Rigorous and Approximate Scaling Laws for the Photo-Ionization Cross-Section of Hydrogenic Ions in Magnetic Fields

Details Rigorous and Approximate Scaling Laws for the Photo-Ionization Cross-Section of Hydrogenic Ions in Magnetic Fields Rigorous and Approximate Scaling Laws for the Photo-Ionization Cross-Section of Hydrogenic Ions in Magnetic Fields

Mar 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982mnras.198..769w&link_type=abstract

Monthly Notices of the Royal Astronomical Society, Vol. 198, P. 769, 1982

Astronomy and Astrophysics

Astronomy

5

Scientific paper

A general form of the nuclear charge (Z) scaling law for the photoionization cross-section in magnetic fields is derived. it turns out that the cross-section for Z> 1 is scaled down to that for Z = 1 taken at electron and photon energies which are no longer connected by the conservation of energy. By specializing to the dipole approximation a simpler scaling law is obtained. The possibility of experimental tests is briefly discussed. For a magnetic field of 4.7 × 1012G and photon energies up to 50 keV the range of validity of the dipole approximation is determined quantitatively.

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