of the observations suggests that cosmic rays originate in unevolved star surface material. Most cosmic rays should be stellar energetic particles first accelerated by flares out of the Corona...
The dose of cosmic radiation is maximal near the North pole or South pole, so airline crews experience more cosmic rays if they routinely work close to these areas (Source). Prior to the discovery of cosmic rays, physicists believed that they were actually gamma rays being produced as a resu...
Scientists have discovered an unidentified source of high-energy cosmic rays bombarding Earth from space. They say it must be close to the solar system and it could be made of dark matter. “This is a big discovery,” says John Wefel of Louisiana State University and Principal Investigator fo...
Cosmic ray composition and energy spectra at source have been recently obtained with good precision. The bulk of the observations suggests that cosmic rays originate in unevolved star surface material. Most cosmic rays should be stellar energetic particles first accelerated by flares out of the ...
Cosmic rays come from supernova explosions, among other processes in the universe. This is a Combined infrared and x-ray images of a supernova remnant called W44. Several telescopes looked at it to get the image. When the star that created this scene exploded, it sent out cosmic rays and...
Seeking a source of potent cosmic rays.Describes efforts by researchers to study ultra-high-energy cosmic rays (UHECRs) which occasionally blast the Earth's outer atmosphere. Mystery and rarity of UHECRs; Questions about the composition and source of UHECRs; Proposal of satellites to sense UH...