SI III emission line strengths in low density plasmas.
DOI: 10.1093/mnras/209.1.1P
Bibcode: 1984MNRAS.209P...1D
Dufton, P. L.; Keenan, F. P.; Kingston, A. E.
United Kingdom
Abstract
Theoretical emissivity ratios appropriate to homogeneous optically thin plasmas are presented for the Si III lines at 1883 and 1892 Å. These lines are a useful density diagnostic for Ne ≥ 104cm-3, their use being illustrated for the planetary nebulae NGC 7662 and V1016 Cygni.
1984
•
Monthly Notices of the Royal Astronomical Society
IUE
20