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hi_class: Horndeski in the Cosmic Linear Anisotropy Solving System
Stockholm University, Nordic Institute for Theoretical Physics (Nordita). University of California at Berkeley, USA; Ruprecht-Karls-Universität Heidelberg, Germany.
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Number of Authors: 5
2017 (English)In: Journal of Cosmology and Astroparticle Physics, ISSN 1475-7516, E-ISSN 1475-7516, no 8, 019Article in journal (Refereed) Published
Abstract [en]

We present the public version of hi_class (www.hiclass-code.net), an extension of the Boltzmann code CLASS to a broad ensemble of modifications to general relativity. In particular, hi_class can calculate predictions for models based on Horndeski's theory, which is the most general scalar-tensor theory described by second-order equations of motion and encompasses any perfect-fluid dark energy, quintessence, Brans-Dicke, f(R) and covariant Galileon models. hi_class has been thoroughly tested and can be readily used to understand the impact of alternative theories of gravity on linear structure formation as well as for cosmological parameter extraction.

Place, publisher, year, edition, pages
2017. no 8, 019
Keyword [en]
modified gravity, dark energy theory, cosmological parameters from CMBR, cosmological parameters from LSS
National Category
Physical Sciences
Identifiers
URN: urn:nbn:se:su:diva-147951DOI: 10.1088/1475-7516/2017/08/019ISI: 000408311900019OAI: oai:DiVA.org:su-147951DiVA: diva2:1149866
Available from: 2017-10-17 Created: 2017-10-17 Last updated: 2017-11-29Bibliographically approved

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Zumalacárregui, Miguel
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