BL Lacertae are sources of the observed ultra-high energy cosmic rays
We calculate angular correlation function between ultra-high energy cosmic rays (UHECR) observed by Yakutsk and AGASA experiments, and most powerful BL Lacertae objects (quasars with jets directed along the line of sight). We find significant correlation at 2.5 degrees with the probability of chance...
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ftcern:oai:cds.cern.ch:489178 2024-09-15T18:40:58+00:00 BL Lacertae are sources of the observed ultra-high energy cosmic rays Tinyakov, P.G. Tkachev, I.I. 2001-02-27 https://doi.org/10.1134/1.1434282 http://cds.cern.ch/record/489178 eng eng doi:10.1134/1.1434282 http://cds.cern.ch/record/489178 astro-ph/0102476 oai:cds.cern.ch:489178 Astrophysics and Astronomy 2001 ftcern https://doi.org/10.1134/1.1434282 2024-07-22T13:43:41Z We calculate angular correlation function between ultra-high energy cosmic rays (UHECR) observed by Yakutsk and AGASA experiments, and most powerful BL Lacertae objects (quasars with jets directed along the line of sight). We find significant correlation at 2.5 degrees with the probability of chance coincidence 2 x 10^{-5} and conclude that some of BL Lacertae are sources of the observed UHECR. We also see correlations at 10 degrees with the probability of coincidence 3 x 10^{-4}. A natural interpretation of this result is the existence of neutral and charged components of cosmic rays at highest energies, with charged primaries being deflected in extragalactic magnetic fields (EGMF) by an angle of order 10 degrees. The magnitude of EGMF deduced from here is of order 10^{-9} G assuming correlation length 1 Mpc. We calculate angular correlation function between ultra-high energy cosmic rays (UHECR) observed by Yakutsk and AGASA experiments, and most powerful BL Lacertae objects. We find significant correlations which correspond to the probability of statistical fluctuation less than $10^{-4}$, including penatly for selecting the subset of brightest BL Lacs. We conclude that some of BL Lacs are sources of the observed UHECR and present a list of most probable candidates. Other/Unknown Material Yakutsk CERN Document Server (CDS) Journal of Experimental and Theoretical Physics Letters 74 9 445 448 |
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CERN Document Server (CDS) |
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English |
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Astrophysics and Astronomy |
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Astrophysics and Astronomy Tinyakov, P.G. Tkachev, I.I. BL Lacertae are sources of the observed ultra-high energy cosmic rays |
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Astrophysics and Astronomy |
description |
We calculate angular correlation function between ultra-high energy cosmic rays (UHECR) observed by Yakutsk and AGASA experiments, and most powerful BL Lacertae objects (quasars with jets directed along the line of sight). We find significant correlation at 2.5 degrees with the probability of chance coincidence 2 x 10^{-5} and conclude that some of BL Lacertae are sources of the observed UHECR. We also see correlations at 10 degrees with the probability of coincidence 3 x 10^{-4}. A natural interpretation of this result is the existence of neutral and charged components of cosmic rays at highest energies, with charged primaries being deflected in extragalactic magnetic fields (EGMF) by an angle of order 10 degrees. The magnitude of EGMF deduced from here is of order 10^{-9} G assuming correlation length 1 Mpc. We calculate angular correlation function between ultra-high energy cosmic rays (UHECR) observed by Yakutsk and AGASA experiments, and most powerful BL Lacertae objects. We find significant correlations which correspond to the probability of statistical fluctuation less than $10^{-4}$, including penatly for selecting the subset of brightest BL Lacs. We conclude that some of BL Lacs are sources of the observed UHECR and present a list of most probable candidates. |
author |
Tinyakov, P.G. Tkachev, I.I. |
author_facet |
Tinyakov, P.G. Tkachev, I.I. |
author_sort |
Tinyakov, P.G. |
title |
BL Lacertae are sources of the observed ultra-high energy cosmic rays |
title_short |
BL Lacertae are sources of the observed ultra-high energy cosmic rays |
title_full |
BL Lacertae are sources of the observed ultra-high energy cosmic rays |
title_fullStr |
BL Lacertae are sources of the observed ultra-high energy cosmic rays |
title_full_unstemmed |
BL Lacertae are sources of the observed ultra-high energy cosmic rays |
title_sort |
bl lacertae are sources of the observed ultra-high energy cosmic rays |
publishDate |
2001 |
url |
https://doi.org/10.1134/1.1434282 http://cds.cern.ch/record/489178 |
genre |
Yakutsk |
genre_facet |
Yakutsk |
op_relation |
doi:10.1134/1.1434282 http://cds.cern.ch/record/489178 astro-ph/0102476 oai:cds.cern.ch:489178 |
op_doi |
https://doi.org/10.1134/1.1434282 |
container_title |
Journal of Experimental and Theoretical Physics Letters |
container_volume |
74 |
container_issue |
9 |
container_start_page |
445 |
op_container_end_page |
448 |
_version_ |
1810485360844603392 |