Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001a%26a...365..248k&link_type=abstract
Astronomy and Astrophysics, v.365, p.248-251 (2001)
Astronomy and Astrophysics
Astrophysics
4
Atomic Data, Atomic Processes, Line Formation
Scientific paper
2s-photoionization of magnesium is analyzed for incident energies ranging up to three times the 2s threshold (96.6 eV). The 3s shake processes amount to almost 30% of single photoionization. The shake-up cross section 3s -> 4s exceeds 14% of the single one, and the conjugate shake-up probability plays an important role in the energy range up to three times the 2s threshold. The 2s2p63s2 Auger and Coster-Kronig rates are calculated, and the 2s22p53s 1Po exit is found to be favoured (80% of the total decay), giving rise to the line MgIII 231.73 Å.
da Silva E. P.
Kochur A. G.
Petrini D.
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