ICosmo: an Interactive Cosmology Package

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SUMMARY

iCosmo is an interactive software package designed for cosmological calculations specifically focused on the low redshift universe. It computes distance measures, the matter power spectrum, and growth factors for any cosmological parameters, and supports observables for weak gravitational lensing, baryon acoustic oscillations, and supernovae. The package, written in IDL, allows for batch mode calculations and integrates Fisher matrices for cosmological forecasts. iCosmo is freely available with extensive documentation and serves as a valuable resource for both teaching and research in cosmology.

PREREQUISITES
  • Familiarity with cosmological parameters and their significance
  • Understanding of weak gravitational lensing and baryon acoustic oscillations
  • Basic knowledge of IDL programming language
  • Experience with Fisher matrix analysis in cosmology
NEXT STEPS
  • Explore the iCosmo package documentation for detailed usage instructions
  • Learn about the implementation of Fisher matrices in cosmological forecasts
  • Investigate the role of baryon acoustic oscillations in cosmological studies
  • Study the principles of weak gravitational lensing and its applications
USEFUL FOR

Astronomers, cosmologists, and researchers in astrophysics looking to perform interactive cosmological calculations and enhance their understanding of low redshift universe phenomena.

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arXiv:0810.1285 [ps, pdf, other]
Title: iCosmo: an Interactive Cosmology Package
Authors: Alexandre Refregier (1), Adam Amara (2), Thomas Kitching (3), Anais Rassat (1) ((1) CEA Saclay, (2) ETH Zurich, (3) Univ. Oxford)
Comments: 5 Latex pages including 2 tables and 4 figures. Submitted to Astronomy and Astrophysics. Public code and further resources available at this http URL
Subjects: Astrophysics (astro-ph)
iCosmo is a software package to perform interactive cosmological calculations for the low redshift universe. The computation of distance measures, the matter power spectrum, and the growth factor is supported for any values of the cosmological parameters. It also performs the computation of observables for several cosmological probes such as weak gravitational lensing, baryon acoustic oscillations and supernovae. The associated errors for these observables can be derived for customised surveys, or for pre-set values corresponding to current or planned instruments. The code also allows for the calculation of cosmological forecasts with Fisher matrices which can be manipulated to combine different surveys and cosmological probes. The code is written in the IDL language and thus benefits from the convenient interactive features and scientific library available in this language. iCosmo can also be used as an engine to perform cosmological calculations in batch mode, and forms a convenient evolutive platform for the development of further cosmological modules. With its extensive documentation, it may also serve as a useful resource for teaching and for newcomers in the field of cosmology. The iCosmo package is described with various examples and command sequences. The code is freely available with documentation at this http URL, along with an interactive web interface and is part of the Initiative for Cosmology, a common archive for cosmological resources.
 
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