13-16 February 2012
CERN
Europe/Zurich timezone

The Need for Hard Spectrum Local Sources of UHECR Nuclei

15 Feb 2012, 15:20
20m
503/1-001 - Council Chamber (CERN)

503/1-001 - Council Chamber

CERN

162
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Speaker

Dr Andrew Taylor (ISDC, University of Geneva)

Description

Using the recent Auger energy spectrum and composition analysis results, an investigation is carried out into the requirements placed on the UHECR sources. The spatial distribution of these sources is investigated along with the energy distribution of UHECR they output. These investigations reveal the need for local UHECR sources which output a hard spectrum of intermediate/heavy UHECR. These results demand that local (<80 Mpc) UHECR sources exist, placing exciting and difficult requirements on the local extragalactic candidate sources. None negligible (>0.01 nG) extragalactic magnetic fields are noted to further strengthen these results

Primary author

Dr Andrew Taylor (ISDC, University of Geneva)

Presentation Materials