- ID:
- ivo://CDS.VizieR/J/A+AS/126/281
- Title:
- Solar disk spectrum (660-1175A)
- Short Name:
- J/A+AS/126/281
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- The near-limb quiet-Sun spectrum recorded on January 25, 1996 near the solar North pole is presented in tabular form and in graphical form. Table 1 - the line list - lists all lines found in the spectrum providing absolute peak intensities, measured and literature wavelengths, identification, and classification of the transition. Fig. 4 is a display the composite spectrum. The most prominent lines are labelled. In this figure intensities are given in instrumental units and logarithmic scale.
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- ID:
- ivo://CDS.VizieR/J/A+A/581/A26
- Title:
- Solar Lyman irradiance line profiles
- Short Name:
- J/A+A/581/A26
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- Accurate hydrogen spectra emitted by the entire solar disc in the Ly-{alpha} and Ly-{beta} lines are valuable for deriving the distribution and the behaviour of atomic hydrogen in the heliosphere, for understanding the UV emissions of solar type stars better, and finally for estimating the solar energy input that mainly initiates the chemical processes occurring in the planetary and cometary outer atmospheres. In this paper we want to accurately determine the irradiance solar spectral profiles of Ly-{alpha} and Ly-{beta} and their evolution through the solar activity cycle 23. The SUMER/SOHO spectrometer is a slit spectrometer that is only able to analyse a small part of the solar image. Consequently, we used the scattered light properties of the telescope to obtain average spectra over the solar disc. Then the profile is calibrated using the SOLSTICE/UARS and TIMED/SEE irradiance spectra.
- ID:
- ivo://CDS.VizieR/J/A+A/375/591
- Title:
- SUMER Spectral Atlas of Solar Disk Features
- Short Name:
- J/A+A/375/591
- Date:
- 21 Oct 2021
- Publisher:
- CDS
- Description:
- List of spectral lines in the wavelength range from 668{AA} to 1611{AA} identified in SUMER (Solar Ultraviolet Measurements of Emitted Radiation, spectrograph on the spacecraft SOHO) spectra of the average quiet Sun (QS), a coronal hole (CH) and a sunspot on disk (SS). Spectral lines observed in second order of diffraction which are also given here, extend the lower wavelength limit to below 500{AA}. For each entry we give the observed wavelengths in angstrom, the identification, the transition, the peak of spectral radiance, L^peak^, in mW/(sr*m^2^*{AA}) (incl. background), and a cross-reference to other line lists available in the literature (cf., Sect. 5.1). For second-order lines radiance entries are generally not provided, since the background separation in both orders of diffraction is a non-trivial task, which can not be automated. Only a few radiance values of strong second-order lines with negligible first-order contribution are given, which are marked by an asterisk (*).
