Year: 2017
Type: article
Abstract: 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.
Authors: Miguel Zumalacárregui, Emilio Bellini, Ignacy Sawicki, Julien Lesgourgues, Pedro G. Ferreira
Institutions: Lawrence Berkeley National Laboratory, Stockholm University, Heidelberg University, KTH Royal Institute of Technology, University of California, Berkeley, University of Oxford, Institut de Ciències del Cosmos, Universitat de Barcelona, FZU - Institute of Physics of the Czech Academy of Sciences, RWTH Aachen University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2396522858