Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005jrasc..99r.139k&link_type=abstract
Journal of the Royal Astronomical Society of Canada, Vol. 99, No. 4, p.139
Astronomy and Astrophysics
Astronomy
Scientific paper
A sequence of only partly understood physical processes produces the largest energy transfers in the Universe. Recent research at LANL has focused on this collection of puzzles, to the point where we can now better understand and quantify some of the plasma processes involved. It begins with a galaxy's central black-hole/accretion disk system. Via collimated jets, huge volumes of space are energized by a process that very efficiently extracts the BH's gravitational infall energy. In this process, the magnetic energy released into space is comparable to the photon energy released by QSOs. Observations indicate that 108 solar-mass galactic black holes inject 1061 ergs or more into intergalactic space, thereby converting accretion energy on AU scales into comparable amounts of magnetic and CR energy in the IGM. The latter constitutes "captured energy," as distinct from the photon energy, which propagates away at c. This process appears to involve spatially distributed particle acceleration in the IGM, and it may lead us to solve the mystery of the origin of the mysterious ultra-high energy cosmic rays (UHECRs).
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