DO WE SEE THE ‘IRON PEAK’?

Recent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’. The position and the shape of this structure lead us to associate its likely origin...

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Main Authors: Anatoly D. Erlykin, Arnold W. Wolfendale
Format: Article
Language:English
Published: CTU Central Library 2013-12-01
Series:Acta Polytechnica
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/1961
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spelling doaj-dcafa8bfd011425ca3888314243c7afc2020-11-24T20:55:08ZengCTU Central LibraryActa Polytechnica1210-27091805-23632013-12-0153A10.14311/AP.2013.53.07241951DO WE SEE THE ‘IRON PEAK’?Anatoly D. Erlykin0Arnold W. Wolfendale1P.N. Lebedev Physical Institute, Moscow; Department of Physics, Durham University, Durham, UKDepartment of Physics, Durham University, DurhamRecent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’. The position and the shape of this structure lead us to associate its likely origin with the same single source responsible for the the knee. We have analysed the shape of the single source spectrum and concluded that its mass composition is rather similar to that for the bulk of CR in the TeV ÷ PeV region. Since it is generally accepted that these CR originate mainly in supernova explosions, this gives an additional argument in favour of our single source being a supernova remnant.https://ojs.cvut.cz/ojs/index.php/ap/article/view/1961
collection DOAJ
language English
format Article
sources DOAJ
author Anatoly D. Erlykin
Arnold W. Wolfendale
spellingShingle Anatoly D. Erlykin
Arnold W. Wolfendale
DO WE SEE THE ‘IRON PEAK’?
Acta Polytechnica
author_facet Anatoly D. Erlykin
Arnold W. Wolfendale
author_sort Anatoly D. Erlykin
title DO WE SEE THE ‘IRON PEAK’?
title_short DO WE SEE THE ‘IRON PEAK’?
title_full DO WE SEE THE ‘IRON PEAK’?
title_fullStr DO WE SEE THE ‘IRON PEAK’?
title_full_unstemmed DO WE SEE THE ‘IRON PEAK’?
title_sort do we see the ‘iron peak’?
publisher CTU Central Library
series Acta Polytechnica
issn 1210-2709
1805-2363
publishDate 2013-12-01
description Recent measurements of the cosmic ray (CR) energy spectrum in the PeV region and above have confirmed the remarkable sharpness of the knee and revealed another structure at about 70PeV which we call the ‘Iron Peak’. The position and the shape of this structure lead us to associate its likely origin with the same single source responsible for the the knee. We have analysed the shape of the single source spectrum and concluded that its mass composition is rather similar to that for the bulk of CR in the TeV ÷ PeV region. Since it is generally accepted that these CR originate mainly in supernova explosions, this gives an additional argument in favour of our single source being a supernova remnant.
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/1961
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