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: http://www.stsci.edu/stsci/meetings/jamb98/node45.html
Дата изменения: Tue Mar 24 21:18:12 1998 Дата индексирования: Sat Dec 22 11:08:57 2007 Кодировка: |
I have stellar model atmosphere program which is available to anyone at STScI. The program employs a complete linearization technique to achieve convergence for plane parallel, LTE model atmospheres from which the emergent flux is computed and spectral line strengths can be evaluated. The input parameters are effective temperature, chemical composition, and surface gravity. Both convective (mixing length approximation) and radiative energy transport are accomodated. This program can be used to model stars over a very large region of the HR diagram, from cool white dwarf stars (Teff=5000K) to main sequence stars of spectral type A, and perhaps brown dwarfs. A non-LTE version is under consideration, as is a model appropriate for extended atmosphers.