Japanese Next Solar Mission: SOLAR-C

Details Japanese Next Solar Mission: SOLAR-C Japanese Next Solar Mission: SOLAR-C

Sep 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008espm...12..6.5s&link_type=abstract

"12th European Solar Physics Meeting, Freiburg, Germany, held September, 8-12, 2008. Online at http://espm.kis.uni-freiburg.de/,

Physics

Scientific paper

We present introductory overview on the next Japanese solar mission, SOLAR-C, which has been envisaged following the success of Hinode (SOLAR-B) mission. Two plans, Plan A and Plan B, are under extensive study from science objectives as well as engineering point of view. Plan A aims to perform out-of-ecliptic observations for investigating, with helioseismic approach, internal structure and dynamo mechanisms of the Sun. It also explores polar regions where fast solar wind is believed to be originated. The baseline orbit for Plan A is a circular orbit of 1 AU distance from the Sun, with its inclination at around, or greater than, 40 degrees. Plan B pursues small-scale plasma processes and structures in the solar atmosphere which attract growing interest, following Hinode discoveries, for understanding fully dynamism and magnetic nature of the atmosphere. With Plan B, high-angular-resolution investigation of the entire solar atmosphere (from the photosphere to the corona, including their interface layers, i.e., chromosphere and transition region) is to be performed with enhanced spectroscopic and spectro-polarimetric capability as compared with Hinode, together with enhanced sensitivity towards ultra-violet wavelengths. There has been wide and evolving support for the SOLAR-C mission not only from solar physics community but also from related research areas in Japan. We request SOLAR-C to be launched in mid. 2010s.
Following the highly-successful achievements of international collaboration for Yohkoh and Hinode, we strongly hope the SOLAR-C mission be realized under extensive collaboration with European and U.S. partners. Japanese SOLAR-C working group was officially approved by ISAS/JAXA in December 2007 for mission studies and promoting international collaboration. It is expected that a single mission plan is to be proposed after one year of investigation on Plan A and Plan B.

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