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Fig. 2

image

Evolution of the effective baryonic fraction (fb: Eq. (11)) with dark-matter halo mass and redshift. We use the Okamoto et al. (2008) prescription with a reionisation redshift zreion = 9 (see text for more details). The vertical grey line indicates our mass resolution limit (20 dm-particules). At this mass resolution and for a redshift of about 2, the effective baryonic fraction fb applied to the accretion flux is .

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