Features of the energy spectrum of cosmic rays above 2.5×1018 eV using the pierre auger observatory

(The Pierre Auger Collaboration)

doi:10.1103/PhysRevLett.125.121106

Features of the energy spectrum of cosmic rays above 2.5×1018 eV using the pierre auger observatory

(The Pierre Auger Collaboration)

Producción científica: Artículo Científico › Artículo original › revisión exhaustiva

165 Citas (Scopus)

Resumen

We report a measurement of the energy spectrum of cosmic rays above 2.5×1018 eV based on 215 030 events. New results are presented: at about 1.3×1019 eV, the spectral index changes from 2.51±0.03(stat)±0.05(syst) to 3.05±0.05(stat)±0.10(syst), evolving to 5.1±0.3(stat)±0.1(syst) beyond 5×1019 eV, while no significant dependence of spectral features on the declination is seen in the accessible range. These features of the spectrum can be reproduced in models with energy-dependent mass composition. The energy density in cosmic rays above 5×1018 eV is [5.66±0.03(stat)±1.40(syst)]×1053 erg Mpc-3.

Idioma original	Inglés estadounidense
-	121106
Publicación	Physical Review Letters
Volumen	125
N.º	12
DOI	https://doi.org/10.1103/PhysRevLett.125.121106
Estado	Indizado - set. 2020
Publicado de forma externa	Sí

Nota bibliográfica

Publisher Copyright:
© 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

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@article{b5811fc22b9a4e51974df382fc4fd0e5,

title = "Features of the energy spectrum of cosmic rays above 2.5×1018 eV using the pierre auger observatory",

abstract = "We report a measurement of the energy spectrum of cosmic rays above 2.5×1018 eV based on 215 030 events. New results are presented: at about 1.3×1019 eV, the spectral index changes from 2.51±0.03(stat)±0.05(syst) to 3.05±0.05(stat)±0.10(syst), evolving to 5.1±0.3(stat)±0.1(syst) beyond 5×1019 eV, while no significant dependence of spectral features on the declination is seen in the accessible range. These features of the spectrum can be reproduced in models with energy-dependent mass composition. The energy density in cosmic rays above 5×1018 eV is [5.66±0.03(stat)±1.40(syst)]×1053 erg Mpc-3.",

author = "\{(The Pierre Auger Collaboration)\} and A. Aab and P. Abreu and M. Aglietta and Albury, \{J. M.\} and I. Allekotte and A. Almela and \{Alvarez Castillo\}, J. and J. Alvarez-Mu{\~n}iz and \{Alves Batista\}, R. and Anastasi, \{G. A.\} and L. Anchordoqui and B. Andrada and S. Andringa and C. Aramo and \{Ara{\'u}jo Ferreira\}, \{P. R.\} and H. Asorey and P. Assis and G. Avila and Badescu, \{A. M.\} and A. Bakalova and A. Balaceanu and F. Barbato and \{Barreira Luz\}, \{R. J.\} and Becker, \{K. H.\} and Bellido, \{J. A.\} and C. Berat and Bertaina, \{M. E.\} and X. Bertou and Biermann, \{P. L.\} and T. Bister and J. Biteau and A. Blanco and J. Blazek and C. Bleve and M. Boh{\'a}{\v c}ov{\'a} and D. Boncioli and C. Bonifazi and \{Bonneau Arbeletche\}, L. and N. Borodai and Botti, \{A. M.\} and J. Brack and T. Bretz and Briechle, \{F. L.\} and P. Buchholz and A. Bueno and S. Buitink and M. Buscemi and Caballero-Mora, \{K. S.\} and L. Caccianiga and C. Ventura",

note = "Publisher Copyright: {\textcopyright} 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2020",

month = sep,

doi = "10.1103/PhysRevLett.125.121106",

language = "American English",

volume = "125",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "12",

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TY - JOUR

T1 - Features of the energy spectrum of cosmic rays above 2.5×1018 eV using the pierre auger observatory

AU - (The Pierre Auger Collaboration)

AU - Aab, A.

AU - Abreu, P.

AU - Aglietta, M.

AU - Albury, J. M.

AU - Allekotte, I.

AU - Almela, A.

AU - Alvarez Castillo, J.

AU - Alvarez-Muñiz, J.

AU - Alves Batista, R.

AU - Anastasi, G. A.

AU - Anchordoqui, L.

AU - Andrada, B.

AU - Andringa, S.

AU - Aramo, C.

AU - Araújo Ferreira, P. R.

AU - Asorey, H.

AU - Assis, P.

AU - Avila, G.

AU - Badescu, A. M.

AU - Bakalova, A.

AU - Balaceanu, A.

AU - Barbato, F.

AU - Barreira Luz, R. J.

AU - Becker, K. H.

AU - Bellido, J. A.

AU - Berat, C.

AU - Bertaina, M. E.

AU - Bertou, X.

AU - Biermann, P. L.

AU - Bister, T.

AU - Biteau, J.

AU - Blanco, A.

AU - Blazek, J.

AU - Bleve, C.

AU - Boháčová, M.

AU - Boncioli, D.

AU - Bonifazi, C.

AU - Bonneau Arbeletche, L.

AU - Borodai, N.

AU - Botti, A. M.

AU - Brack, J.

AU - Bretz, T.

AU - Briechle, F. L.

AU - Buchholz, P.

AU - Bueno, A.

AU - Buitink, S.

AU - Buscemi, M.

AU - Caballero-Mora, K. S.

AU - Caccianiga, L.

AU - Ventura, C.

N1 - Publisher Copyright: © 2020 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2020/9

Y1 - 2020/9

N2 - We report a measurement of the energy spectrum of cosmic rays above 2.5×1018 eV based on 215 030 events. New results are presented: at about 1.3×1019 eV, the spectral index changes from 2.51±0.03(stat)±0.05(syst) to 3.05±0.05(stat)±0.10(syst), evolving to 5.1±0.3(stat)±0.1(syst) beyond 5×1019 eV, while no significant dependence of spectral features on the declination is seen in the accessible range. These features of the spectrum can be reproduced in models with energy-dependent mass composition. The energy density in cosmic rays above 5×1018 eV is [5.66±0.03(stat)±1.40(syst)]×1053 erg Mpc-3.

AB - We report a measurement of the energy spectrum of cosmic rays above 2.5×1018 eV based on 215 030 events. New results are presented: at about 1.3×1019 eV, the spectral index changes from 2.51±0.03(stat)±0.05(syst) to 3.05±0.05(stat)±0.10(syst), evolving to 5.1±0.3(stat)±0.1(syst) beyond 5×1019 eV, while no significant dependence of spectral features on the declination is seen in the accessible range. These features of the spectrum can be reproduced in models with energy-dependent mass composition. The energy density in cosmic rays above 5×1018 eV is [5.66±0.03(stat)±1.40(syst)]×1053 erg Mpc-3.

UR - https://www.scopus.com/pages/publications/85092348814

U2 - 10.1103/PhysRevLett.125.121106

DO - 10.1103/PhysRevLett.125.121106

M3 - Original Article

C2 - 33016715

AN - SCOPUS:85092348814

SN - 0031-9007

VL - 125

JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

M1 - 121106

ER -

Features of the energy spectrum of cosmic rays above 2.5×1018 eV using the pierre auger observatory

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