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CALET on the International Space Station: the first three years of observationsThe CALorimetric Electron Telescope CALET is a space instrument designed to carry out
precision measurements of high energy cosmic-rays on the JEM-EF external platform on the International Space Station, where it has been collecting science data continuously since mid-October 2015. In addition to its primary goal of identifying nearby sources of high-energy electrons and possible signatures of dark matter in the electron spectrum, CALET is carrying out extensive measurements of the energy spectra, relative abundances and secondary-to-primary ratios of elements from proton to iron, and even above (up to Z = 40), studying the details of galactic particle propagation and acceleration. An overview of CALET based on the data taken during the first three years of observations is presented, including a direct measurement of the electron+positron energy spectrum from 11 GeV to 4.8 TeV. The proton spectrum has been measured from 50 GeV to 10 TeV covering, for the first time with a single space-borne instrument, the whole energy interval previously investigated in separate sub-ranges by magnetic
spectrometers and calorimetric instruments. Preliminary spectra of cosmic-ray nuclei are also presented, together with gamma-ray observations and searches for an e.m. counterpart of LIGO/ Virgo GW events.
Document ID
20210014004
Acquisition Source
Goddard Space Flight Center
Document Type
Reprint (Version printed in journal)
Authors
P Brogi ORCID(University of Siena Siena, Italy)
O Adriani (University of Florence Florence, Toscana, Italy)
Y Akaike (Goddard Space Flight Center Greenbelt, Maryland, United States)
K Asano ORCID(University of Tokyo Tokyo, Japan)
Y Asaoka (Waseda University Tokyo, Japan)
M G Bagliesi (University of Siena Siena, Italy)
E Berti (University of Florence Florence, Toscana, Italy)
G Bigongiari (University of Siena Siena, Italy)
W R Binns (Washington University in St. Louis St Louis, Missouri, United States)
S Bonechi (University of Siena Siena, Italy)
M Bongi (University of Florence Florence, Toscana, Italy)
A Bruno (Catholic University of America Washington D.C., District of Columbia, United States)
J H Buckley (Washington University in St. Louis St Louis, Missouri, United States)
N Cannady ORCID(University of Maryland, Baltimore County Baltimore, Maryland, United States)
G Castellini (Nello Carrara Institute of Applied Physics Sesto Fiorentino, Italy)
C Checchia (University of Florence Florence, Toscana, Italy)
M L Cherry (Louisiana State University Baton Rouge, Louisiana, United States)
G Collazuol (University of Padua Padova, Veneto, Italy)
V Di Felice (University of Rome Tor Vergata Rome, Lazio, Italy)
K Ebisawa (Institute of Space and Astronautical Science Tokyo, Japan)
H Fuke ORCID(Institute of Space and Astronautical Science Tokyo, Japan)
T G Guzik (Louisiana State University Baton Rouge, Louisiana, United States)
T Hams (University of Maryland, Baltimore County Baltimore, Maryland, United States)
K Hibino (Kanagawa University Yokohama, Japan)
M Ichimura (Hirosaki University Hirosaki, Japan)
K Ioka (Kyoto University Kyoto, Japan)
W Ishizaki (University of Tokyo Tokyo, Japan)
M H Israel (Washington University in St. Louis St Louis, Missouri, United States)
K Kasahara (Waseda University Tokyo, Japan)
J Kataoka (Waseda University Tokyo, Japan)
R Kataoka (National Institute of Polar Research Tokyo, Japan)
Y Katayose (Yokohama National University Yokohama, Kanagawa, Japan)
C Kato (Shinshu University Matsumoto, Japan)
N Kawanaka (Kyoto University Kyoto, Japan)
Y Kawakubo (Louisiana State University Baton Rouge, Louisiana, United States)
K Kohri (High Energy Accelerator Research Organization Tsukuba, Japan)
H S Krawczynski (Washington University in St. Louis St Louis, Missouri, United States)
J F Krizmanic (University of Maryland, Baltimore Baltimore, Maryland, United States)
J Link (University of Maryland, Baltimore County Baltimore, Maryland, United States)
P Maestro (University of Siena Siena, Italy)
P S Marrocchesi (University of Siena Siena, Italy)
A M Messineo (INFN Sezione di Pisa Pisa, Italy)
J W Mitchell (Goddard Space Flight Center Greenbelt, Maryland, United States)
S Miyake (National Institute Of Technology Hachiōji, Japan)
A A Moiseev (University of Maryland, College Park College Park, Maryland, United States)
M Mori (Ritsumeikan University Kyoto, Japan)
N. Mori ORCID(National Institute for Nuclear Physics Rome, Italy)
H M Motz (Waseda University Tokyo, Japan)
K Munakata (Shinshu University Matsumoto, Japan)
H Murakami (Waseda University Tokyo, Japan)
S Nakahira (RIKEN Wako, Saitama, Japan)
J Nishimura (Institute of Space and Astronautical Science Tokyo, Japan)
G A de Nolfo (Goddard Space Flight Center Greenbelt, Maryland, United States)
S Okuno (Kanagawa University Yokohama, Japan)
J F Ormes (Ritsumeikan University Kyoto, Japan)
N Ospina ORCID(University of Padua Padova, Veneto, Italy)
S Ozawa (Waseda University Tokyo, Japan)
L Pacini (National Institute for Nuclear Physics Rome, Italy)
F Palma (University of Rome Tor Vergata Rome, Lazio, Italy)
P Papini (National Institute for Nuclear Physics Rome, Italy)
B F Rauch (Washington University in St. Louis St Louis, Missouri, United States)
S B Ricciarini (National Institute for Nuclear Physics Rome, Italy)
K Saka (University of Maryland, Baltimore County Baltimore, Maryland, United States)
T Sakamoto (Aoyama Gakuin University Tokyo, Japan)
M Sasaki (University of Maryland, College Park College Park, Maryland, United States)
Y Shimizu (Kanagawa University Yokohama, Japan)
A Shiomi (Nihon University Tokyo, Japan)
R Sparvoli (University of Rome Tor Vergata Rome, Lazio, Italy)
P Spillantini (University of Florence Florence, Toscana, Italy)
F Stolzi (University of Siena Siena, Italy)
S Sugita (Aoyama Gakuin University Tokyo, Japan)
J E Suh (University of Siena Siena, Italy)
A Sulaj (University of Siena Siena, Italy)
I Takahashi (University of Tokyo Tokyo, Japan)
M Takita (University of Tokyo Tokyo, Japan)
T Tamura (Kanagawa University Yokohama, Japan)
T Terasawa (RIKEN Wako, Saitama, Japan)
S Torii (Waseda University Tokyo, Japan)
Y Tsunesada ORCID(Osaka City University Osaka, Japan)
Y Uchihori (National Institutes for Quantum and Radiological Science and Technology Chiba, Japan)
E Vannuccini (National Institute for Nuclear Physics Rome, Italy)
J P Wefel (Louisiana State University Baton Rouge, Louisiana, United States)
K Yamaoka (Nagoya University Nagoya, Japan)
S Yanagita (Ibaraki University Ibaraki, Japan)
A Yoshida (Aoyama Gakuin University Tokyo, Japan)
K Yoshida (Shibaura Institute of Technology Tokyo, Japan)
Date Acquired
April 19, 2021
Publication Date
May 29, 2020
Publication Information
Publication: Physica Scripta
Publisher: IOP Publishing / Royal Swedish Academy of Sciences / Physical Societies of the Nordic Countries
Volume: 95
Issue: 7
Issue Publication Date: July 1, 2020
ISSN: 0031-8949
e-ISSN: 1402-4896
DOI: https://doi.org/10.1088/1402-4896/ab957d
Subject Category
Instrumentation And Photography
Astrophysics
Funding Number(s)
CONTRACT_GRANT: 80GSFC17M0002
CONTRACT_GRANT: 80NSSC21M0180
Distribution Limits
Public
Copyright
Portions of document may include copyright protected material.
Technical Review
External Peer Committee
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