Energy spectra of carbon and oxygen cosmic rays with CALET on the International Space Station

the CALET Collaboration

Energy spectra of carbon and oxygen cosmic rays with CALET on the International Space Station

the CALET Collaboration

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

Abstract

We present the measurements of the energy spectra of carbon and oxygen nuclei in cosmic rays based on 4 years of observation with the Calorimetric Electron Telescope (CALET) on the International Space Station. The energy spectra are measured from 10 GeV/n to 2.2 TeV/n with an all calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length and equipped with charge detectors capable of single element resolution. Data analysis, including the detailed assessment of systematic uncertainties, and results are reported. The observed carbon and oxygen fluxes show a spectral hardening around 200 GeV/n established with a significance > 3σ. They have the same energy dependence and a constant C/O flux ratio above 25 GeV/n. These measurements will contribute to a better understanding of the origin of the spectral hardening.

Original language	English
Article number	093
Journal	Proceedings of Science
Volume	395
Publication status	Published - 2022 Mar 18
Event	37th International Cosmic Ray Conference, ICRC 2021 - Virtual, Berlin, Germany Duration: 2021 Jul 12 → 2021 Jul 23

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Cite this

@article{3307d248c86a4cdca6fc679e74f925a5,

title = "Energy spectra of carbon and oxygen cosmic rays with CALET on the International Space Station",

abstract = "We present the measurements of the energy spectra of carbon and oxygen nuclei in cosmic rays based on 4 years of observation with the Calorimetric Electron Telescope (CALET) on the International Space Station. The energy spectra are measured from 10 GeV/n to 2.2 TeV/n with an all calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length and equipped with charge detectors capable of single element resolution. Data analysis, including the detailed assessment of systematic uncertainties, and results are reported. The observed carbon and oxygen fluxes show a spectral hardening around 200 GeV/n established with a significance > 3σ. They have the same energy dependence and a constant C/O flux ratio above 25 GeV/n. These measurements will contribute to a better understanding of the origin of the spectral hardening.",

author = "{the CALET Collaboration} and Paolo Maestro and O. Adriani and Y. Akaike and K. Asano and Y. Asaoka and E. Berti and G. Bigongiari and Binns, {W. R.} and M. Bongi and P. Brogi and A. Bruno and Buckley, {J. H.} and N. Cannady and G. Castellini and C. Checchia and Cherry, {M. L.} and G. Collazuol and K. Ebisawa and Ficklin, {A. W.} and H. Fuke and S. Gonzi and Guzik, {T. G.} and T. Hams and K. Hibino and M. Ichimura and K. Ioka and W. Ishizaki and Israel, {M. H.} and K. Kasahara and J. Kataoka and R. Kataoka and Y. Katayose and C. Kato and N. Kawanaka and Y. Kawakubo and K. Kobayashi and K. Kohri and Krawczynski, {H. S.} and Krizmanic, {J. F.} and J. Link and Marrocchesi, {P. S.} and Messineo, {A. M.} and Mitchell, {J. W.} and S. Miyake and Moiseev, {A. A.} and M. Mori and N. Mori and Motz, {H. M.} and K. Munakata and K. Yoshida",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s).; 37th International Cosmic Ray Conference, ICRC 2021 ; Conference date: 12-07-2021 Through 23-07-2021",

year = "2022",

month = mar,

day = "18",

language = "English",

volume = "395",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Energy spectra of carbon and oxygen cosmic rays with CALET on the International Space Station

AU - the CALET Collaboration

AU - Maestro, Paolo

AU - Adriani, O.

AU - Akaike, Y.

AU - Asano, K.

AU - Asaoka, Y.

AU - Berti, E.

AU - Bigongiari, G.

AU - Binns, W. R.

AU - Bongi, M.

AU - Brogi, P.

AU - Bruno, A.

AU - Buckley, J. H.

AU - Cannady, N.

AU - Castellini, G.

AU - Checchia, C.

AU - Cherry, M. L.

AU - Collazuol, G.

AU - Ebisawa, K.

AU - Ficklin, A. W.

AU - Fuke, H.

AU - Gonzi, S.

AU - Guzik, T. G.

AU - Hams, T.

AU - Hibino, K.

AU - Ichimura, M.

AU - Ioka, K.

AU - Ishizaki, W.

AU - Israel, M. H.

AU - Kasahara, K.

AU - Kataoka, J.

AU - Kataoka, R.

AU - Katayose, Y.

AU - Kato, C.

AU - Kawanaka, N.

AU - Kawakubo, Y.

AU - Kobayashi, K.

AU - Kohri, K.

AU - Krawczynski, H. S.

AU - Krizmanic, J. F.

AU - Link, J.

AU - Marrocchesi, P. S.

AU - Messineo, A. M.

AU - Mitchell, J. W.

AU - Miyake, S.

AU - Moiseev, A. A.

AU - Mori, M.

AU - Mori, N.

AU - Motz, H. M.

AU - Munakata, K.

AU - Yoshida, K.

PY - 2022/3/18

Y1 - 2022/3/18

N2 - We present the measurements of the energy spectra of carbon and oxygen nuclei in cosmic rays based on 4 years of observation with the Calorimetric Electron Telescope (CALET) on the International Space Station. The energy spectra are measured from 10 GeV/n to 2.2 TeV/n with an all calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length and equipped with charge detectors capable of single element resolution. Data analysis, including the detailed assessment of systematic uncertainties, and results are reported. The observed carbon and oxygen fluxes show a spectral hardening around 200 GeV/n established with a significance > 3σ. They have the same energy dependence and a constant C/O flux ratio above 25 GeV/n. These measurements will contribute to a better understanding of the origin of the spectral hardening.

AB - We present the measurements of the energy spectra of carbon and oxygen nuclei in cosmic rays based on 4 years of observation with the Calorimetric Electron Telescope (CALET) on the International Space Station. The energy spectra are measured from 10 GeV/n to 2.2 TeV/n with an all calorimetric instrument with a total thickness corresponding to 1.3 nuclear interaction length and equipped with charge detectors capable of single element resolution. Data analysis, including the detailed assessment of systematic uncertainties, and results are reported. The observed carbon and oxygen fluxes show a spectral hardening around 200 GeV/n established with a significance > 3σ. They have the same energy dependence and a constant C/O flux ratio above 25 GeV/n. These measurements will contribute to a better understanding of the origin of the spectral hardening.

UR - http://www.scopus.com/inward/record.url?scp=85145255161&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85145255161&partnerID=8YFLogxK

M3 - Conference article

AN - SCOPUS:85145255161

SN - 1824-8039

VL - 395

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 093

T2 - 37th International Cosmic Ray Conference, ICRC 2021

Y2 - 12 July 2021 through 23 July 2021

ER -

Energy spectra of carbon and oxygen cosmic rays with CALET on the International Space Station

Abstract

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