Abstract
The SOLAR-A spacecraft is to be launched by the Institute of Space and Astronautical Science, Japan (ISAS) in August, 1991. As a successor of HINOTORI, this mission is dedicated principally to the study of solar flares, especially of high-energy phenomena observed in the X- and gamma-ray ranges. The SOLAR-A will be the unique space solar observatory during the current activity maximum period (1989–1992). With a coordinated set of instruments including hard X-ray and soft X-ray imaging telescopes as well as spectrometers with advanced capabilities, it will reveal many new aspects of flares and help better understand their physics, supporting international collaborations with ground-based observatories as well as theoretical investigations. An overview of this mission, including the satellite, its scientific instruments, and its operation, is given in this paper. Also the scientific objectives are briefly discussed.
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References
Antonucci, E.: 1983, Solar Phys. 86, 67.
Culhane, J. L., Hiei, E., Doschek, G., Cruise, A. M., Ogawara, Y., Uchida, Y., Bentley, R. D., Brown, C. M., Lang, J., Watanabe, T., and 17 co-authors: 1991, Solar Phys. 136, 89 (this issue).
Forrest, D. J. and Chupp, E. L.: 1983, Nature 305, 291.
Kondo, I.: 1983, in Y. Tanaka et al. (eds.), Proceedings of Hinotori Symposium on Solar Flares, ISAS, Tokyo, p. 3.
Kosugi, T., Makishima, K., Murakami, T., Sakao, T., Dotani, T., Inda, M., Kai, K., Masuda, S., Nakajima, H., Ogawara, Y., Sawa, M., and Shibasaki, K.: 1991, Solar Phys. 136, 17 (this issue).
Kundu, M. R. and Woodgate, B. (eds.): 1986, Energetic Phenomena on the Sun, The Solar Maximum Mission Flare Workshop Proceedings, NASA-CP 2439.
Morrison, M., Lemen, J. R., Acton, L. W., Bentley, R. D., Kosugi, T., Tsuneta, S., Ogawara, Y., and Watanabe, T.: 1991, Solar Phys. 136, 105 (this issue).
Nakajima, H., Kosugi, T., Kai, K., and Enome, S.: 1983, Nature 305, 292.
Tanaka, K.: 1987, Publ. Astron. Soc. Japan 39, 1.
Tanaka, K., Nitta, N., Akita, K., and Watanabe, T.: 1983, Solar Phys. 86, 91.
Tsuneta, S., Nitta, N., Ohki, K., Takakura, T., Tanaka, K., Makishima, K., Murakami, T., Oda, M., and Ogawara, Y.: 1984, Astrophys. J. 284, 827.
Tsuneta, S., Acton, L., Bruner, M., Lemen, J., Brown, W., Caravalho, R., Catura, R., Freeland, S., Jurcevich, B., Morrison, M., Ogawara, Y., Hirayama, T., and Owens, J.: 1991, Solar Phys. 136, 37 (this issue).
Uchida, Y. and Shibata, K.: 1988, Solar Phys. 116, 291.
Yoshimori, M., Okudaira, K., Hirasima, Y., Igarashi, T., Akasaka, M., Takai, Y., Morimoto, K., Watanabe, T., Ohki, K., Nishimura, J., Yamagami, T., Ogawara, Y., and Kondo, I.: 1991, Solar Phys. 136, 69 (this issue).
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After the launch the name of SOLAR-A has been changed to YOHKOH.
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Ogawara, Y., Takano, T., Kato, T. et al. The SOLAR-A mission: An overview. Sol Phys 136, 1–16 (1991). https://doi.org/10.1007/BF00151692
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DOI: https://doi.org/10.1007/BF00151692