[P-EM10] Frontiers in solar physics

[PEM10-09] Current Status of the Solar-C_EUVST Mission

*Shinsuke Imada¹, Toshifumi Shimizu², Tomoko Kawate², Shin Toriumi², Yukio Katsukawa³, Masahito Kubo³, Hirohisa Hara³, Yoshinori Suematsu³, Kiyoshi Ichimoto⁴, Ayumi Asai⁴, Kyoko Watanabe⁶, Takaaki Yokoyama⁵, Akiko Tei², Harry Warren⁷, David Long⁸, Louise Harra⁸, Luca Teriaca⁹, Sarah Matthews⁸, Vincenzo Andrette¹⁰, Frederic Auchere¹¹ (1.Institute for Space-Earth Environmental Research, Nagoya University, 2.ISAS, 3.NAOJ, 4.Kyoto University, 5.University of Tokyo, 6.NDA, 7.NRL, 8.UCL, 9.MPS, 10.Istituto Nazionale di Astrofisica,, 11.IAS)

Solar-C_EUVST (EUV High-Throughput Spectroscopic Telescope) is designed to comprehensively understand the energy and mass transfer from the solar surface to the solar corona and interplanetary space, and to investigate the elementary processes that take place universally in cosmic plasmas. As a fundamental step towards answering how the plasma universe is created and evolves, and how the Sun influences the Earth and other planets in our solar system, the proposed mission is designed to comprehensively understand how mass and energy are transferred throughout the solar atmosphere. Understanding the solar atmosphere, which connects to the heliosphere via radiation, the solar wind and coronal mass ejections, and energetic particles is pivotal for establishing the conditions for life and habitability in the solar system.

The two primary science objectives for Solar-C_EUVST are : I) Understand how fundamental processes lead to the formation of the solar atmosphere and the solar wind, II) Understand how the solar atmosphere becomes unstable, releasing the energy that drives solar flares and eruptions. Solar-C_EUVST will, A) seamlessly observe all the temperature regimes of the solar atmosphere from the chromosphere to the corona at the same time, B) resolve elemental structures of the solar atmosphere with high spatial resolution and cadence to track their evolution, and C) obtain spectroscopic information on the dynamics of elementary processes taking place in the solar atmosphere.

In this talk, we will first discuss the science target of the Solar-C_EUVST, and then discuss the current status of the Solar-C_EUVST mission.