About: Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory

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About: Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory Goto Sponge NotDistinct Permalink

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The Pierre Auger Collaboration has reported evidence for anisotropy in the distribution of arrival directions of the cosmic rays with energies E > Eth = 5.51019 eV. These show a correlation with the distribution of nearby extragalactic objects, including an apparent excess around the direction of Centaurus A. If the particles responsible for these excesses at E > Eth are heavy nuclei with charge Z, the proton component of the sources should lead to excesses in the same regions at energies E/Z. We here report the lack of anisotropies in these directions at energies above Eth/Z (for illustrative values of Z = 6, 13, 26). If the anisotropies above Eth are due to nuclei with charge Z, and under reasonable assumptions about the acceleration process, these observations imply stringent constraints on the allowed proton fraction at the lower energies. The Pierre Auger Collaboration has reported evidence for anisotropy in the distribution of arrival directions of the cosmic rays with energies E > Eth = 5.51019 eV. These show a correlation with the distribution of nearby extragalactic objects, including an apparent excess around the direction of Centaurus A. If the particles responsible for these excesses at E > Eth are heavy nuclei with charge Z, the proton component of the sources should lead to excesses in the same regions at energies E/Z. We here report the lack of anisotropies in these directions at energies above Eth/Z (for illustrative values of Z = 6, 13, 26). If the anisotropies above Eth are due to nuclei with charge Z, and under reasonable assumptions about the acceleration process, these observations imply stringent constraints on the allowed proton fraction at the lower energies. (en)
Title	Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory (en)
skos:prefLabel	Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory (en)
skos:notation	RIV/68378271:_____/11:00371933!RIV13-AV0-68378271
http://linked.open...avai/predkladatel	Fyzikální ústav AV ČR, v.v.i.
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(1M06002), P(KJB100100904), P(KJB300100801), P(LA08016), P(LC527), P(LG11044), P(MEB111003), Z(AV0Z10100502), Z(AV0Z10100522), Z(MSM0021620859)
http://linked.open...iv/cisloPeriodika	6
http://linked.open...vai/riv/dodaniDat	2013
http://linked.open...aciTvurceVysledku	Vícha, Jakub Trávníček, Petr Řídký, Jan Pech, Miroslav Šmída, Radomír Boháčová, Martina Nyklíček, Michal Palatka, Miroslav Mandát, Dušan Prouza, Michael Ebr, Jan Nečesal, Petr Nožka, Libor Schovánek, Petr Schovancová, Jaroslava Chudoba, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Fyzikální ústav AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	186303
http://linked.open...ai/riv/idVysledku	RIV/68378271:_____/11:00371933
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	ultra high energy cosmic rays; cosmic ray experiments (en)
http://linked.open.../riv/klicoveSlovo	cosmic ray experiments ultra high energy cosmic rays
http://linked.open...odStatuVydavatele	GB - Spojené království Velké Británie a Severního Irska
http://linked.open...ontrolniKodProRIV	[7314B3AA3C8C]
http://linked.open...i/riv/nazevZdroje	Journal of Cosmology and Astroparticle Physics
http://linked.open...in/vavai/riv/obor	BF
http://linked.open...ichTvurcuVysledku	16 (xsd:int)
http://linked.open...cetTvurcuVysledku	493 (xsd:int)
http://linked.open...vavai/riv/projekt	Optical structures, detection systems and relevant technologies for low photon number applications Advanced computer technologies in the framework of Pierre Auger Observatory: Distributed data management on the Grid and online atmospheric monitoring Study of parameters of atmospheric showers sensitive to mass composition of cosmic rays The origin of the highest-energy cosmic rays observed by the Auger experiment Participation in the project of the Pierre Auger Observatory Center for Particle Physics Participation in the international Pierre Auger Observatory project.
http://linked.open...UplatneniVysledku	2011
http://linked.open...v/svazekPeriodika	11
http://linked.open...iv/tvurceVysledku	Abreu, P. Aglietta, M. Ahn, E. J. Boháčová, Martina Chudoba, Jiří Ebr, Jan Mandát, Dušan Nožka, Libor Nečesal, Petr Nyklíček, Michal Palatka, Miroslav Pech, Miroslav Prouza, Michael Schovancová, Jaroslava Schovánek, Petr Trávníček, Petr Vícha, Jakub Řídký, Jan Šmída, Radomír
http://linked.open...ain/vavai/riv/wos	000292332400022
http://linked.open...n/vavai/riv/zamer	Jevy fyziky elementárních částic přesahující standardní model Wave and Corpuscular Light Propagation, Optical Materials and Technology Výzkum vlastností jader a subjaderných částic a jejich interakcí
issn	1475-7516
number of pages	21 (xsd:int)
http://bibframe.org/vocab/doi	10.1088/1475-7516/2011/06/022
is http://linked.open...avai/riv/vysledek of	Anisotropy and chemical composition of ultra-high energy cosmic rays using arrival directions measured by the Pierre Auger Observatory

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