Open Access

Fig. 16.

image

Predicted [CII] power spectrum at z = 6. Three cases are shown, corresponding to three scenarios of SFRD at high z (see Lagache et al. 2018): high SFRD (dark blue), low SFRD (light blue), and the geometrical mean of the two (red). Only points with S/N >  1 are shown. S/Ns were computed considering A = 1.4 square degrees, tsurvey = 840 h, which corresponds to a total observation time of 1200 hours taking the overheads into account, and sensitivities as estimated in Sect. 4. The [CII] power spectra were derived from the modelling of CIB power spectra (Serra et al. 2016), using a conversion from SFR to [CII] that conservatively underestimates the [CII] luminosity by a factor of 6 at z = 5 compared to recent semi-analytical models (e.g. Lagache et al. 2018) or ALMA ALPINE measurements (Schaerer et al. 2020). Our estimates of [CII] power spectra are thus likely to be underestimated. The predicted [CII] power spectra from Yue & Ferrara 2019, using the local SFR-[CII] relation (black line) and Chung et al. 2020 (dashed black line) are also shown.

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.