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[ascl:0202.001] PopRatio: A program to calculate atomic level populations in astrophysical plasmas

PopRatio is a Fortran 90 code to calculate atomic level populations in astrophysical plasmas. The program solves the equations of statistical equilibrium considering all possible bound-bound processes: spontaneous, collisional or radiation induced (the later either directly or by fluorescence). There is no limit on the number of levels or in the number of processes that may be taken into account. The program may find a wide range of applicability in astronomical problems, such as interpreting fine-structure absorption lines or collisionally excited emission lines and also in calculating the cooling rates due to collisional excitation.

Code site:
http://www.ignacioalex.com/popratio/ http://ned.ipac.caltech.edu/level5/Silva/TOC.html
Appears in:
http://adsabs.harvard.edu/abs/2001CoPhC.136..319S
Bibcode:
2002ascl.soft02001S

ascl:0202.001
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