Measuring the growth of structure by matching dark matter haloes to galaxies with VIPERS and SDSS
| Autor: | Granett, Benjamin R., Favole, Ginevra, Montero-Dorta, Antonio D., Branchini, Enzo, Guzzo, Luigi, de la Torre, Sylvain |
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| Rok vydání: | 2019 |
| Předmět: | |
| Zdroj: | MNRAS Volume 489, Issue 1, October 2019, Pages 653-662 |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1093/mnras/stz2152 |
| Popis: | We test the history of structure formation from redshift 1 to today by matching galaxies from VIPERS and SDSS with dark matter haloes in the MultiDark SMDPL N-body simulation. We first show that the standard subhalo abundance matching (SHAM) recipe implemented with MultiDark characterizes the clustering of galaxies well both at redshift 0 for SDSS and at redshift 1 for VIPERS. This is an important validation of the SHAM model at high redshift. We then remap the simulation timesteps to test alternative growth histories and infer the growth index $\gamma=0.6\pm0.3$. This analysis demonstrates the power of using N-body simulations to forward model galaxy surveys for cosmological inference. Comment: Matches published version. Data and code to reproduce the analysis are available at https://github.com/darklight-cosmology/vipers-sham |
| Databáze: | arXiv |
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