Cosmological exploitation of cosmic void statistics
New numerical tools in the CosmoBolognaLib to extract cosmological constraints from the void size function⋆
1 SISSA – International School for Advanced Studies, via Bonomea 265, 34136 Trieste, Italy
2 Dipartimento di Fisica e Astronomia – Università di Bologna, viale Berti Pichat 6/2, 40127 Bologna, Italy
3 INAF – Osservatorio Astronomico di Bologna, via Ranzani 1, 40127 Bologna, Italy
4 INFN – Sezione di Bologna, viale Berti Pichat 6/2, 40127 Bologna, Italy
Received: 22 March 2017
Accepted: 12 September 2017
Context. We present new numerical tools to analyse cosmic void catalogues, implemented inside the CosmoBolognaLib, a large set of open source C++/Python numerical libraries.
Aims. The CosmoBolognaLib provides a common numerical environment for cosmological calculations. This work extends these libraries by adding new algorithms for cosmological analyses of cosmic voids, covering the existing gap between theory and observations.
Methods. We implemented new methods to model the size function of cosmic voids, in both observed and simulated samples of dark matter and biased tracers. Moreover, we provide new numerical tools to construct unambiguous void catalogues. The latter are designed to be independent of the void finder, in order to allow a high versatility in comparing independent results.
Results. The implemented open source software is available at the GitHub repository of the CosmoBolognaLib. We also provide a full doxygen documentation and some example codes that explain how to use these libraries.
Key words: large-scale structure of Universe / cosmological parameters / cosmology: theory / cosmology: observations / catalogs / surveys
The implemented open source software is available at https://github.com/federicomarulli/CosmoBolognaLib
© ESO, 2017