Observations of the Sun obtained by SUMER on SOHO
Abstract
Solar observations will be presented which make use of the high spectral and spatial resolution capabilities of the Solar Ultraviolet Measurements of Emitted Radiation spectrograph (SUMER) on the SOlar and Heliospheric Observatory (SOHO) of ESA and NASA. The spatial resolution of the instrument is limited by the pixel size along the slit (1 pixel corresponds to ~1 '') and is approximately 1''.2 in a raster mode employing the narrowest slit (with a width of 0''.3). The spectral resolution element is ~22 mÅ in the second order of the diffraction grating (~400 Å to 800 Å) and ~44 mÅ in first order (~800 Å to 1600 Å). Radiance spectra of structures and events will be discussed including features of the chromospheric network, bright points in coronal holes, active region loops, spicules, and macrospicules.
- Publication:
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Astronomische Gesellschaft Abstract Series
- Pub Date:
- 1999
- Bibcode:
- 1999AGAb...15....9W
- Keywords:
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- Sun: UV Spectra