A multi-tracer empirically-driven approach to line-intensity mapping lightcones

Abstract

Line-intensity mapping (LIM) is an emerging technique to probe the large-scale structure of the Universe. By targeting the integrated intensity of specific spectral lines, it captures the emission from all sources and is sensitive to the astrophysical processes that drive galaxy evolution. Relating these processes to the underlying distribution of matter introduces observational and theoretical challenges, such as observational contamination and highly non-Gaussian fields, which motivate the use of simulations to better characterize the signal. In this work we present SkyLine, a computational framework to generate realistic mock LIM observations that include observational features and foreground contamination, as well as a variety of self-consistent tracer catalogs. We apply our framework to generate realizations of LIM maps from the MultiDark Planck 2 simulations coupled to the UniverseMachine galaxy formation model. We showcase the potential of our scheme by exploring the voxel intensity distribution and the power spectrum of emission lines such as 21 cm, CO, CII, and Lyman-$\alpha$, their mutual cross-correlations, and cross-correlations with galaxy clustering. We additionally present cross-correlations between LIM and sub-millimeter extragalactic tracers of large-scale structure such as the cosmic infrared background and the thermal Sunyaev-Zel'dovich effect, as well as quantify the impact of galactic foregrounds, line interlopers and instrument noise on LIM observations. These simulated products will be crucial in quantifying the true information content of LIM surveys and their cross-correlations in the coming decade, and to develop strategies to overcome the impact of contaminants and maximize the scientific return from LIM experiments.

arXiv comment16+1 pages, 12 figures. Code and fiducial lightcones available at https://github.com/kokron/skyLine . Reflects published version

References in corpus (123)

• SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python
• Array Programming with NumPy
• Planck 2015 results. XIII. Cosmological parameters
• Galactic Stellar and Substellar Initial Mass Function
• Star Formation in Galaxies Along the Hubble Sequence
• HEALPix -- a Framework for High Resolution Discretization, and Fast Analysis of Data Distributed on the Sphere
• The Global Schmidt Law in Star Forming Galaxies
• Cosmic Star Formation History
• Galaxies on FIRE (Feedback In Realistic Environments): Stellar Feedback Explains Cosmologically Inefficient Star Formation
• The Rockstar Phase-Space Temporal Halo Finder and the Velocity Offsets of Cluster Cores
• Physical Models of Galaxy Formation in a Cosmological Framework
• The DESI Experiment Part I: Science,Targeting, and Survey Design
• UniverseMachine: The Correlation between Galaxy Growth and Dark Matter Halo Assembly from z=0-10
• Simba: Cosmological Simulations with Black Hole Growth and Feedback
• AMAZE. I. The evolution of the mass-metallicity relation at z>3
• MultiDark simulations: the story of dark matter halo concentrations and density profiles
• Power Spectrum Analysis of Three-Dimensional Redshift Surveys
• The Connection between Galaxies and their Dark Matter Halos
• Modeling Luminosity-Dependent Galaxy Clustering Through Cosmic Time
• 21cmFAST: A Fast, Semi-Numerical Simulation of the High-Redshift 21-cm Signal
• Hydrogen Epoch of Reionization Array (HERA)
• Gravitationally Consistent Halo Catalogs and Merger Trees for Precision Cosmology
• Understanding Galaxy Evolution through Emission Lines
• Physical properties and environments of nearby galaxies
• The EAGLE simulations of galaxy formation: public release of halo and galaxy catalogues
• Efficient Simulations of Early Structure Formation and Reionization
• Late-time cosmology with 21cm intensity mapping experiments
• ALMA Spectroscopic Survey in the Hubble Ultra Deep Field: The Infrared Excess of UV-selected z=2-10 galaxies as a function of UV-continuum Slope and Stellar Mass
• nbodykit: an open-source, massively parallel toolkit for large-scale structure
• The Python Sky Model: software for simulating the Galactic microwave sky
• Halo and Subhalo Demographics with Planck Cosmological Parameters: Bolshoi-Planck and MultiDark-Planck Simulations
• Data Analysis for Precision 21 cm Cosmology
• Introducing the THESAN project: radiation-magnetohydrodynamic simulations of the epoch of reionization
• A Measurement of the Quadrupole Power Spectrum in the Clustering of the 2dF QSO Survey
• Ingredients for 21cm intensity mapping
• The [CII] 158 micron line emission in high-redshift galaxies
• On the [CII]-SFR relation in high redshift galaxies
• The impact of clustering and angular resolution on far-infrared and millimeter continuum observations
• Line-Intensity Mapping: 2017 Status Report
• COLDz: Shape of the CO Luminosity Function at High Redshift and the Cold Gas History of the Universe
• The ALMA Spectroscopic Survey Large Program: The Infrared Excess of z=1.5-10 UV-selected Galaxies and the Implied High-Redshift Star Formation History
• Predictions for the CO emission of galaxies from a coupled simulation of galaxy formation and photon dominated regions
• L'CO/LFIR Relations with CO Rotational Ladders of Galaxies Across the Herschel SPIRE Archive
• Planck 2015 results. XXIII. The thermal Sunyaev-Zeldovich effect--cosmic infrared background correlation
• HerMES: dust attenuation and star formation activity in UV-selected samples from z~4 to z~1.5
• Connecting CO Intensity Mapping to Molecular Gas and Star Formation in the Epoch of Galaxy Assembly
• The Hobby-Eberly Telescope Dark Energy Experiment (HETDEX) Survey Design, Reductions, and Detections
• HI intensity mapping with MeerKAT: power spectrum detection in cross-correlation with WiggleZ galaxies
• SIGAME simulations of the [CII], [OI] and [OIII] line emission from star forming galaxies at z ~ 6
• COPSS II: The Molecular Gas Content of Ten Million Cubic Megaparsecs at $z\sim 3$
• A survey of high-$z$ galaxies: SERRA simulations
• Line-Intensity Mapping: Theory Review
• Detection of Cosmological 21 cm Emission with the Canadian Hydrogen Intensity Mapping Experiment
• Intensity mapping of [CII] from early galaxies
• On Removing Interloper Contamination from Intensity Mapping Power Spectrum Measurements
• Deep 3 GHz Number Counts from a P(D) Fluctuation Analysis
• Interpreting the unresolved intensity of cosmologically redshifted line radiation
• The art of modeling CO, [CI], and [CII] in cosmological galaxy formation models
• A User's Guide to Extracting Cosmological Information from Line-Intensity Maps
• A wide field-of-view low-resolution spectrometer at APEX: instrument design and science forecast
• The THESAN project: predictions for multi-tracer line intensity mapping in the epoch of reionization
• Sub-mm Emission Line Deep Fields: CO and [CII] Luminosity Functions out to z = 6
• Spectral Line De-confusion in an Intensity Mapping Survey
• An Intensity Mapping Detection of Aggregate CO Line Emission at 3 mm
• MeerKLASS: MeerKAT Large Area Synoptic Survey
• COMAP Early Science: I. Overview
• Foreground contamination in Ly-alpha intensity mapping during the epoch of reionization
• Large-scale clustering of Lyman-alpha emission intensity from SDSS/BOSS
• Search for CII Emission on Cosmological Scales at Redshift Z~2.6
• Predictions and sensitivity forecasts for reionization-era [C II] line intensity mapping
• Constraining the CO intensity mapping power spectrum at intermediate redshifts
• CONCERTO: High-fidelity simulation of millimeter line emissions of galaxies and [CII] intensity mapping
• Multi-tracer intensity mapping: Cross-correlations, Line noise & Decorrelation
• A Self-consistent Framework for Multiline Modeling in Line Intensity Mapping Experiments
• Intensity mapping of H-alpha, H-beta, [OII] and [OIII] lines at z<5
• Probing Cosmic Reionization and Molecular Gas Growth with TIME
• Joint power spectrum and voxel intensity distribution forecast on the CO luminosity function with COMAP
• An empirical representation of a physical model for the ISM [CII], CO, and [CI] emission at redshift $1\le z\le 9$
• Calibrating photometric redshifts with intensity mapping observations
• Evidence for CII diffuse line emission at redshift $z\sim 2.6$
• Far-IR/Submillimeter Spectroscopic Cosmological Surveys: Predictions of Infrared Line Luminosity Functions for z<4 Galaxies
• Cross-correlating Carbon Monoxide Line-intensity Maps with Spectroscopic and Photometric Galaxy Surveys
• Dark Energy Survey Year 3 results: cosmology from combined galaxy clustering and lensing -- validation on cosmological simulations
• Strategies to Detect Dark-Matter Decays with Line-Intensity Mapping
• The [CII]--SFR correlation in dwarf galaxies across cosmic time
• Multitracer cosmological line intensity mapping mock lightcone simulation
• AMBER: A Semi-numerical Abundance Matching Box for the Epoch of Reionization
• COMAP Early Science: V. Constraints and Forecasts at $z\sim 3$
• Forecasting [C II] line-intensity mapping measurements between the end of reionization and the epoch of galaxy assembly
• Cross-correlation of cosmic far-infrared background anisotropies with large scale structures
• Precision Tests of CO and [CII] Power Spectra Models against Simulated Intensity Maps
• Surface Brightness Profile of Lyman-$\alpha$ Halos out to 320 kpc in HETDEX
• CoLoRe: fast cosmological realisations over large volumes with multiple tracers
• Cosmological constraints from line intensity mapping with interlopers
• Intensity Mapping in the Presence of Foregrounds and Correlated Continuum Emission
• Detecting the radiative decay of the cosmic neutrino background with line-intensity mapping
• Power spectrum modelling of galaxy and radio intensity maps including observational effects
• Extracting bias using the cross-bispectrum: An EoR and 21 cm-[CII]-[CII] case study
• A model of spectral line broadening in signal forecasts for line-intensity mapping experiments
• The 21 cm-kSZ-kSZ Bispectrum during the Epoch of Reionization
• LIMFAST. II. Line Intensity Mapping as a Probe of High-Redshift Galaxy Formation
• LIMFAST. I. A Semi-Numerical Tool for Line Intensity Mapping
• Deep learning for intensity mapping observations: Component extraction
• Kinetic Sunyaev-Zel'dovich tomography with line-intensity mapping
• SILVERRUSH. IX. Lya Intensity Mapping with Star-Forming Galaxies at z=5.7 and 6.6: A Possible Detection of Extended Lya Emission at $\gtrsim$100 comoving kpc around and beyond the Virial-Radius Scale of Galaxy Dark Matter Halos
• Probing Population III Initial Mass Functions with He II/H$\alpha$ Intensity Mapping
• HI Intensity Mapping for Clustering-Based Redshift Estimation
• Lyα Halos around [O III]-Selected Galaxies in HETDEX
• Biases and Cosmic Variance in Molecular Gas Abundance Measurements
• A minimal empirical model for the cosmic far-infrared background anisotropies
• A partial inventory of observational anisotropies in single-dish line-intensity mapping
• The star formation history in the last 10 billion years from CIB cross-correlations
• CII and HI 21-cm line intensity mapping from the EoR: Impact of the light-cone effect on auto and cross-power spectra
• Delensing Degree-Scale $B$-Mode Polarization with High-Redshift Line Intensity Mapping
• The Terahertz Intensity Mapper (TIM): a Next-Generation Experiment for Galaxy Evolution Studies
• Agora: Multi-Component Simulation for Cross-Survey Science
• Constraining the physics of star formation from CIB-cosmic shear cross-correlations
• Antisymmetric cross-correlation of line-intensity maps as a probe of reionization
• Characterizing the Conditional Galaxy Property Distribution using Gaussian Mixture Models
• The deconvolved distribution estimator: enhancing reionisation-era CO line-intensity mapping analyses with a cross-correlation analogue for one-point statistics
• Characteristic Functions for Cosmological Cross-Correlations
• Synergies between the COMAP CO Line Intensity Mapping mission and a Lyα galaxy survey: How to probe the early universe with voxel based analysis of observational data
• Constraining the Star Formation Rate using Joint CIB Continuum and [CII] Intensity Mapping

Cited by in corpus (9)

• Forecasts and Statistical Insights for Line Intensity Mapping Cross-Correlations: A Case Study with 21cm x [CII]
• SIMPLE: Simple Intensity Map Producer for Line Emission
• On the contributions of extragalactic CO emission lines to ground-based CMB observations
• $\text{slick}$: Modeling a Universe of Molecular Line Luminosities in Hydrodynamical Simulations
• Scatter in the star formation rate-halo mass relation: secondary bias and its impact on line-intensity mapping
• 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
• oLIMpus: An Effective Model for Line Intensity Mapping Auto- and Cross- Power Spectra in Cosmic Dawn and Reionization
• Delensing CMB B-modes using galaxy surveys: the effect of galaxy bias and matter clustering non-linearities