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Are AGN the Best Factories for High Energy Particles and Photons?

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 نشر من قبل Suzy Collin
 تاريخ النشر 2008
  مجال البحث فيزياء
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 تأليف Suzy Collin




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The main properties of AGN are reviewed, focussing on the accretion process and on the question of whether AGN are the best factories of ultra high energy particles and photons. I recall the large differences between the accretion/ejection flows in strong and weak accretors, and I conclude that, since low luminosity AGN and even dormant massive black holes in nuclei of galaxies are powering strong confined magnetized jets able to accelerate high energy particles, and are present in a large proportion of galaxies, they might be better potential sources of high energy particles and photons than luminous AGN and powerful radio galaxies.

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