Probing Cosmic Reionization and Molecular Gas Growth with TIME

Abstract

Line intensity mapping (LIM) provides a unique and powerful means to probe cosmic structures by measuring the aggregate line emission from all galaxies across redshift. The method is complementary to conventional galaxy redshift surveys that are object-based and demand exquisite point-source sensitivity. The Tomographic Ionized-carbon Mapping Experiment (TIME) will measure the star formation rate (SFR) during cosmic reionization by observing the redshifted [CII] 158$\mu$m line ($6\lesssim z\lesssim 9$) in the LIM regime. TIME will simultaneously study the abundance of molecular gas during the era of peak star formation by observing the rotational CO lines emitted by galaxies at $0.5\lesssim z\lesssim 2$. We present the modeling framework that predicts the constraining power of TIME on a number of observables, including the line luminosity function, and the auto- and cross-correlation power spectra, including synergies with external galaxy tracers. Based on an optimized survey strategy and fiducial model parameters informed by existing observations, we forecast constraints on physical quantities relevant to reionization and galaxy evolution, such as the escape fraction of ionizing photons during reionization, the faint-end slope of the galaxy luminosity function at high redshift, and the cosmic molecular gas density at cosmic noon. We discuss how these constraints can advance our understanding of cosmological galaxy evolution at the two distinct cosmic epochs for TIME, starting in 2021, and how they could be improved in future phases of the experiment.

arXiv comment30 pages, 18 figures, accepted for publication in ApJ

References in corpus (145)

• emcee: The MCMC Hammer
• The NumPy array: a structure for efficient numerical computation
• Planck 2015 results. XIII. Cosmological parameters
• The CO-to-H2 Conversion Factor
• Halo Models of Large Scale Structure
• Toward a halo mass function for precision cosmology: the limits of universality
• On the normalisation of the cosmic star formation history
• Planck 2018 results. I. Overview and the cosmological legacy of Planck
• Constraining the Evolution of the Ionizing Background and the Epoch of Reionization with z ~ 6 Quasars II: A Sample of 19 Quasars
• In the Beginning: The First Sources of Light and the Reionization of the Universe
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• The COSMOS2015 Catalog: Exploring the 1<z<6 Universe with half a million galaxies
• Dust Absorption And The Ultraviolet Luminosity Density At z \approx 3 As Calibrated By Local Starburst Galaxies
• Cool Gas in High Redshift Galaxies
• A Comprehensive Analysis of Uncertainties Affecting the Stellar Mass - Halo Mass Relation for 0<z<4
• The Evolution of the Stellar Mass Functions of Star-Forming and Quiescent Galaxies to z = 4 from the COSMOS/UltraVISTA Survey
• PHIBSS: molecular gas content and scaling relations in z~1-3 normal star forming galaxies
• Cosmic Reionization and Early Star-Forming Galaxies: A Joint Analysis of New Constraints from Planck and Hubble Space Telescope
• Dusty Star-Forming Galaxies at High Redshift
• The Evolution of the Galaxy Rest-Frame Ultraviolet Luminosity Function Over the First Two Billion Years
• Hydrogen Epoch of Reionization Array (HERA)
• The stellar mass assembly of galaxies from z=0 to z=4. Analysis of a sample selected in the rest-frame near-infrared with Spitzer
• A Remarkably Luminous Galaxy at z=11.1 Measured with Hubble Space Telescope Grism Spectroscopy
• Model-independent evidence in favor of an end to reionization by z~6
• The Abundance of Star-Forming Galaxies in the Redshift Range 8.5 to 12: New Results from the 2012 Hubble Ultra Deep Field Campaign
• The First Galaxies
• The Interstellar Medium In Galaxies Seen A Billion Years After The Big Bang
• The applicability of FIR fine-structure lines as Star Formation Rate tracers over wide ranges of metallicities and galaxy types
• The Herschel PEP/HerMES Luminosity Function. I: Probing the Evolution of PACS selected Galaxies to z~4
• Reionization after Planck: The Derived Growth of the Cosmic Ionizing Emissivity now matches the Growth of the Galaxy UV Luminosity Density
• UV-Continuum Slopes of >4000 z~4-8 Galaxies from the HUDF/XDF, HUDF09, ERS, CANDELS-South, and CANDELS-North Fields
• Planck intermediate results. XLVI. Reduction of large-scale systematic effects in HFI polarization maps and estimation of the reionization optical depth
• The Birth of a Galaxy - III. Propelling reionisation with the faintest galaxies
• The Dearth of z~10 Galaxies in all HST Legacy Fields -- The Rapid Evolution of the Galaxy Population in the First 500 Myr
• Baryon Acoustic Oscillation Intensity Mapping as a Test of Dark Energy
• The Universe is Reionizing at z~7: Bayesian Inference of the IGM Neutral Fraction Using Ly$\alpha$ Emission from Galaxies
• The Most Luminous z~9-10 Galaxy Candidates yet Found: The Luminosity Function, Cosmic Star-Formation Rate, and the First Mass Density Estimate at 500 Myr
• Quantitative Constraints on the Reionization History from the IGM Damping Wing Signature in Two Quasars at z > 7
• Concordance models of reionization: implications for faint galaxies and escape fraction evolution
• Rapid Reionization by the Oligarchs: The Case for Massive, UV-Bright, Star-Forming Galaxies with High Escape Fractions
• The Star Formation Rate Density and Dust Attenuation Evolution over 12 Gyr with the VVDS Surveys
• The Global 21 Centimeter Background from High Redshifts
• The Galaxy UV Luminosity Function Before the Epoch of Reionization
• Determination of z~0.8 neutral hydrogen fluctuations using the 21 cm intensity mapping auto-correlation
• Studying Reionization with Ly-alpha Emitters
• The z~6 Luminosity Function Fainter than -15 mag from the Hubble Frontier Fields: The Impact of Magnification Uncertainties
• The ALPINE-ALMA [CII] Survey: data processing, catalogs, and statistical source properties
• Keeping the Universe ionised: Photo-heating and the clumping factor of the high-redshift intergalactic medium
• Inferences on the Timeline of Reionization at z~8 From the KMOS Lens-Amplified Spectroscopic Survey
• Systematic Identification of LAEs for Visible Exploration and Reionization Research Using Subaru HSC (SILVERRUSH). I. Program Strategy and Clustering Properties of ~2,000 Lya Emitters at z=6-7 over the 0.3-0.5 Gpc${}^2$ Survey Area
• The Thermal Memory of Reionization History
• The [CII] 158 micron line emission in high-redshift galaxies
• Evolution of the atomic and molecular gas content of galaxies
• [CII] 158 $\mu$m Emission as a Star Formation Tracer
• Cold gas properties of the Herschel Reference Survey. II. Molecular and total gas scaling relations
• Satellite Kinematics II: The Halo Mass-Luminosity Relation of Central Galaxies in SDSS
• Constraints on the Star Formation Efficiency of Galaxies During the Epoch of Reionization
• The impact of clustering and angular resolution on far-infrared and millimeter continuum observations
• Intensity Mapping of the [CII] Fine Structure Line during the Epoch of Reionization
• Semi-analytic forecasts for JWST - I. UV luminosity functions at z = 4 - 10
• Constraining the unexplored period between reionization and the dark ages with observations of the global 21 cm signal
• Star formation relations and CO SLEDs across the J-ladder and redshift
• The ALPINE-ALMA [CII] survey. Little to no evolution in the [CII]-SFR relation over the last 13 Gyr
• What does the first highly-redshifted 21-cm detection tell us about early galaxies?
• The ALMA Spectroscopic Survey in the HUDF: CO luminosity functions and the molecular gas content of galaxies through cosmic history
• COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe
• CO Luminosity Functions For FIR and B-band Selected Galaxies and the First Estimate for Omega_{HI+H2}
• The reliability of [CII] as a star formation rate indicator
• Star formation and the interstellar medium in z>6 UV-luminous Lyman-break galaxies
• The Global 21-cm Signal in the Context of the High-z Galaxy Luminosity Function
• Effective destruction of CO by cosmic rays: implications for tracing H${}_2$ gas in the Universe
• The Evolution of the Baryons Associated with Galaxies Averaged over Cosmic Time and Space
• L'CO/LFIR Relations with CO Rotational Ladders of Galaxies Across the Herschel SPIRE Archive
• Measuring the 3D Clustering of Undetected Galaxies Through Cross Correlation of their Cumulative Flux Fluctuations from Multiple Spectral Lines
• A Theory for the Excitation of CO in Star Forming Galaxies
• Towards a complete treatment of the cosmological recombination problem
• ALMA spectroscopic survey in the Hubble Ultra Deep Field: CO luminosity functions and the evolution of the cosmic density of molecular gas
• A Survey of Atomic Carbon [C I] in High-redshift Main-Sequence Galaxies
• Secondary ionization and heating by fast electrons
• A physical model for [CII] line emission from galaxies
• The Lyman-alpha luminosity function at z=5.7-6.6 and the steep drop of the faint end: implications for reionization
• The ALMA Spectroscopic Survey in the HUDF: Multi-band constraints on line luminosity functions and the cosmic density of molecular gas
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: Search for [CII] line and dust emission in 6<z<8 galaxies
• COPSS II: The Molecular Gas Content of Ten Million Cubic Megaparsecs at $z\sim 3$
• Modelling [CI] emission from turbulent molecular clouds
• Improved Models for Cosmic Infrared Background Anisotropies: New Constraints on the IR Galaxy Population
• ALMA [CII] detection of a redshift 7 lensed galaxy behind RXJ1347.1-1145
• Molecular gas in low-metallicity starburst galaxies: Scaling relations and the CO-to-H${}_2$ conversion factor
• The History and Morphology of Helium Reionization
• Resolved UV and [CII] structures of luminous galaxies within the epoch of reionisation
• On Removing Interloper Contamination from Intensity Mapping Power Spectrum Measurements
• A Minimalist Feedback-Regulated Model for Galaxy Formation During the Epoch of Reionization
• Evolution of cosmic star formation in the SCUBA-2 Cosmology Legacy Survey
• Escape of ionizing radiation from high redshift dwarf galaxies: role of AGN feedback
• A wide field-of-view low-resolution spectrometer at APEX: instrument design and science forecast
• The DEEP2 Galaxy Redshift Survey: Clustering Dependence on Galaxy Stellar Mass and Star Formation Rate at z~1
• High-J CO SLEDs in nearby infrared bright galaxies observed by Herschel-PACS
• Neutral carbon and CO in 76 (U)LIRGs and starburst galaxy centers A method to determine molecular gas properties in luminous galaxies
• Erasing the Milky Way: new cleaning technique applied to GBT intensity mapping data
• The X_CO conversion factor from galactic multiphase ISM simulations
• Spectral Line De-confusion in an Intensity Mapping Survey
• An Intensity Mapping Detection of Aggregate CO Line Emission at 3 mm
• Hydrodynamic Response of the Intergalactic Medium to Reionization
• Neutral Carbon Emission in luminous infrared galaxies The \CI\ Lines as Total Molecular Gas Tracers
• Signatures of reionization on Lyman alpha emitters
• Search for CII Emission on Cosmological Scales at Redshift Z~2.6
• Dissecting the high-z interstellar medium through intensity mapping cross-correlations
• Constraining the CO intensity mapping power spectrum at intermediate redshifts
• Predictions and sensitivity forecasts for reionization-era [C II] line intensity mapping
• On the contribution of fluorescence to Ly$\alpha$ halos (LAHs) around star forming galaxies
• A Foreground Masking Strategy for [CII] Intensity Mapping Experiments Using Galaxies Selected by Stellar Mass and Redshift
• Determining the HI content of galaxies via intensity mapping cross-correlations
• Plateau de Bure High-z Blue-Sequence Survey 2 (PHIBSS2): Search for Secondary Sources, CO Luminosity Functions in the Field, and the Evolution of Molecular Gas Density through Cosmic Time
• A Self-consistent Framework for Multiline Modeling in Line Intensity Mapping Experiments
• Insights from probability distribution functions of intensity maps
• Cosmic Reionization After Planck and Before JWST: An Analytic Approach
• First light demonstration of the integrated superconducting spectrometer
• Planck's Dusty GEMS. VII. Atomic carbon and molecular gas in dusty starburst galaxies at z=2 to 4
• Small-scale Intensity Mapping: Extended Ly$\alpha$, H$\alpha$ and Continuum emission as a Probe of Halo Star Formation in High-redshift Galaxies
• On the faint-end of the galaxy luminosity function in the Epoch of Reionization: updated constraints from the HST Frontier Fields
• Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys
• Phase-Space Spectral Line De-confusion in Intensity Mapping
• Probing the Intergalactic Medium with Ly$\alpha$ and 21 cm Fluctuations
• The ALPINE-ALMA [C II] Survey: [C II]158micron Emission Line Luminosity Functions at $z\sim 4-6$
• Forecasting [C II] line-intensity mapping measurements between the end of reionization and the epoch of galaxy assembly
• Studying high-z galaxies with [CII] intensity mapping
• Studies of Millimeter-Wave Atmospheric Noise Above Mauna Kea
• A Flexible Analytic Model of Cosmic Variance in the First Billion Years
• Full-Array Noise Performance of Deployment-Grade SuperSpec mm-wave On-Chip Spectrometers
• ALMA Deep Field in SSA22: Blindly Detected CO Emitters and [CII] Emitter Candidates
• Intensity Mapping in the Presence of Foregrounds and Correlated Continuum Emission
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: implications for spectral line intensity mapping at millimeter wavelengths and CMB spectral distortions
• Measuring the EoR Power Spectrum Without Measuring the EoR Power Spectrum
• Small-scale Intensity Mapping: Extended Halos as a Probe of the Ionizing Escape Fraction and Faint Galaxy Populations during Reionization
• Blind millimeter line emitter search using ALMA data toward gravitational lensing clusters
• Clustering at high redshift: The connection between Lyman Alpha emitters and Lyman break galaxies
• Understanding the redshift evolution of the luminosity functions of Lyman-alpha emitters
• The ALMA Spectroscopic Survey in the HUDF: A Search for [CII] Emitters at $6\le z\le 8$
• Deep learning for intensity mapping observations: Component extraction
• The ALMA Spectroscopic Survey in the HUDF: Constraining cumulative CO emission at $1\lesssim z\lesssim 4$ with power spectrum analysis of ASPECS LP data from 84 to 115 GHz
• Biases and Cosmic Variance in Molecular Gas Abundance Measurements
• A minimal empirical model for the cosmic far-infrared background anisotropies
• Optimizing future experiments of cosmic far-infrared background: a principal component approach
• Impact of radio sources and cosmic infrared background on thermal Sunyaev-Zel'dovich - gravitational lensing cross correlation
• On the star formation efficiency in high redshift Lyman-α emitters

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• CCAT-prime Collaboration: Science Goals and Forecasts with Prime-Cam on the Fred Young Submillimeter Telescope
• Line-Intensity Mapping: Theory Review
• The early Universe was dust-rich and extremely hot
• [CII] line intensity mapping the epoch of reionization with the Prime-Cam on FYST
• An Intensity Mapping Constraint on the CO-Galaxy Cross Power Spectrum at Redshift ~ 3
• Future Constraints on the Reionization History and the Ionizing Sources from Gamma-ray Burst Afterglows
• A model of spectral line broadening in signal forecasts for line-intensity mapping experiments
• LIMFAST. II. Line Intensity Mapping as a Probe of High-Redshift Galaxy Formation
• LIMFAST. I. A Semi-Numerical Tool for Line Intensity Mapping
• Probing Population III Initial Mass Functions with He II/H$\alpha$ Intensity Mapping
• Revisiting the [C II]${}_{158\mu \text{m}}$ line-intensity mapping power spectrum from the EoR using non-uniform line-luminosity scatter
• On estimating the cosmic molecular gas density from CO Line Intensity Mapping observations
• Forecasts and Statistical Insights for Line Intensity Mapping Cross-Correlations: A Case Study with 21cm x [CII]
• A multi-tracer empirically-driven approach to line-intensity mapping lightcones
• CII and HI 21-cm line intensity mapping from the EoR: Impact of the light-cone effect on auto and cross-power spectra
• Intensity Mapping without Cosmic Variance
• SIMPLE: Simple Intensity Map Producer for Line Emission
• Characteristic Functions for Cosmological Cross-Correlations
• Towards Accurate Modeling of Line-Intensity Mapping One-Point Statistics: Including Extended Profiles
• Bayesian Multi-line Intensity Mapping
• On the contributions of extragalactic CO emission lines to ground-based CMB observations
• Boosting Line Intensity Map Signal-to-Noise with the Ly-$\alpha$ Forest Cross-Correlation
• Probing the Epoch of Reionization using synergies of line intensity mapping
• Leveraging cross-correlations and linear covariance-based filtering for line-intensity map reconstructions at linear scales
• Three-Dimensional Stacking as a Line Intensity Mapping Statistic
• Towards a multi-tracer neutrino mass measurement with line-intensity mapping
• Removal of interloper contamination to line-intensity maps using correlations with ancillary tracers of the large-scale structure
• Merging history of massive galaxies at 3<z<6
• The informativeness of [C II] line-intensity mapping as a probe of the H I content and metallicity of galaxies at the end of reionization
• oLIMpus: An Effective Model for Line Intensity Mapping Auto- and Cross- Power Spectra in Cosmic Dawn and Reionization
• Lyα Intensity Mapping in HETDEX: Galaxy-Lyα Intensity Cross-Power Spectrum
• Revealing the formation histories of the first stars with the cosmic near-infrared background
• Optimizing Foreground Modelling for Global 21cm Cosmology with GPU-Accelerated Nested Sampling
• Cross-correlations between mm-wave line-intensity mapping and weak lensing surveys: preliminary consideration of long-term prospects
• Unveiling the evolution of the CO excitation ladder through cross-correlation of CONCERTO-like experiments and galaxy redshift surveys