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http://hdl.handle.net/20.500.12386/29545
Title: | Future constraints on the gravitational slip with the mass profiles of galaxy clusters | Authors: | Pizzuti, Lorenzo Saltas, Ippocratis D. Casas, Santiago Amendola, Luca BIVIANO, ANDREA |
Issue Date: | 2019 | Journal: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Number: | 486 | Issue: | 1 | First Page: | 596 | Abstract: | The gravitational slip parameter, defined as the ratio between the two scalar potentials appearing in the linearly perturbed Friedmann-Lemaitre-Robertson Walker metric, is an important discriminator between large classes of gravity theories at cosmological and astrophysical scales. In this work we use a combination of simulated information of galaxy cluster mass profiles, inferred by strong + weak lensing analyses and by the study of the dynamics of the cluster member galaxies, to reconstruct the gravitational slip parameter η and predict the accuracy with which it can be constrained with current and future galaxy cluster surveys. Performing a full-likelihood statistical analysis, we show that galaxy cluster observations can constrain η down to per cent level already with a few tens of clusters. We discuss the significance of possible systematics, and show that the clusters masses and numbers of galaxy members used to reconstruct the dynamics mass profile have a mild effect on the predicted constraints. | URI: | http://hdl.handle.net/20.500.12386/29545 | URL: | https://academic.oup.com/mnras/article/486/1/596/5398550 | ISSN: | 0035-8711 | DOI: | 10.1093/mnras/stz825 | Bibcode ADS: | 2019MNRAS.486..596P | Fulltext: | open |
Appears in Collections: | 1.01 Articoli in rivista |
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File | Description | Size | Format | |
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pizzuti19.pdf | pdf editoriale | 1.78 MB | Adobe PDF | View/Open |
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