Kinetic Sunyaev-Zel'dovich tomography with line-intensity mapping

Abstract

The kinetic Sunyaev-Zel'dovich (kSZ) effect is a secondary cosmic microwave background (CMB) anisotropy induced by the scattering of CMB photons off intervening electrons. Through cross-correlations with tracers of large-scale structure, the kSZ effect can be used to reconstruct the 3-dimensional radial-velocity field, a technique known as kSZ tomography. We explore the cross-correlation between the CMB and line-intensity fluctuations to retrieve the late-time kSZ signal across a wide redshift range. We focus on the CII emission line, and predict the signal-to-noise ratio of the kSZ tomography signal between redshifts $z=1-5$ for upcoming experiments. We show that while instruments currently under construction may reach a low-significance detection of kSZ tomography, next-generation experiments will achieve greater sensitivity, with a detection significance of $\mathcal{O}(10^2-10^3)$. Due to sample-variance cancellation, the cross-correlation between the reconstructed velocity field from kSZ tomography and intensity fluctuations can improve measurements of %the scale-dependent bias contributions from new physics to the power spectrum at large scales. To illustrate this improvement, we consider models of the early Universe that induce primordial local-type non-gaussianity and correlated compensated isocurvature perturbations. We show that with CMB-S4 and an AtLAST-like survey, the uncertainty on $f_{\mathrm{NL}}$ and $A_{\mathrm{CIP}}$ can be reduced by a factor of $\sim 3$, achieving $\sigma (f_{\mathrm{NL}})\lesssim 1$. We further show that probing both low and high redshifts is crucial to break the degeneracy between the two parameters.

arXiv comment13 pages, 5 figures

References in corpus (49)

• A Universal Density Profile from Hierarchical Clustering
• Halo Models of Large Scale Structure
• The Simons Observatory: Science goals and forecasts
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• The imprints of primordial non-gaussianities on large-scale structure: scale dependent bias and abundance of virialized objects
• Measuring primordial non-gaussianity without cosmic variance
• CMB-S4 Science Book, First Edition
• An accurate physical model for halo concentrations
• Evidence of Galaxy Cluster Motions with the Kinematic Sunyaev-Zel'dovich Effect
• A measurement of secondary cosmic microwave background anisotropies from the 2500-square-degree SPT-SZ survey
• Reionization Revisited: Secondary CMB Anisotropies and Polarization
• The Atacama Cosmology Telescope: Combined kinematic and thermal Sunyaev-Zel'dovich measurements from BOSS CMASS and LOWZ halos
• The Kinematic Sunyaev-Zel'dovich Effect with Projected Fields: A Novel Probe of the Baryon Distribution with Planck, WMAP, and WISE Data
• Detection of the kinematic Sunyaev-Zel'dovich effect with DES Year 1 and SPT
• Confirmation of the Copernican principle at Gpc radial scale and above from the kinetic Sunyaev Zel'dovich effect power spectrum
• Detection of the pairwise kinematic Sunyaev-Zel'dovich effect with BOSS DR11 and the Atacama Cosmology Telescope
• Constraining local non-Gaussianities with kSZ tomography
• Dark Energy Constraints from Galaxy Cluster Peculiar Velocities
• The Tau of Galaxy Clusters
• Constraints on gravity and dark energy from the pairwise kinematic Sunyaev-Zeldovich effect
• Physical conditions in the gas phases of the giant HII region LMC-N11 unveiled by Herschel - I. Diffuse [CII] and [OIII] emission in LMC-N11B
• A User's Guide to Extracting Cosmological Information from Line-Intensity Maps
• Reconstruction of the remote dipole and quadrupole fields from the kinetic Sunyaev Zel'dovich and polarized Sunyaev Zel'dovich effects
• Correlation properties of the kinematic Sunyaev-Zel'dovich effect and implications for Dark Energy
• Constraints on massive neutrinos from the pairwise kinematic Sunyaev-Zel'dovich effect
• Rapid Separable Analysis of Higher Order Correlators in Large Scale Structure
• Planck intermediate results. XXXVII. Evidence of unbound gas from the kinetic Sunyaev-Zeldovich effect
• The Atacama Large Aperture Submillimetre Telescope (AtLAST)
• The kinetic SZ tomography with spectroscopic redshift surveys
• Deprojecting Sunyaev-Zeldovich statistics
• The effect of Dark Matter and Dark Energy interactions on the peculiar velocity field and the kinetic Sunyaev-Zel'dovich effect
• Sensitivity of the Prime-Cam Instrument on the CCAT-prime Telescope
• Herschel Observations of Far-Infrared Cooling Lines in intermediate Redshift (Ultra)-luminous Infrared Galaxies
• Probing correlated compensated isocurvature perturbations using scale-dependent galaxy bias
• Baryon-CDM isocurvature galaxy bias with IllustrisTNG
• Kinetic Sunyaev-Zeldovich effect in modified gravity
• Finding the Missing Baryons Using CMB as a Backlight
• Measuring patchy reionisation with kSZ${}^2$-21 cm correlations
• The 21 cm-kSZ-kSZ Bispectrum during the Epoch of Reionization
• The Impact of Nonlinear Structure Formation on the Power Spectrum of Transverse Momentum Fluctuations and the Kinetic Sunyaev-Zel'dovich Effect
• Extracting the late-time kinetic Sunyaev-Zel'dovich effect
• The Cross-correlation of KSZ Effect and 21 cm Intensity Mapping with Tidal Reconstruction
• Prime-Cam: A first-light instrument for the CCAT-prime telescope
• Testing the tensor-vector-scalar Theory with the latest cosmological observations
• KSZ tomography and the bispectrum
• Compensated Isocurvature Perturbations in the Galaxy Power Spectrum
• The kinetic Sunyaev-Zel'dovitch effect as a dark energy probe
• The Atacama Large Aperture Submillimeter Telescope (AtLAST)
• Detectability of the ${\tau }_{es}$-21cm cross-correlation: a tomographic probe of patchy reionization

Cited by in corpus (17)

• Line-Intensity Mapping: Theory Review
• Projected-Field Kinetic Sunyaev-Zel'dovich Cross-Correlations: Halo Model and Forecasts
• Retrieving cosmological information from small-scale CMB foregrounds II. The kinetic Sunyaev Zel'dovich effect
• Velocity reconstruction with the cosmic microwave background and galaxy surveys
• Ultra-light axions and the kinetic Sunyaev-Zel'dovich Effect
• Reconstructing large scales at cosmic dawn
• A multi-tracer empirically-driven approach to line-intensity mapping lightcones
• Uncorrelated Compensated Isocurvature Perturbations from kSZ Tomography
• Pairwise kSZ signal extraction efficacy and optical depth estimation
• Towards Accurate Modeling of Line-Intensity Mapping One-Point Statistics: Including Extended Profiles
• Magnetic Fields from Compensated Isocurvature Perturbations
• Towards a multi-tracer neutrino mass measurement with line-intensity mapping
• kSZ Pairwise Velocity Reconstruction with Machine Learning
• Removal of interloper contamination to line-intensity maps using correlations with ancillary tracers of the large-scale structure
• Direct correlation of line intensity mapping and CMB lensing from evolution along the lightcone
• Cluster optical depth and pairwise velocity estimation using machine learning
• Modified Cosmology or Modified Galaxy Astrophysics is Driving the z>6 JWST Results? CMB Experiments can discover the Origin in the Near Future