Computer Science – Databases
Scientific paper
Jan 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aipc..386..411l&link_type=abstract
The 13th international conference on spectral line shapes. AIP Conference Proceedings, Volume 386, pp. 411-418 (1997).
Computer Science
Databases
Intensities And Shapes Of Atomic Spectral Lines, Intensities And Shapes Of Molecular Spectral Lines And Bands, Stellar Atmospheres, Radiative Transfer, Opacity And Line Formation, Ultraviolet
Scientific paper
The spectral region below 2000 Å is crowded of lines from the most important elements in the universe and the x-ray and EUV emission of astrophysical plasmas is an extremely powerful tool to investigate temperature and density models of celestial sources. In the last two decades a number of space missions has been devoted to investigate the X-ray and EUV sky, and, even before, space born spectrograph, measured detailed spectra of the solar corona. Two high spectral resolution instruments, CDS and SUMER, on the SOHO mission, are producing a lot of high quality spectra of the solar corona between 150 and 1600 Å and high resolution observations are planned for the near future also from stars and galaxies. To properly exploit the huge amount of information supplied by the Observations and to plan new observations, the most updated sets of atomic data are necessary. Models of neutral atoms and ions, details of the most important atomic processes, (rates of collision and radiative ionizations and excitation, radiative decays, recombinations) are being collected in extended databases, to be accessed by the scientific community. A brief description is given of some of them that are in the way of upgrading.
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