Extracting HI Astrophysics from Interferometric Intensity Mapping

Abstract

We present a new halo model of neutral hydrogen (HI) calibrated to galaxy formation simulations at redshifts $z\sim 0.1$ and $z\sim 1.0$ that we employ to investigate the constraining power of interferometric HI intensity mapping on HI astrophysics. We demonstrate that constraints on the small-scale HI power spectrum can break the degeneracy between the HI density ${\Omega }_{\mathrm{HI}}$ and the HI bias $b_{\mathrm{HI}}$. For $z\sim 0.1$, we forecast that an accurate measurement of ${\Omega }_{\mathrm{HI}}$ up to 6% level precision and the large-scale HI bias $b_{\mathrm{HI}}^0$ up to 1% level precision can be achieved using Square Kilometre Array (SKA) pathfinder data from MeerKAT and Australian SKA Pathfinder (ASKAP). We also propose a new description of the HI shot noise in the halo model framework in which a scatter of the relation between the HI mass of galaxies and their host halo mass is taken into account. Furthermore, given the number density of HI galaxies above a certain HI mass threshold, future surveys will also be able to constrain the HI mass function using only the HI shot noise. This will lead to constraints at the 10% level using the standard Schechter function. This technique will potentially provide a new way of measuring the HI Mass Function, independent from existing methods. We predict that the SKA will be able to further improve the low-redshift constraints by a factor of 3, as well as pioneering measurements of HI astrophysics at higher redshifts.

19 pages, 11 figures and 6 tables. Updated to match the published version in MNRAS. For the computational tool used in this paper see arXiv:2009.14066 and https://halomod.readthedocs.io/en/latest/examples/extension.html

References in corpus (93)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Astropy: A Community Python Package for Astronomy
• emcee: The MCMC Hammer
• The NumPy array: a structure for efficient numerical computation
• First Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Determination of Cosmological Parameters
• The Astropy Project: Building an inclusive, open-science project and status of the v2.0 core package
• Efficient Computation of CMB anisotropies in closed FRW models
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• Large scale bias and the peak background split
• Populating a cluster of galaxies - I. Results at z=0
• Halo Models of Large Scale Structure
• The Cosmic Evolution Survey (COSMOS) -- Overview
• Toward a halo mass function for precision cosmology: the limits of universality
• Ellipsoidal collapse and an improved model for the number and spatial distribution of dark matter haloes
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Cosmology at Low Frequencies: The 21 cm Transition and the High-Redshift Universe
• The Completed SDSS-IV extended Baryon Oscillation Spectroscopic Survey: Cosmological Implications from two Decades of Spectroscopic Surveys at the Apache Point observatory
• The Large Scale Bias of Dark Matter Halos: Numerical Calibration and Model Tests
• Resolving Cosmic Structure Formation with the Millennium-II Simulation
• The Arecibo Legacy Fast ALFA Survey: I. Science Goals, Survey Design and Strategy
• The Luminosity and Color Dependence of the Galaxy Correlation Function
• Galaxy Clustering in the Completed SDSS Redshift Survey: The Dependence on Color and Luminosity
• 21-cm Tomography of the Intergalactic Medium at High Redshift
• Cosmological Non-Linearities as an Effective Fluid
• The Effective Field Theory of Cosmological Large Scale Structures
• The Role of Pressure in GMC Formation II: The H_2 - Pressure Relation
• The HIPASS Catalogue - I. Data Presentation
• Concentration, Spin and Shape of Dark Matter Haloes: Scatter and the Dependence on Mass and Environment
• Multi-Phase Galaxy Formation: High Velocity Clouds and the Missing Baryon Problem
• Cosmological Parameter Estimation Using 21 cm Radiation from the Epoch of Reionization
• The HIPASS catalogue: Omega_HI and environmental effects on the HI mass function of galaxies
• Assembly bias in the clustering of dark matter haloes
• Baryon Acoustic Oscillation Intensity Mapping as a Test of Dark Energy
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies
• Measurement of 21 cm brightness fluctuations at z ~ 0.8 in cross-correlation
• Late-time cosmology with 21cm intensity mapping experiments
• Quantitative Constraints on the Reionization History from the IGM Damping Wing Signature in Two Quasars at z > 7
• Cosmology with Phase 1 of the Square Kilometre Array; Red Book 2018: Technical specifications and performance forecasts
• The Arecibo Legacy Fast ALFA Survey: X. The HI Mass Function and Omega_HI From the 40% ALFALFA Survey
• Determination of z~0.8 neutral hydrogen fluctuations using the 21 cm intensity mapping auto-correlation
• First Cosmological Results using Type Ia Supernovae from the Dark Energy Survey: Measurement of the Hubble Constant
• Evolution of the Mass Function of Dark Matter Haloes
• Canadian Hydrogen Intensity Mapping Experiment (CHIME) Pathfinder
• The Atacama Cosmology Telescope: Two-Season ACTPol Spectra and Parameters
• Ingredients for 21cm intensity mapping
• Galaxy assembly, stellar feedback and metal enrichment: the view from the GAEA model
• Mass Function Predictions Beyond LCDM
• Intensity Mapping of the [CII] Fine Structure Line during the Epoch of Reionization
• Lack of clustering in low-redshift 21-cm intensity maps cross-correlated with 2dF galaxy densities
• The ALFALFA HI mass function: A dichotomy in the low-mass slope and a locally suppressed 'knee' mass
• Line-Intensity Mapping: 2017 Status Report
• Predictions for ASKAP Neutral Hydrogen Surveys
• Neutral hydrogen surveys for high redshift galaxy clusters and proto-clusters
• Detection of HI in distant galaxies using spectral stacking
• Light cone effect on the reionization 21-cm power spectrum
• Galaxy formation in the Planck Millennium: the atomic hydrogen content of dark matter halos
• The effect of foreground subtraction on cosmological measurements from Intensity Mapping
• Elemental Abundances in Milky Way-like Galaxies from a Hierarchical Galaxy Formation Model
• Neutral atomic hydrogen (HI) gas evolution in field galaxies at z ~ 0.1 and 0.2
• Forecasts on the Dark Energy and Primordial Non-Gaussianity Observations with the Tianlai Cylinder Array
• H${}_2$-based star formation laws in hierarchical models of galaxy formation
• A halo model for cosmological neutral hydrogen: abundances and clustering
• The HI Content of the Universe over the Past 10 Gyrs
• Neutral hydrogen (HI) gas content of galaxies at $z\approx 0.32$
• The power spectrum and bispectrum of SDSS DR11 BOSS galaxies II: cosmological interpretation
• Modeling the neutral hydrogen distribution in the post-reionization Universe: intensity mapping
• The MeerKAT International GHz Tiered Extragalactic Exploration (MIGHTEE) Survey
• Light cone effect on the reionization 21-cm signal II: Evolution, anisotropies and observational implications
• The Statistical Properties of Neutral Gas at z<1.65 from UV Measurements of Damped Lyman Alpha Systems
• Extracting HI cosmological signal with Generalized Needlet Internal Linear Combination
• The atomic Hydrogen content of the post-reionization Universe
• The 21cm Power Spectrum After Reionization
• Determining the HI content of galaxies via intensity mapping cross-correlations
• Constraining a halo model for cosmological neutral hydrogen
• Impact of Foregrounds on HI Intensity Mapping Cross-Correlations with Optical Surveys
• Impact of Simulated 1/f Noise for HI Intensity Mapping Experiments
• HI-selected Galaxies in Hierarchical Models of Galaxy Formation and Evolution
• Forecast for FAST: from Galaxies Survey to Intensity Mapping
• First Results from COPSS: The CO Power Spectrum Survey
• The bias of DLAs at z ~ 2.3: contraining stellar feedback in shallow potential wells
• Galaxy power spectrum in redshift space: combining perturbation theory with the halo model
• The HI content of dark matter halos at $z\approx 0$ from ALFALFA
• BINGO: a single dish approach to 21cm intensity mapping
• Intensity mapping cross-correlations II: HI halo models including shot noise
• The Effective Halo Model: Creating a Physical and Accurate Model of the Matter Power Spectrum and Cluster Counts
• The physical drivers of the atomic hydrogen-halo mass relation
• Impact of astrophysics on cosmology forecasts for 21 cm surveys
• Cross-correlating 21 cm and galaxy surveys: implications for cosmology and astrophysics
• Beyond $\Lambda$CDM with HI intensity mapping: robustness of cosmological constraints in the presence of astrophysics
• Dependence of inclusive jet production on the anti-$k_{\mathrm{T}}$ distance parameter in pp collisions at $\sqrt{s}=$ 13 TeV
• The Breakdown Scale of HI Bias Linearity
• The cosmic atomic hydrogen mass density as a function of mass and galaxy hierarchy from spectral stacking
• HI intensity mapping with the MIGHTEE survey: power spectrum estimates

Cited by in corpus (15)

• Multi-tracer intensity mapping: Cross-correlations, Line noise & Decorrelation
• TheHaloMod: An online calculator for the halo model
• A direct detection of neutral hydrogen intensity mapping on Mpc scales at $z\approx 0.32$ and $z\approx 0.44$
• Detecting the HI Power Spectrum in the Post-Reionization Universe with SKA-Low
• HI intensity mapping with the MIGHTEE survey: power spectrum estimates
• HI intensity mapping with MeerKAT: forecast for delay power spectrum measurement using interferometer mode
• Synergizing 21 cm and sub-millimetre surveys during reionization: new empirical insights
• Interferometric HI intensity mapping: perturbation theory predictions and foreground removal effects
• Emission-line Stacking of 21cm Intensity Maps with MeerKLASS: Inference Pipeline and Application to the L-band Deep-field Data
• Unveiling the Universe with Emerging Cosmological Probes
• Towards Optimal Foreground Mitigation Strategies for Interferometric HI Intensity Mapping in the Low-Redshift Universe
• 21 cm Intensity Mapping with the DSA-2000
• HI Intensity Mapping with the MIGHTEE Survey: First Results of the HI Power Spectrum
• HI Intensity Mapping cross-correlation with thermal SZ fluctuations: forecasted cosmological parameters estimation for FAST and Planck
• Semi-empirical constraints on the HI mass function of star-forming galaxies and ${\Omega }_{\mathrm{HI}}$ at $z\sim 0.37$ from interferometric surveys