Photoionisation of the B(+) (1Se) ground state

Details Photoionisation of the B(+) (1Se) ground state Photoionisation of the B(+) (1Se) ground state

Mar 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989a%26a...211..485t&link_type=abstract

Astronomy and Astrophysics (ISSN 0004-6361), vol. 211, no. 2, March 1989, p. 485-494.

Astronomy and Astrophysics

Astrophysics

6

Boron, Ground State, Ionization Cross Sections, Photoionization, Autoionization, Black Body Radiation, Oscillator Strengths, Photoabsorption, Positive Ions, Rydberg Series

Scientific paper

Accurate cross-sections for the photoionization of the B(+) (2s2 1Se) ground state have been calculated, using close-coupling expansions of the initial and final states on the five lower states (2s, 2p, 3s, 3p, 3d) of the residual B(2+) ion. The cross-sections vary rapidly with photon energy in the interval between the first two ionization thresholds (493 A and 398 A), because of two series of autoionizing Rydberg resonances 2pns, 2pnd 1P0. At higher energies, the resonance structures converging toward the 3s, 3p, 3d thresholds are relatively less important, and the decreasing background agrees reasonably with earlier work ignoring resonances. The total and partial cross-sections are given in graphical and tabular forms.

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