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supernova remnantsPhys Org
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86% Informative
High-Altitude Water Cherenkov Gamma-Ray Observatory finds microquasars in Milky Way .
Jets launched by astrophysical sources from our own intra-galactic "backyard" are also sources of gamma photons of extremely high energy.
These are energies up to a trillion times greater than the energy of visible light photons.
Microquasar V4641 Sagittarii is the source of photons with energies of up to 200 teraelectronvolts.
The main role here is played by a black hole with a mass of about six solar masses, pulling matter from the stellar giant.
As a result, the jet seems to propagate through space at superluminal velocity, in the present case as much as nine times the speed of light.
The discovery is of interest not only to cosmic ray scientists.
It proves that at a relatively small distance from Earth , mechanisms of jet formation and production of ultra-energetic photons must be at work.
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