STERNE
LTE line-blanketed model atmospheres for hot stars
Plane-parallel line-blanketed model atmospheres for hot stars, 8000<Teff<40 000 K, in local thermal, radiative and hydrostatic equilibrium (LTE).
The code handles extremely H-deficient mixtures and composition stratification.
Bound-free opacities use Opacity Project and IRON project photo-ionisation cross sections. Line opacities are treated by opacity sampling. Older options remain available.User Guide (incomplete)
History
Authors: C.S. Jeffery, N.T. Behara, P.M. Harrison, U. Heber, D. Schönberner, 1974-2020
Sterne.4 (2020) Input script rationalised for first time in 40 years. See new command descriptions. Abundances of all elements can be specified.
Sterne.3 (c. 2007) Opacity Project photo-ionization cross-sections and Opacity Sampling methods introduced. Stratitfied atmospheres are possible. Radiative levitation included in a non-public version (1.5D).
Sterne.2 (c.1994) Code adapted for use on multiple platforms with modern compilers. Wrapper programmes for making i/o simpler and running larger numbers of models. Various improvements to internal structure. CCP7 Guide (1994)
Sterne.1 (c. 1985) Original code developed in Berlin and Kiel, provided to CCP7 in the mid 1980's, and implemented on the Cray-1 by Tony Lynas-Gray. Atomic bound-free opacities are treated as in ATLAS, supplemented by additional tables for C, C+, C++, C+++, N, N+, N++, N+++ (Peach 1970). Line opacities are treated using odf's as in ATLAS6. These remain as options with the current version
This page is maintained by:
Simon Jeffery (simon.jeffery@armagh.ac.uk)
Last modified: 23-Oct-2020