Cosmic Ray Anisotropy with 11 Years of IceCube Data

The IceCube Collaboration

Cosmic Ray Anisotropy with 11 Years of IceCube Data

The IceCube Collaboration

Research output: Contribution to journal › Conference article › peer-review

Abstract

The IceCube Observatory provides our highest-statistics picture of the cosmic-ray arrival directions in the Southern Hemisphere, with over 700 billion cosmic-ray-induced muon events collected between May 2011 and May 2022. Using the larger data volume, we find an improved significance of the PeV cosmic ray anisotropy down to scales of 6°. In addition, we observe a variation in the angular power spectrum as a function of energy, hinting at a relative decrease in large-scale features above 100 TeV. The data-taking period covers a complete solar cycle, providing new insight into the time variability of the signal. We present preliminary results using this up-to-date event sample.

Original language	English (US)
Article number	360
Journal	Proceedings of Science
Volume	444
State	Published - Sep 27 2024
Event	38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan Duration: Jul 26 2023 → Aug 3 2023

All Science Journal Classification (ASJC) codes

General

Cite this

@article{1402d0c24d1e499f8d997904ac3fbe94,

title = "Cosmic Ray Anisotropy with 11 Years of IceCube Data",

abstract = "The IceCube Observatory provides our highest-statistics picture of the cosmic-ray arrival directions in the Southern Hemisphere, with over 700 billion cosmic-ray-induced muon events collected between May 2011 and May 2022. Using the larger data volume, we find an improved significance of the PeV cosmic ray anisotropy down to scales of 6°. In addition, we observe a variation in the angular power spectrum as a function of energy, hinting at a relative decrease in large-scale features above 100 TeV. The data-taking period covers a complete solar cycle, providing new insight into the time variability of the signal. We present preliminary results using this up-to-date event sample.",

author = "\{The IceCube Collaboration\} and R. Abbasi and M. Ackermann and J. Adams and Agarwalla, \{S. K.\} and Aguilar, \{J. A.\} and M. Ahlers and Alameddine, \{J. M.\} and Amin, \{N. M.\} and K. Andeen and G. Anton and C. Arg{\"u}elles and Y. Ashida and S. Athanasiadou and Axani, \{S. N.\} and X. Bai and Balagopal, \{A. V.\} and M. Baricevic and Barwick, \{S. W.\} and V. Basu and R. Bay and Beatty, \{J. J.\} and \{Becker Tjus\}, J. and J. Beise and C. Bellenghi and C. Benning and S. BenZvi and D. Berley and E. Bernardini and Besson, \{D. Z.\} and E. Blaufuss and S. Blot and F. Bontempo and Book, \{J. Y.\} and \{Boscolo Meneguolo\}, C. and S. B{\"o}ser and O. Botner and J. B{\"o}ttcher and E. Bourbeau and J. Braun and B. Brinson and J. Brostean-Kaiser and Burley, \{R. T.\} and Busse, \{R. S.\} and D. Butterfield and Campana, \{M. A.\} and K. Carloni and Carnie-Bronca, \{E. G.\} and S. Chattopadhyay and Cowen, \{D. F.\} and D. Fox",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 38th International Cosmic Ray Conference, ICRC 2023 ; Conference date: 26-07-2023 Through 03-08-2023",

year = "2024",

month = sep,

day = "27",

language = "English (US)",

volume = "444",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Cosmic Ray Anisotropy with 11 Years of IceCube Data

AU - The IceCube Collaboration

AU - Abbasi, R.

AU - Ackermann, M.

AU - Adams, J.

AU - Agarwalla, S. K.

AU - Aguilar, J. A.

AU - Ahlers, M.

AU - Alameddine, J. M.

AU - Amin, N. M.

AU - Andeen, K.

AU - Anton, G.

AU - Argüelles, C.

AU - Ashida, Y.

AU - Athanasiadou, S.

AU - Axani, S. N.

AU - Bai, X.

AU - Balagopal, A. V.

AU - Baricevic, M.

AU - Barwick, S. W.

AU - Basu, V.

AU - Bay, R.

AU - Beatty, J. J.

AU - Becker Tjus, J.

AU - Beise, J.

AU - Bellenghi, C.

AU - Benning, C.

AU - BenZvi, S.

AU - Berley, D.

AU - Bernardini, E.

AU - Besson, D. Z.

AU - Blaufuss, E.

AU - Blot, S.

AU - Bontempo, F.

AU - Book, J. Y.

AU - Boscolo Meneguolo, C.

AU - Böser, S.

AU - Botner, O.

AU - Böttcher, J.

AU - Bourbeau, E.

AU - Braun, J.

AU - Brinson, B.

AU - Brostean-Kaiser, J.

AU - Burley, R. T.

AU - Busse, R. S.

AU - Butterfield, D.

AU - Campana, M. A.

AU - Carloni, K.

AU - Carnie-Bronca, E. G.

AU - Chattopadhyay, S.

AU - Cowen, D. F.

AU - Fox, D.

PY - 2024/9/27

Y1 - 2024/9/27

N2 - The IceCube Observatory provides our highest-statistics picture of the cosmic-ray arrival directions in the Southern Hemisphere, with over 700 billion cosmic-ray-induced muon events collected between May 2011 and May 2022. Using the larger data volume, we find an improved significance of the PeV cosmic ray anisotropy down to scales of 6°. In addition, we observe a variation in the angular power spectrum as a function of energy, hinting at a relative decrease in large-scale features above 100 TeV. The data-taking period covers a complete solar cycle, providing new insight into the time variability of the signal. We present preliminary results using this up-to-date event sample.

AB - The IceCube Observatory provides our highest-statistics picture of the cosmic-ray arrival directions in the Southern Hemisphere, with over 700 billion cosmic-ray-induced muon events collected between May 2011 and May 2022. Using the larger data volume, we find an improved significance of the PeV cosmic ray anisotropy down to scales of 6°. In addition, we observe a variation in the angular power spectrum as a function of energy, hinting at a relative decrease in large-scale features above 100 TeV. The data-taking period covers a complete solar cycle, providing new insight into the time variability of the signal. We present preliminary results using this up-to-date event sample.

UR - https://www.scopus.com/pages/publications/85212256398

UR - https://www.scopus.com/pages/publications/85212256398#tab=citedBy

M3 - Conference article

AN - SCOPUS:85212256398

SN - 1824-8039

VL - 444

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 360

T2 - 38th International Cosmic Ray Conference, ICRC 2023

Y2 - 26 July 2023 through 3 August 2023

ER -

Cosmic Ray Anisotropy with 11 Years of IceCube Data

Abstract

All Science Journal Classification (ASJC) codes

Other files and links

Fingerprint

Cite this