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Bassett, Bruce A.; Fantaye, Yabebal; Hlozek, Renée; Kotze, Jacques

Fisher matrix preloaded – Fisher4Cast. (English) Zbl 1263.85063

Int. J. Mod. Phys. D 20, No. 13, 2559-2598 (2011).
Summary: The Fisher Matrix is the backbone of modern cosmological forecasting. We describe the Fisher4Cast software: A general-purpose, easy-to-use, Fisher Matrix framework. It is open source, rigorously designed and tested and includes a Graphical User Interface (GUI) with automated LATEX file creation capability and point-and-click Fisher ellipse generation. Fisher4Cast was designed for ease of extension and, although written in Matlab, is easily portable to open-source alternatives such as Octave and Scilab. Here we use Fisher4Cast to present new 3D and 4D visualizations of the forecasting landscape and to investigate the effects of growth and curvature on future cosmological surveys. Early releases have been available at http://www.mathworks.com/matlabcentral/fileexchange/20008 since mid-2008. The current release of the code is Version 2.2 which is described here. For ease of reference a Quick Start guide and the code used to produce the figures in this paper are included, in the hope that it will be useful to the cosmology and wider scientific communities.

MSC:

85A40 Astrophysical cosmology
83F05 Relativistic cosmology
94A17 Measures of information, entropy
83C55 Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.)
85-08 Computational methods for problems pertaining to astronomy and astrophysics

Keywords:

cosmology; Fisher information theory; dark energy; baryon acoustic oscillations

Software:

Fisher4Cast; Scilab; Octave; Matlab; LaTeX
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