Active Galactic Nuclei: Sources for ultra high energy cosmic rays?

Peter L. Biermann, Julia K. Becker, Laurenţiu Caramete, Alex Curuţiu, Ralph Engel, Heino Falcke, L. Gergely, P. Gina Isar, Ioana C. Mariş, Athina Meli, Karl Heinz Kampert, Todor Stanev, Oana Taşcǎu, Christian Zier

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The origin of ultra high energy cosmic rays promises to lead us to a deeper understanding of the structure of matter. This is possible through the study of particle collisions at center-of-mass energies in interactions far larger than anything possible with the Large Hadron Collider, albeit at the substantial cost of no control over the sources and interaction sites. For the extreme energies we have to identify and understand the sources first, before trying to use them as physics laboratories. Here we describe the current stage of this exploration. The most promising contenders as sources are radio galaxies and gamma ray bursts. The sky distribution of observed events yields a hint favoring radio galaxies. Key in this quest are the intergalactic and galactic magnetic fields, whose strength and structure are not yet fully understood. Current data and statistics do not yet allow a final judgement. We outline how we may progress in the near future.

Original languageEnglish
Pages (from-to)61-78
Number of pages18
JournalNuclear Physics B - Proceedings Supplements
Volume190
Issue numberC
DOIs
Publication statusPublished - May 2009

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active galactic nuclei
cosmic rays
radio galaxies
interstellar magnetic fields
particle collisions
gamma ray bursts
center of mass
sky
energy
field strength
rays
statistics
interactions
costs
physics

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Cite this

Biermann, P. L., Becker, J. K., Caramete, L., Curuţiu, A., Engel, R., Falcke, H., ... Zier, C. (2009). Active Galactic Nuclei: Sources for ultra high energy cosmic rays? Nuclear Physics B - Proceedings Supplements, 190(C), 61-78. https://doi.org/10.1016/j.nuclphysbps.2009.03.069

Active Galactic Nuclei : Sources for ultra high energy cosmic rays? / Biermann, Peter L.; Becker, Julia K.; Caramete, Laurenţiu; Curuţiu, Alex; Engel, Ralph; Falcke, Heino; Gergely, L.; Isar, P. Gina; Mariş, Ioana C.; Meli, Athina; Kampert, Karl Heinz; Stanev, Todor; Taşcǎu, Oana; Zier, Christian.

In: Nuclear Physics B - Proceedings Supplements, Vol. 190, No. C, 05.2009, p. 61-78.

Research output: Contribution to journalArticle

Biermann, PL, Becker, JK, Caramete, L, Curuţiu, A, Engel, R, Falcke, H, Gergely, L, Isar, PG, Mariş, IC, Meli, A, Kampert, KH, Stanev, T, Taşcǎu, O & Zier, C 2009, 'Active Galactic Nuclei: Sources for ultra high energy cosmic rays?', Nuclear Physics B - Proceedings Supplements, vol. 190, no. C, pp. 61-78. https://doi.org/10.1016/j.nuclphysbps.2009.03.069
Biermann, Peter L. ; Becker, Julia K. ; Caramete, Laurenţiu ; Curuţiu, Alex ; Engel, Ralph ; Falcke, Heino ; Gergely, L. ; Isar, P. Gina ; Mariş, Ioana C. ; Meli, Athina ; Kampert, Karl Heinz ; Stanev, Todor ; Taşcǎu, Oana ; Zier, Christian. / Active Galactic Nuclei : Sources for ultra high energy cosmic rays?. In: Nuclear Physics B - Proceedings Supplements. 2009 ; Vol. 190, No. C. pp. 61-78.
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