Statistics – Computation
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985apj...298..651c&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 298, Nov. 15, 1985, p. 651-659. Research supported by the Smithsonian Insti
Statistics
Computation
154
Astronomical Models, Ion Production Rates, Propagation Velocity, Radiative Heat Transfer, Shock Spectra, Shock Wave Propagation, Computational Astrophysics, Enthalpy, Helium Ions, Hydrogen Ions, Line Spectra
Scientific paper
Radiation shock waves are shown to be organizable into families within which the spectra are very similar. A high-velocity shock into neutral material is spectrally similar to a somewhat slower shock in fully ionized material. The similarities should allow the identification of the family to which an observed spectrum belongs, while spectral details permit subsequent identification of the separate values of shock velocity and preionization. By calculating shock spectra for the various families at constant recombination zone density, rather than constant preshock density, it is possible to separate the effects of 'velocity' (by which is meant postionization enthalpy per atom) from those of 'density' (by which is meant the degree of collisional deexcitation in the optical lines).
Cox Donald P.
Raymond John C.
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