Cosmological probes of helium reionization

Abstract

Joint analysis of CMB and large-scale structure at high redshifts provide new and unique windows into unexplored epochs of early structure formation. Here, we demonstrate how cosmic infrared background and high-redshift galaxies can be jointly analysed with CMB to probe the epoch of helium reionization ($2<z<4$) on the light cone using kinetic Sunyaev Zel'dovich tomography. Characterising this epoch has great potential significance for understanding astrophysics of galaxy formation, quasar activity and formation of the super-massive black holes. We find a detection at $8-10\sigma$ can be expected from combinations of data from CCAT-prime, Vera Rubin Observatory and CMB-S4 in the upcoming years.

matches published version

References in corpus (22)

• The diversity of quasars unified by accretion and orientation
• CMB-S4: Forecasting Constraints on Primordial Gravitational Waves
• The first ultraviolet quasar stacked spectrum at z=2.4 from WFC3
• The thermal history of the intergalactic medium down to redshift z=1.5: a new curvature measurement
• The Co-Formation of Spheroids and Quasars Traced in their Clustering
• CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope
• The Tau of Galaxy Clusters
• Fundamental Physics from Future Weak-Lensing Calibrated Sunyaev-Zel'dovich Galaxy Cluster Counts
• The Benefits of CMB Delensing
• Measurement of CIB power spectra over large sky areas from Planck HFI maps
• Cosmology with the moving lens effect
• Probing cosmic birefringence with polarized Sunyaev-Zel'dovich tomography
• Velocity reconstruction with the cosmic microwave background and galaxy surveys
• Primordial trispectrum from kSZ tomography
• Thermal state of the intergalactic medium at $z\sim 2-4$
• Reconstructing large scales at cosmic dawn
• Improving models of the cosmic infrared background using CMB lensing mass maps
• Cosmology from the kinetic polarized Sunyaev Zel'dovich effect
• Quasar UV Luminosity Function at $3.5<z<5.0$ from SDSS Deep Imaging Data
• Uncorrelated Compensated Isocurvature Perturbations from kSZ Tomography
• Subtracting the kinetic Sunyaev-Zeldovich effect from the cosmic microwave background with surveys of large-scale structure
• Probing helium reionization with kinetic Sunyaev Zel'dovich tomography

Cited by in corpus (3)

• Probing light relics through cosmic dawn
• Transverse velocities and matter gradient correlations: a new signal and a new challenge to moving-lens analyses
• Reconstructing patchy helium reionization using the cosmic microwave background and large-scale structure