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VLA gives new insight into galaxy cluster's spectacular 'min

 
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Joined: 02 Jan 2007
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PostPosted: 14.06.2017 4:45    Post subject: VLA gives new insight into galaxy cluster's spectacular 'min Reply with quote

VLA gives new insight into galaxy cluster's spectacular 'mini-halo'

https://m.phys.org/news/2017-06-vla-insight-galaxy-cluster-spectacular.html

"The new details indicate that the halo's radio emission is caused by complex mechanisms that vary throughout the cluster. As theorized before, some radio emission is caused by particles being reaccelerated when small groups of galaxies collide with the cluster and give the particles a gravitational shove. In addition, however, the scientists now think that the radio emission is also caused by the powerful jets of particles generated by the supermassive black hole at the core of the central galaxy that give an extra "kick" of energy to the particles."

"As theorized before, some radio emission is caused by particles being reaccelerated when small groups of galaxies collide with the cluster and give the particles a gravitational shove."

Sillä lailla!!!


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