ISSN:
1476-4687
Source:
Nature Archives 1869 - 2009
Topics:
Biology
,
Chemistry and Pharmacology
,
Medicine
,
Natural Sciences in General
,
Physics
Notes:
[Auszug] There are several feedback mechanisms that could operate in the particle acceleration zone of an AGN9"11. The one that we propose exists when sufficiently relativistic protons are present for the following chain reaction to occur: a single photon collides with a relativistic proton producing an ...
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1038/360135a0
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