CALET observations of galactic electrons in the heliosphere

Y. Komori; Shoji Torii; T. Tamura; K. Yoshida; J. Nishimura; T. Terasawa; H. Fuke; K. Hibino; M. Ichimura; K. Kasahara; K. Kashiwagi; Y. Katayose; H. Kitamura; T. Kobayashi; S. Kuramata; F. Makino; K. Mizutani; H. Murakami; S. Okuno; Y. Saito; M. Shibata; M. Takayanagi; N. Tateyama; H. Tomida; Y. Uchihori; S. Ueno; T. Yamagami; T. Yuda

CALET observations of galactic electrons in the heliosphere

Y. Komori, Shoji Torii, T. Tamura, K. Yoshida, J. Nishimura, T. Terasawa, H. Fuke, K. Hibino, M. Ichimura, K. Kasahara, K. Kashiwagi, Y. Katayose, H. Kitamura, T. Kobayashi, S. Kuramata, F. Makino, K. Mizutani, H. Murakami, S. Okuno, Y. SaitoM. Shibata, M. Takayanagi, N. Tateyama, H. Tomida, Y. Uchihori, S. Ueno, T. Yamagami, T. Yuda

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

The CALorimetric Electron Telescope(CALET) mission is proposed to measure galactic electrons and gamma rays on ISS/JEM for three years[1]. In this paper we report the purpose of this project in solar physics and the expected results from precise measurement of electron energy spectrum in the 1-100GeV energy range. The CALET measurement of long-term variations of the energy spectrum will produce a wealth of data to investigate electron propagation in the heliosphere. CALET does not distinguish positive charge from negative one. However, we can evaluate the charge sign dependence of solar modulation using correlation with the neutron monitors, since most particles are negative electrons in this energy range. Further we estimate transport parameters, mainly the energy dependence of diffusion coefficient in the heliosphere. CALET will also have a capability of measuring the short-term variation of around ten Forbush decreases(Fds) for three years. Precise measurements of the energy spectral variation of Fds will give a conclusion of the energy dependence of Fds.

Original language	English
Title of host publication	29th International Cosmic Ray Conference, ICRC 2005
Publisher	Tata Institute of Fundamental Research
Pages	453-456
Number of pages	4
Volume	2
Publication status	Published - 2005
Event	29th International Cosmic Ray Conference, ICRC 2005 - Pune Duration: 2005 Aug 3 → 2005 Aug 10

Other

Other	29th International Cosmic Ray Conference, ICRC 2005
City	Pune
Period	05/8/3 → 05/8/10

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Komori, Y., Torii, S., Tamura, T., Yoshida, K., Nishimura, J., Terasawa, T., Fuke, H., Hibino, K., Ichimura, M., Kasahara, K., Kashiwagi, K., Katayose, Y., Kitamura, H., Kobayashi, T., Kuramata, S., Makino, F., Mizutani, K., Murakami, H., Okuno, S., ... Yuda, T. (2005). CALET observations of galactic electrons in the heliosphere. In 29th International Cosmic Ray Conference, ICRC 2005 (Vol. 2, pp. 453-456). Tata Institute of Fundamental Research.

Komori, Y, Torii, S, Tamura, T, Yoshida, K, Nishimura, J, Terasawa, T, Fuke, H, Hibino, K, Ichimura, M, Kasahara, K, Kashiwagi, K, Katayose, Y, Kitamura, H, Kobayashi, T, Kuramata, S, Makino, F, Mizutani, K, Murakami, H, Okuno, S, Saito, Y, Shibata, M, Takayanagi, M, Tateyama, N, Tomida, H, Uchihori, Y, Ueno, S, Yamagami, T & Yuda, T 2005, CALET observations of galactic electrons in the heliosphere. in 29th International Cosmic Ray Conference, ICRC 2005. vol. 2, Tata Institute of Fundamental Research, pp. 453-456, 29th International Cosmic Ray Conference, ICRC 2005, Pune, 05/8/3.

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title = "CALET observations of galactic electrons in the heliosphere",

abstract = "The CALorimetric Electron Telescope(CALET) mission is proposed to measure galactic electrons and gamma rays on ISS/JEM for three years[1]. In this paper we report the purpose of this project in solar physics and the expected results from precise measurement of electron energy spectrum in the 1-100GeV energy range. The CALET measurement of long-term variations of the energy spectrum will produce a wealth of data to investigate electron propagation in the heliosphere. CALET does not distinguish positive charge from negative one. However, we can evaluate the charge sign dependence of solar modulation using correlation with the neutron monitors, since most particles are negative electrons in this energy range. Further we estimate transport parameters, mainly the energy dependence of diffusion coefficient in the heliosphere. CALET will also have a capability of measuring the short-term variation of around ten Forbush decreases(Fds) for three years. Precise measurements of the energy spectral variation of Fds will give a conclusion of the energy dependence of Fds.",

author = "Y. Komori and Shoji Torii and T. Tamura and K. Yoshida and J. Nishimura and T. Terasawa and H. Fuke and K. Hibino and M. Ichimura and K. Kasahara and K. Kashiwagi and Y. Katayose and H. Kitamura and T. Kobayashi and S. Kuramata and F. Makino and K. Mizutani and H. Murakami and S. Okuno and Y. Saito and M. Shibata and M. Takayanagi and N. Tateyama and H. Tomida and Y. Uchihori and S. Ueno and T. Yamagami and T. Yuda",

year = "2005",

language = "English",

volume = "2",

pages = "453--456",

booktitle = "29th International Cosmic Ray Conference, ICRC 2005",

publisher = "Tata Institute of Fundamental Research",

note = "29th International Cosmic Ray Conference, ICRC 2005 ; Conference date: 03-08-2005 Through 10-08-2005",

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TY - GEN

T1 - CALET observations of galactic electrons in the heliosphere

AU - Komori, Y.

AU - Torii, Shoji

AU - Tamura, T.

AU - Yoshida, K.

AU - Nishimura, J.

AU - Terasawa, T.

AU - Fuke, H.

AU - Hibino, K.

AU - Ichimura, M.

AU - Kasahara, K.

AU - Kashiwagi, K.

AU - Katayose, Y.

AU - Kitamura, H.

AU - Kobayashi, T.

AU - Kuramata, S.

AU - Makino, F.

AU - Mizutani, K.

AU - Murakami, H.

AU - Okuno, S.

AU - Saito, Y.

AU - Shibata, M.

AU - Takayanagi, M.

AU - Tateyama, N.

AU - Tomida, H.

AU - Uchihori, Y.

AU - Ueno, S.

AU - Yamagami, T.

AU - Yuda, T.

PY - 2005

Y1 - 2005

N2 - The CALorimetric Electron Telescope(CALET) mission is proposed to measure galactic electrons and gamma rays on ISS/JEM for three years[1]. In this paper we report the purpose of this project in solar physics and the expected results from precise measurement of electron energy spectrum in the 1-100GeV energy range. The CALET measurement of long-term variations of the energy spectrum will produce a wealth of data to investigate electron propagation in the heliosphere. CALET does not distinguish positive charge from negative one. However, we can evaluate the charge sign dependence of solar modulation using correlation with the neutron monitors, since most particles are negative electrons in this energy range. Further we estimate transport parameters, mainly the energy dependence of diffusion coefficient in the heliosphere. CALET will also have a capability of measuring the short-term variation of around ten Forbush decreases(Fds) for three years. Precise measurements of the energy spectral variation of Fds will give a conclusion of the energy dependence of Fds.

AB - The CALorimetric Electron Telescope(CALET) mission is proposed to measure galactic electrons and gamma rays on ISS/JEM for three years[1]. In this paper we report the purpose of this project in solar physics and the expected results from precise measurement of electron energy spectrum in the 1-100GeV energy range. The CALET measurement of long-term variations of the energy spectrum will produce a wealth of data to investigate electron propagation in the heliosphere. CALET does not distinguish positive charge from negative one. However, we can evaluate the charge sign dependence of solar modulation using correlation with the neutron monitors, since most particles are negative electrons in this energy range. Further we estimate transport parameters, mainly the energy dependence of diffusion coefficient in the heliosphere. CALET will also have a capability of measuring the short-term variation of around ten Forbush decreases(Fds) for three years. Precise measurements of the energy spectral variation of Fds will give a conclusion of the energy dependence of Fds.

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M3 - Conference contribution

AN - SCOPUS:66849108375

VL - 2

SP - 453

EP - 456

BT - 29th International Cosmic Ray Conference, ICRC 2005

PB - Tata Institute of Fundamental Research

T2 - 29th International Cosmic Ray Conference, ICRC 2005

Y2 - 3 August 2005 through 10 August 2005

ER -

CALET observations of galactic electrons in the heliosphere

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