Forecasts indicate 10-sigma detection for squeezed triangles and 100-sigma for combined shapes in the 21cm-galaxy cross-bispectrum with 100 hours of SKA-Mid interferometric observations on scales 0.2 to 0.9 per Mpc.
23 Single-dish IM with the SKAO Cunnington & Wang et al
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MeerKLASS reports successful single-dish HI intensity mapping detections that validate the technique for SKAO cosmology surveys.
Forecasts indicate SKA-Mid AA4 will measure the HI power spectrum at high significance from z~1 to z~3 near k~1 Mpc^{-1}, extending MeerKAT results to constrain HI galaxy properties and galaxy evolution.
Pilot FAST HD² survey reports 339 new HI detections in 10 deg² with 0.45 mJy rms, high DESI optical matching rates, and gas fraction relations consistent with ALFALFA, DINGO, and xGASS.
citing papers explorer
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Probing the large-scale structure with 21cm-galaxy cross-bispectrum: Estimates from simulations and forecasts for upcoming cosmological surveys
Forecasts indicate 10-sigma detection for squeezed triangles and 100-sigma for combined shapes in the 21cm-galaxy cross-bispectrum with 100 hours of SKA-Mid interferometric observations on scales 0.2 to 0.9 per Mpc.
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Single-dish HI Intensity Mapping with the SKAO: Precursor Progress with MeerKAT's Large Area Synoptic Survey (MeerKLASS)
MeerKLASS reports successful single-dish HI intensity mapping detections that validate the technique for SKAO cosmology surveys.
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Interferometric HI Intensity Mapping of the Late Time Universe with SKA-Mid
Forecasts indicate SKA-Mid AA4 will measure the HI power spectrum at high significance from z~1 to z~3 near k~1 Mpc^{-1}, extending MeerKAT results to constrain HI galaxy properties and galaxy evolution.
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The FAST Hundred-Deg$^2$ HI Deep (HD$^2$) Survey: Early Results from the Pilot Survey
Pilot FAST HD² survey reports 339 new HI detections in 10 deg² with 0.45 mJy rms, high DESI optical matching rates, and gas fraction relations consistent with ALFALFA, DINGO, and xGASS.