• ICHIMOTO KIYOSHI (National Astronomical Observatory of Japan) ;
  • TEAM THE SOLAR-B (National Astronomical Observatory of Japan)
  • Published : 2005.06.01


The Solar-B is the third Japanese spacecraft dedicated for solar physics to be launched in summer of 2006. The spacecraft carries a coordinated set of optical, EUV and X-ray instruments that will allow a systematic study of the interaction between the Sun's magnetic field and its high temperature, ionized atmosphere. The Solar Optical Telescope (SOT) consists of a 50cm aperture diffraction limited Gregorian telescope and a focal plane package, and provides quantitative measurements of full vector magnetic fields at the photosphere with spatial resolution of 0.2-0.3 arcsec in a condition free from terrestrial atmospheric seeing. The X-ray telescope (XRT) images the high temperature (0.5 to 10 MK) corona with improved spatial resolution of approximately 1 arcsec. The Extreme Ultraviolet Imaging Spectrometer (EIS) aims to determine velocity fields and other plasma parameters in the corona and the transition region. The Solar-B telescopes, as a whole, will enable us to explore the origins of the outer solar atmosphere, the corona, and the coupling between the fine magnetic structure at the photosphere and the dynamic processes occurring in the corona. The mission instruments (SOT/EIS/XRT) are joint effort of Japan (JAXA/NAO), the United States (NASA), and the United Kingdom (PPARC). An overview of the spacecraft and its mission instruments are presented.


space telescope;solar:corona;magnetograph;instrument


  1. Hara, H., 2004, Solar-B EUV Imaging Spectrometer(EIS), ASP Conference Series, 325, 27
  2. Ichimoto, K., Tsuneta, S., Suematsu, Y., Shimizu, T., Otsubo, M., Kato, Y., Noguchi, M., Nakagiri, M., Tamura, T., Katsukawa, Y., Kubo, M., Sakamoto, Y., Hara, H., Minesugi, K., Ohnishi, A., Saito, H., Kawaguchi, N., Matsushita, T., Nakaoji, T., Nagae, K., Sakamoto, J., Hasuyama, Y., Mikami, I., Miyawaki, K., Sakurai, Y., Kaido, N., Horiuchi, T., Shimada, S., Inoue, T., Mitsutake, M., Yoshida, N., Takahara, O., Takeyama, N., Suzuki, M., & Abe, S., 2004, The Solar Optical Telescope onboard the Solar-B, SPIE conference series, 5487, 1142돐热?⨀?잖⨀磭?⨀줏덐裭?⨀젏ꠏ鳬隑胭閙造듪뎼駪떐ꐻ鳬隑胭閙造듪뎼駪떐ꐻ鳬隑胭閙造ꃪ늽볭閙郬认㯭閜釫貀駪떐⃬麄臫뎑곭閙郬认㬀䵡瑳畩Ⱐ䠮㭍畲慫慭椬⁈⸻乡歡湩獨椬⁈⸻味畤愬⁙⸀
  3. Kano, R., Hara, H., Shimojo, M., Tsuneta, S., Sakao, T., Matsuzaki, K., Kosugi, T., Golub, L., Deluca, E. E., Bookbinder, J.,A., Cheimet, P., Owens, J.,K., & Hill, L.,D., 2004, Solar-B X-Ray Telescope, ASP conference series, 325, 15
  4. Sakao, T., Kano, R., Hara, H., Matsuzaki, K., Shimojo, M., Tsuneta, S., Kosugi, T., Shibasaki, K., Kumagai, K. Sawa, M., Tamura, S., Iwamura, T., Nakano, M., Du, Z., Hiyoshi, K., Horii, M., Golub, L., Bookbinder, J. A., Cheimets, P. C., Hill, L. D. & Owens, J. K., 2004, Focal plane CCD camera for the X-Ray Telescope (XRT) aboard SOLAR-B, SPIE conference series, 5487, 1189
  5. Shimizu, T., Nagata, S., Edwards, C., Tarbell, T., Kashiwagi, Y., Kodeki, K., Ito, O. , Miyagawa, H. , Nagase, M., Inoue, S., Kaneko, K., Sakamoto, Y., Ichimoto, K., Tsuneta, S., Miki, S., Endo, M., Tabata, M., Nakaoji, T., Matsuzaki, K., Kobayashi, K., Otsubo, M., Suematsu, Y., Kumagai, K., Noguchi, M., Tamura, T., & Nakagiri, M., 2004, Image stabilization system on SOLAR-B Solar Optical Telescope, SPIE, 5487, 1199
  6. Shimizu, T., 2004, Solar-B Solar Optical Telescope, ASP conference series, 325, 3

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