The SUMER spectral atlas of solar coronal features

Details The SUMER spectral atlas of solar coronal features The SUMER spectral atlas of solar coronal features

Dec 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004a%26a...427.1045c&link_type=abstract

Astronomy and Astrophysics, v.427, p.1045-1054 (2004)

Astronomy and Astrophysics

Astrophysics

40

Sun: Uv Radiation, Sun: Corona, Line: Identification, Atlases

Scientific paper

We present a spectral atlas of the solar corona in the far-ultraviolet (FUV) and extreme ultraviolet (EUV) wavelength range. The atlas is based on observations obtained between 670 Å and 1609 Å in first order of diffraction and between 465 and 670 Å in second order with the SUMER (Solar Ultraviolet Measurements of Emitted Radiation) spectrograph on SOHO (Solar and Heliospheric Observatory). This paper complements the SUMER Spectral Atlas of Solar Disk Features, also published in A&A. The atlas contains off-limb spectra of the corona above a coronal hole, a quiet region, the active corona, and a flare. We provide wavelengths of all detected lines and identification, if available; 311 out of 507 coronal emission lines could be identified or reconfirmed, including several new identifications. Brief descriptions of the data reduction and calibration procedures are given. The spectral radiances are determined with a relative uncertainty of 0.15 to 0.40 (1σ) and the wavelength scale is accurate to typically ≃30 mÅ. The atlas is also available in a machine readable format.
Table \ref{tab3} and Fig. \ref{fig3} are only available in electronic form at http://www.edpsciences.org

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