SDSS DR7 [OII] ELG MultiDark mocks
If you use these mocks please reference Favole et al. (2017).
| We study the galaxy clustering dependence on the [OII] emission line luminosity in the SDSS DR7 Main galaxy sample at mean redshift z=0.1. We select volume-limited samples of galaxies with different [OII] luminosity thresholds and measure their projected, monopole and quadrupole two-point correlation functions. We model these observations using the 1 Gpc/h MultiDark Planck cosmological simulation and generate light-cones with the SUGAR code (Rodriguez-Torres et al. 2016). To interpret our results, we adopt a modified (Sub)Halo Abundance Matching scheme, accounting for the stellar mass incompleteness of the emission line galaxies. The satellite fraction constitutes an extra parameter in this model and allows to optimise the clustering fit on both small and intermediate scales, with no need of any velocity bias correction. We find that, in the local Universe, the [OII] luminosity correlates with all the clustering statistics explored and with the galaxy bias. This latter quantity correlates more strongly with the SDSS r-band magnitude than [OII] luminosity. In conclusion, we propose a straightforward method to produce reliable clustering models, entirely built on the simulation products, which provides robust predictions of the typical ELG host halo masses and satellite fraction values. All details can be found in Favole et al. (2017). When access the mocks directory, |
| in data/ you can find the SDSS DR7 [OII] emission line galaxy catalogues, the corresponding randoms, and the resulting two-point correlation functions. |
| In mocks/ you can find the MultiDark Planck mocks for the ELG samples above, built using the SUGAR code. Each sub-directory contains a README explaining its content. |