The Extreme-ultraviolet Imaging Spectrometer (EIS) onboard Solar-B is designed and being developed under international collaboration to execute spectroscopic observations of the dynamical solar upper atmosphere in two extreme-ultraviolet wavelength ranges, 170--210 AA and 250--290 AA. These bands include strong emission lines that are formed at 104.7--107.3 K. A high-cadence spectroscopic observation with EIS is suitable for the studies of coronal heating process and it will reveal dynamical plasma motions in/around solar flares of all sizes. It is of particular importance to specify the key physics of coronal heating process and solar dynamic events through collaborative observations with SOT and XRT on the same spacecraft.
The Solar-B Mission and the Forefront of Solar Physics
- Pub Date:
- December 2004