Astronomy and Astrophysics – Astrophysics
Scientific paper
Aug 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999a%26a...348..659p&link_type=abstract
Astronomy and Astrophysics, v.348, p.659-661 (1999)
Astronomy and Astrophysics
Astrophysics
2
Atomic Data, Atomic Processes, Line: Formation
Scientific paper
We evaluate the shake up process in the K-photoionisation of atomic carbon, i.e. the 2s -> 2p and 3s, and 2p -> 3p shake up excitations, within the photon energy range 25 to 45 Ry. As in the atomic boron case, the 2s -> 3s excitation is still relatively strong and due to configuration interaction effects dominates the 2p subshell excitation to 3p. The conjugate shake up 2s -> 2p is 3% near 45 Ry, decreasing slowly as expected. This infers that the shake off process would lead mostly to terms related to the configurations 1s2s2p(2) with a percentage of about 20%.
da Silva E. P.
Petrini D.
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