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- W2923274158 endingPage "5765" @default.
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- W2923274158 abstract "Abstract We forecast the linear bias for Hα-emitting galaxies at high redshift. To simulate a Euclid-like and a WFIRST-like survey, we place galaxies into a large-volume dark matter halo lightcone by sampling a library of luminosity-dependent halo occupation distributions (HODs), which is constructed using a physically motivated galaxy formation model. We calibrate the dust attenuation in the lightcones such that they are able to reproduce the Hα luminosity function or the Hα cumulative number counts. The angle-averaged galaxy correlation function is computed for each survey in redshift slices of width Δ z = 0.2. In each redshift bin the linear bias can be fitted with a single, scale-independent value that increases with increasing redshift. Fitting for the evolution of linear bias with redshift, we find that our Euclid-like and WFIRST-like surveys are both consistent within error with the relation b(z) = 0.7z + 0.7. Our bias forecasts are consistent with bias measurements from the HiZELS survey. We find that the Euclid-like and WFIRST-like surveys yield linear biases that are broadly consistent within error, most likely due to the HOD for the WFIRST-like survey having a steeper power-law slope towards larger halo masses." @default.
- W2923274158 created "2019-04-01" @default.
- W2923274158 creator A5012749486 @default.
- W2923274158 creator A5013241352 @default.
- W2923274158 creator A5013863061 @default.
- W2923274158 creator A5054218499 @default.
- W2923274158 creator A5066329793 @default.
- W2923274158 date "2019-05-06" @default.
- W2923274158 modified "2023-10-15" @default.
- W2923274158 title "Linear bias forecasts for emission line cosmological surveys" @default.
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