Hydrogen Epoch of Reionization Array (HERA)

Abstract

The Hydrogen Epoch of Reionization Array (HERA) is a staged experiment to measure 21 cm emission from the primordial intergalactic medium (IGM) throughout cosmic reionization ($z=6-12$), and to explore earlier epochs of our Cosmic Dawn ($z\sim 30$). During these epochs, early stars and black holes heated and ionized the IGM, introducing fluctuations in 21 cm emission. HERA is designed to characterize the evolution of the 21 cm power spectrum to constrain the timing and morphology of reionization, the properties of the first galaxies, the evolution of large-scale structure, and the early sources of heating. The full HERA instrument will be a 350-element interferometer in South Africa consisting of 14-m parabolic dishes observing from 50 to 250 MHz. Currently, 19 dishes have been deployed on site and the next 18 are under construction. HERA has been designated as an SKA Precursor instrument. In this paper, we summarize HERA's scientific context and provide forecasts for its key science results. After reviewing the current state of the art in foreground mitigation, we use the delay-spectrum technique to motivate high-level performance requirements for the HERA instrument. Next, we present the HERA instrument design, along with the subsystem specifications that ensure that HERA meets its performance requirements. Finally, we summarize the schedule and status of the project. We conclude by suggesting that, given the realities of foreground contamination, current-generation 21 cm instruments are approaching their sensitivity limits. HERA is designed to bring both the sensitivity and the precision to deliver its primary science on the basis of proven foreground filtering techniques, while developing new subtraction techniques to unlock new capabilities. The result will be a major step toward realizing the widely recognized scientific potential of 21 cm cosmology.

26 pages, 24 figures, 2 tables

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• SARAS CD/EoR Radiometer: Design and performance of the Digital Correlation Spectrometer
• Bayesian Model Selection with Future 21cm Observations of The Epoch of Reionisation
• Evidence of Ultra-faint Radio Frequency Interference in Deep 21~cm Epoch of Reionization Power Spectra with the Murchison Widefield Array
• Fundamental uncertainty levels of 21cm power spectra from a delay analysis
• The large-scale 21-cm power spectrum from reionization
• The role of Pop III stars and early black holes in the 21cm signal from Cosmic Dawn
• Cosmological implications of the composite spectra of galactic X-ray binaries constructed using MAXI data
• Using the Long Wavelength Array to Search for Cosmic Dawn
• Observing the Reionization : Effect of Calibration and Position Errors on Realistic Observation Conditions
• 21cmFirstCLASS I. Cosmological tool for $\Lambda$CDM and beyond
• Methods of Error Estimation for Delay Power Spectra in $21\text{cm}$ Cosmology
• Constraining the Epoch of Reionization With Highly Dispersed Fast Radio Bursts
• A Model-Insensitive Baryon Acoustic Oscillation Feature in the 21 cm Signal from Reionization
• Antenna design for the SKA1-LOW and HERA super radio telescopes
• Reionization with Simba: How much does astrophysics matter in modeling cosmic reionization?
• A General Bayesian Framework to Account for Foreground Map Errors in Global 21-cm Experiments
• 21cmSense v2: A modular, open-source 21cm sensitivity calculator
• A fast and exact $w$-stacking and $w$-projection hybrid algorithm for wide-field interferometric imaging
• Machine-learning recovery of foreground wedge-removed 21-cm light cones for high-$z$ galaxy mapping
• The Tianlai dish array low-z surveys forecasts
• Exploring the cosmic dawn and epoch of reionization with 21cm line
• A Real-Time, All-Sky, High Time Resolution, Direct Imager for the Long Wavelength Array
• A Bayesian approach to high fidelity interferometric calibration II: demonstration with simulated data
• On the use of temporal filtering for mitigating galactic synchrotron calibration bias in 21 cm reionization observations
• Sky-averaged 21-cm signal extraction using multiple antennas with an SVD framework: the REACH case
• Probing early universe through redshifted 21-cm signal: Modelling and observational challenges
• Measuring the cosmic expansion rate using 21-cm velocity acoustic oscillations
• A Semi-blind PCA-based Foreground Subtraction Method for 21 cm Intensity Mapping
• Detecting the non-Gaussianity of the 21-cm signal during reionisation with the Wavelet Scattering Transform
• Probing dark matter interactions with 21cm observations
• Deep-Learning Study of the 21cm Differential Brightness Temperature During the Epoch of Reionization
• Probing Reionization and Early Cosmic Enrichment with the MgII Forest
• Probing Compensated Isocurvature with the 21-cm Signal during Cosmic Dawn
• Quantifying Density-Ionization Correlations with the 21cm Power Spectrum
• Optical depth to reionization from perturbative 21cm clustering
• Physics Beyond The Standard Model with Circular Polarization in the CMB and CMB-21cm Cross-Correlation
• Forecasts and Statistical Insights for Line Intensity Mapping Cross-Correlations: A Case Study with 21cm x [CII]
• Impact of instrument and data characteristics in the interferometric reconstruction of the 21 cm power spectrum
• Calibration Requirements for Epoch of Reionization 21-cm signal observations -- I. Effect of time-correlated gains
• Detecting the HI Power Spectrum in the Post-Reionization Universe with SKA-Low
• The Impact of Realistic Foreground and Instrument Models on 21cm Epoch of Reionization Experiments
• 21 cm line signal from magnetic modes
• On the general nature of 21cm-Lyman-$\alpha$ emitters cross-correlations during reionisation
• Persistent topology of the reionization bubble network. II: Evolution & Classification
• Generating extremely large-volume reionisation simulations
• Emulation of the Cosmic Dawn 21-cm Power Spectrum and Classification of Excess Radio Models Using an Artificial Neural Network
• Enlightening the dark ages with dark matter
• A multi-tracer empirically-driven approach to line-intensity mapping lightcones
• The First Billion Years in Seconds: An Effective Model for the 21-cm Signal with Population III Stars
• Extracting the Global 21-cm signal from Cosmic Dawn and Epoch of Reionization in the presence of Foreground and Ionosphere
• Photoevaporation of Minihalos during Cosmic Reionization: Primordial and Metal-Enriched Halos
• Extracting the Signal of Cosmic String Wakes from 21-cm Observations
• Statistical Detection of IGM Structures during Cosmic Reionization using Absorption of the Redshifted 21 cm line by HI against Compact Background Radio Sources
• Constraints on the state of the IGM at $z\sim 8-10$ using redshifted 21-cm observations with LOFAR
• Sensitivity of the Hydrogen Epoch of Reionization Array and its Build-out Stages to One-point Statistics from Redshifted 21 cm Observations
• Implications of the $z>5$ Lyman-$\alpha$ forest for the 21-cm power spectrum from the epoch of reionization
• Wavelet Based Statistics for Enhanced 21cm EoR Parameter Constraints
• Ionospheric Attenuation of Polarized Foregrounds in 21 cm Epoch of Reionization Measurements: A Demonstration for the HERA Experiment
• Minimum star-forming halo mass in axion cosmology
• Investigating the Contribution of Extended Radio Sources to the Epoch of Reionisation Power Spectrum
• HI intensity mapping with the MIGHTEE survey: power spectrum estimates
• All Sky Modelling Requirements for Bayesian 21 cm Power Spectrum Estimation with BayesEoR
• CII and HI 21-cm line intensity mapping from the EoR: Impact of the light-cone effect on auto and cross-power spectra
• Probing the primordial Universe with 21-cm line from cosmic dawn/epoch of reionization
• pyC${}^2$Ray: A flexible and GPU-accelerated Radiative Transfer Framework for Simulating the Cosmic Epoch of Reionization
• Redshifted 21-cm bispectrum: Impact of the source models on the signal and the IGM physics from the Cosmic Dawn
• A galaxy-free phenomenological model for the 21-cm power spectrum during reionization
• Reflections and Standing Waves on the Tianlai Cylinder Array
• Impact of $1/f$ noise on cosmological parameter constraints for SKA intensity mapping
• Opening Reionization: Quantitative Morphology of the Epoch of Reionization and Its Connection to the Cosmic Density Field
• The HI Bias during the Epoch of Reionization
• A GPU Spatial Processing System for CHIME
• Simultaneously constraining the astrophysics of reionisation and the epoch of heating with 21CMMC
• Degree-Scale Galactic Radio Emission at 122 MHz around the North Celestial Pole with LOFAR-AARTFAAC
• Constraining low redshift [CII] Emission by Cross-Correlating FIRAS and BOSS Data
• Synergizing 21 cm and sub-millimetre surveys during reionization: new empirical insights
• Characterization Of Inpaint Residuals In Interferometric Measurements of the Epoch Of Reionization
• Transient RFI environment of LOFAR-LBA at 72-75 MHz: Impact on ultra-widefield AARTFAAC Cosmic Explorer observations of the redshifted 21-cm signal
• Probing delayed-end reionization histories with the 21cm-LAE cross-power spectrum
• Optimal, fast, and robust inference of reionization-era cosmology with the 21cmPIE-INN
• Delensing Degree-Scale $B$-Mode Polarization with High-Redshift Line Intensity Mapping
• Verifying and Reporting Fast Radio Bursts
• Redundant interferometric calibration as a complex optimization problem
• Contribution of Radio Halos to the Foreground for SKA EoR Experiments
• Detection of Cosmic Structures using the Bispectrum Phase. I. Mathematical Foundations
• Simulation-Based Inference of the sky-averaged 21-cm signal from CD-EoR with REACH
• An analytical method to simulate the HI 21-cm visibility signal for intensity mapping experiments
• Efficient exploration of reionization parameters for the upcoming 21 cm observations using a photon conserving semi-numerical model SCRIPT
• Direct Optimal Mapping for 21cm Cosmology: A Demonstration with the Hydrogen Epoch of Reionization Array
• Building models for extended radio sources: implications for Epoch of Reionisation science
• A fast method of reionization parameter space exploration using GPR trained SCRIPT
• Distinguishing reionization models using the largest cluster statistics of the 21-cm maps
• A Global Semi-Analytic Model of the First Stars and Galaxies Including Dark Matter Halo Merger Histories
• Receiver design for the REACH global 21-cm signal experiment
• Estimating the Feasibility of 21cm-Ly$\alpha$ Synergies using the Hydrogen Epoch of Reionization Array
• Estimation of HII Bubble Size Distribution from 21cm Power Spectrum with Artificial Neural Networks
• Probing the intergalactic medium during the Epoch of Reionization using 21-cm signal power spectra
• Radio Frequency Interference Detection Using Efficient Multi-Scale Convolutional Attention UNet
• An Image-based Tapered Gridded Estimator (ITGE) for the angular power spectrum
• Mapping discrete galaxies at cosmic dawn with 21-centimeter observations
• Ionospheric contributions to the excess power in high-redshift 21-cm power-spectrum observations with LOFAR
• The gravitational and lensing-ISW bispectrum of 21cm radiation
• Spectral modelling of Cygnus A between 110 and 250 MHz. Impact on the LOFAR 21-cm signal power spectrum
• Effects of model incompleteness on the drift-scan calibration of radio telescopes
• Square Kilometre Array Science Data Challenge 3a: foreground removal for an EoR experiment
• Antisymmetric cross-correlation of line-intensity maps as a probe of reionization
• Multi-frequency angular power spectrum of the 21~cm signal from the Epoch of Reionisation using the Murchison Widefield Array
• Effects of feedback-free starburst galaxies on the 21-cm signal and reionization history
• Probing Dark Relativistic Species and Their Interactions with Dark Matter through CMB and 21cm surveys
• Understanding the Impact of Semi-numeric Reionization Models when using CNNs
• Prospects for Observing High-redshift Radio-loud Quasars in the SKA Era: Paving the Way for 21-cm Forest Observations
• Galactic wind X-ray heating of the intergalactic medium during the Epoch of Reionization
• Contribution of Galactic free-free emission to the foreground for EoR signal in SKA experiments
• Analysing the Epoch of Reionization with three-point correlation functions and machine learning techniques
• Black holes at cosmic dawn in the redshifted 21cm signal of HI
• Calibration requirements for Epoch of Reionization 21-cm signal observations -- II. Analytical estimation of the bias and variance with time-correlated residual gains
• X-ray Binaries in External Galaxies
• Primordial Magnetic Fields in Light of Dark Ages Global 21-cm Signal
• FlexKnot as a Generalised Model of the Sky-averaged 21-cm Signal at z ~ 6-30 in the Presence of Systematics
• Mapping the Universe in HD
• Using the sample variance of 21cm maps as a tracer of the ionisation topology
• Unlocking Sensitivity for Visibility-based Estimators of the 21 cm Reionization Power Spectrum
• Lux ex tenebris: The imprint of annihilating dark matter on the intergalactic medium during Cosmic Dawn
• Optimization and Commissioning of the EPIC Commensal Radio Transient Imager for the Long Wavelength Array
• First upper limits on the 21-cm signal power spectrum of neutral hydrogen at $z=9.16$ from the LOFAR 3C196 field
• The ultimate frontier of 21cm cosmology
• Joint 21-cm and CMB Forecasts for Constraining Self-Interacting Massive Neutrinos
• SIMPLE: Simple Intensity Map Producer for Line Emission
• Why and When to Expect Gaussian Error Distributions in Epoch of Reionization 21-cm Power Spectrum Measurements
• Lyman Alpha Emitters and the 21cm Power Spectrum as Probes of Density-Ionization Correlation in the Epoch of Reionization
• Radiative transfer of Lyman-$\alpha$ photons at cosmic dawn with realistic gas physics
• Robust statistics toward detection of the 21 cm signal from the Epoch of Reionisation
• Analyzing the 21cm forest with Wavelet Scattering Transform: Insight into non-Gaussian features of the 21cm forest
• A Differentiable, End-to-End Forward Model for 21 cm Cosmology: Estimating the Foreground, Instrument, and Signal Joint Posterior
• Foreground and sensitivity analysis for broad band (2D) 21cm--Ly-alpha and 21cm--H-alpha correlation experiments probing the Epoch of Reionization
• Direct Parameter Inference from Global EoR Signal with Bayesian Statistics
• Pre-selection of the Candidate Fields for Deep Imaging of the Epoch of Reionization with SKA1-Low
• A Comparative Analysis To Deal With Missing Spectral Information Caused By RFI In Cosmological HI 21CM Observations
• Measurements of one-point statistics in 21 cm intensity maps via foreground avoidance strategy
• Towards Optimal Foreground Mitigation Strategies for Interferometric HI Intensity Mapping in the Low-Redshift Universe
• The Tracking Tapered Gridded Estimator (TTGE) for the power spectrum from drift scan observations
• Observations of Ly$\alpha$ Emitters at High Redshift
• Search for the Epoch of Reionisation with HERA: Upper Limits on the Closure Phase Delay Power Spectrum
• Reionization and Cosmic Dawn: theory and simulations
• Interpreting the HI 21-cm cosmology maps through Largest Cluster Statistics -- I: Impact of the synthetic SKA1-Low observations
• Studying the Multi-frequency Angular Power Spectrum of the Cosmic Dawn 21-cm Signal
• Towards Accurate Modeling of Line-Intensity Mapping One-Point Statistics: Including Extended Profiles
• Probing light relics through cosmic dawn
• Aliasing from Galactic Plane Setting in Widefield Radio Interferometry
• Rapid and Late Cosmic Reionization Driven by Massive Galaxies: a Joint Analysis of Constraints from 21-cm, Lyman Line & CMB Data Sets
• A Forecast for Large Scale Structure Constraints on Horndeski Gravity with Line Intensity Mapping
• Comparing sampling techniques to chart parameter space of 21 cm Global signal with Artificial Neural Networks
• A statistical framework for recovering intensity mapping autocorrelations from crosscorrelations
• Characterizing Beam Errors for Radio Interferometric Observations of Reionization
• The Impact of ionization Morphology and X-ray Heating on the Cosmological 21cm Skew Spectrum
• Understanding spectral artefacts in SKA-LOW 21-cm cosmology experiments: the impact of cable reflections
• Statistical estimation of full-sky radio maps from 21cm array visibility data using Gaussian constrained realizations
• Prospects of FRBs and Large Scale 21 cm Power Spectra in Constraining the Epoch of Reionization
• Probing the Epoch of Reionization using synergies of line intensity mapping
• A strong broadband 21 cm cosmological signal from dark matter spin-flip interactions
• Improvements to the Search for Cosmic Dawn Using the Long Wavelength Array
• Fast Simulation of Cosmological Neutral Hydrogen based on the Halo Model
• Real-time stream processing in radio astronomy
• Large HI optical depth and Redshifted 21-cm signal from cosmic dawn
• Linear Polarization of the 21 cm Line from the Epoch of Reionization
• A Semi-Analytical Model for the Formation and Evolution of Radio Relics in Galaxy Clusters
• Automated Detection of Antenna Malfunctions in Large-N Interferometers: A Case Study with the Hydrogen Epoch of Reionization Array
• Sensitivity of the Global 21-cm Signal to Dark Matter-Baryon Scattering
• Simulations of primary beam effects on the cosmic bispectrum phase observed with the Hydrogen Epoch of Reionization Array
• Effects of Small-Scale Absorption Systems on Neutral Islands during the Late Epoch of Reionization
• Cross-correlation of the Polarizations of the 21-cm and Cosmic Microwave Backgrounds
• Calibration Schemes with $\mathcal{O}(N\log N)$ Scaling for Large-N Radio Interferometers Built on a Regular Grid
• Low-cost, Low-loss, Ultra-wideband Compact Feed for Interferometric Radio Telescopes
• Low-Frequency Radio Recombination Lines Away From the Inner Galactic Plane
• A Bayesian Method to Mitigate the Effects of Unmodelled Time-Varying Systematics for 21-cm Cosmology Experiments
• Probing self-interacting ultrahigh-energy neutrinos with the cosmic 21-cm signal
• Ionospheric effect on the synthetic Epoch of Reionization observations with the SKA1-Low
• The impact of lossy data compression on the power spectrum of the high redshift 21-cm signal with LOFAR
• Strategy for mitigation of systematics for EoR experiments with the Murchison Widefield Array
• Reconstructing the epoch of reionisation with Planck PR4
• Field-level Reconstruction from Foreground-Contaminated 21-cm Maps
• Forecasting 21-cm power spectrum sensitivity to dark Matter-baryon scattering
• Expanded Generalized Needlet Internal Linear Combination (eGNILC) Framework for the 21-cm Foreground Removal
• Perspectives on fundamental cosmology from Low Earth Orbit and the Moon
• Singular spectrum analysis of time series data from low frequency radiometers, with an application to SITARA data
• Impact of the turnover in the high-z galaxy luminosity function on the 21-cm signal during Cosmic Dawn and Epoch of Reionization
• Beam Maps of the Canadian Hydrogen Intensity Mapping Experiment (CHIME) Measured with a Drone
• Gravitational Wave Resonance in Ultra-Light Dark Matter Halos
• Common Origin of Warm Dark Matter and Dark Radiation
• Detecting 21 cm EoR Signal using Drift Scans: Correlation of Time-ordered Visibilities
• Towards a multi-tracer neutrino mass measurement with line-intensity mapping
• Synthetic Observations with the Square Kilometre Array (SKA) -- development towards an end-to-end pipeline
• Fisher matrix forecasts on the astrophysics of galaxies during the epoch of reionisation from the 21-cm power spectra
• Reionization Parameter Inference from 3D Minkowski Functionals of the 21 cm Signals
• Kinetic recoupling of dark matter
• Characterization of the AARTFAAC-12 aperture array: radio source counts at 42 and 61 MHz
• Global 21 cm signal: a promising probe of primordial features
• The 21cm-galaxy cross-correlation: Realistic forecast for 21cm signal detection and reionisation constraints
• Impact of Calibration and Position Errors on Astrophysical Parameters of the HI 21cm Signal
• Detecting Cosmic 21 cm Global Signal Using an Improved Polynomial Fitting Algorithm
• Exploring One-point Statistics in HERA Phase I Data: Effects of Foregrounds and Systematics on Measuring One-Point Statistics
• Reionisation time fields reconstruction from 21 cm signal maps
• Astrophysical uncertainties challenge 21-cm forecasts: A primordial black hole case study
• Lyα Intensity Mapping in HETDEX: Galaxy-Lyα Intensity Cross-Power Spectrum
• The Optical Depth of Foregrounds for the Highest Redshift 21 cm Signals
• Removal of interloper contamination to line-intensity maps using correlations with ancillary tracers of the large-scale structure
• Extracting 21cm signal by frequency and angular filtering
• The Anomalous 21-cm Absorption at High Redshifts
• AlgoSCR: An algorithm for Solar Contamination Removal from radio interferometric data
• Extracting the Epoch of Reionization Signal with 3D U-Net Neural Networks Using Data-driven Systematic Effect Model
• The Aperture Array Verification System 1: System overview and early commissioning results
• Confronting global 21-cm signal with ${\mathbb{Z}}_3$ symmetric dark matter models
• A Digital Calibration Source for 21cm Cosmology Telescopes
• oLIMpus: An Effective Model for Line Intensity Mapping Auto- and Cross- Power Spectra in Cosmic Dawn and Reionization
• Probing Non-Minimal Dark Sectors via the 21 cm Line at Cosmic Dawn
• Drone Beam Mapping of the TONE Radio Dish Array
• Primary Beam Chromaticity in HIRAX: I. Characterization from Simulations and Power Spectrum Implications
• Blade Antenna-SDR System Prototype for the CANTAR Global 21-cm Experiment: Simulations, Measurements, and In-Situ Results
• Measurement of the Primary Beam of the Tianlai Cylindrical Antenna Using an Unmanned Aerial Vehicle
• In Search of Global 21-cm Signal using Artificial Neural Network in light of ARCADE 2
• Spiking Neural Networks for Radio Frequency Interference Detection in Radio Astronomy
• Radiative Transfer Simulations of Ly$\alpha$ Intensity Mapping During Cosmic Reionization Including Sources from Galaxies and the Intergalactic Medium
• Radiative transfer of 21-cm line through ionised cavities in an expanding universe
• Disentangling the anisotropic radio sky: Fisher forecasts for 21cm arrays
• Mapping neutral islands during end stages of reionization with photometric intergalactic medium tomography
• The Effect of Large Optical Depths on the Non-Gaussian 21-cm signal from Cosmic Dawn
• INTEGRAL, eROSITA and Voyager Constraints on Light Bosonic Dark Matter: ALPs, Dark Photons, Scalars, $B-L$ and $L_i-L_j$ Vectors
• Simulated differential observations of the Sunyaev-Zel'dovich Effect: Probing the Dark Ages and Epoch of Reionization
• The magnitude of the dark ages 21-cm signal in the context of existing early and late time constraints on $\Lambda$CDM
• Feasibility Study of Pion and Kaon Structure via the Sullivan Process at EicC
• Noise Reduction Method for Radio Astronomy Single Station Observation Based on Wavelet Transform and Mathematical Morphology
• Axion-Photon Conversion In Magnetized Universe: Impact On The Global 21-cm Signal
• The Evolving Power Spectrum for the light cone Epoch of Reionization (EoR) 21-cm signal
• Forecasts on Interacting Dark Energy from 21-cm Angular Power Spectrum with BINGO and SKA observations
• Imprints of fermionic and bosonic mixed dark matter on the 21-cm signal at cosmic dawn
• Revealing the formation histories of the first stars with the cosmic near-infrared background
• Combined lensed estimator to probe the post reionization H I power spectrum
• Nonlinear reconstruction of 21cm global signal from 21cm power spectrum with artificial neural networks
• Operational Non-identifiability of Single-epoch Low-rank RFI Mitigation: Controlled Failure-mode Analysis and HERA Evidence
• Structure Formation with Dark Magnetohydrodynamics
• Imaging and Modeling Data from the Hydrogen Epoch of Reionization Array
• Accelerating reionization constraints: An ANN-emulator framework for the SCRIPT Semi-numerical Model
• Cosmological Implications of Thermodynamic Split Conjecture
• Mitigating gain calibration errors from EoR observations with SKA1-Low AA*
• Direct Wide-Field Radio Imaging in Real-Time at High Time Resolution using Antenna Electric Fields
• Simulating a full-sky high resolution Galactic synchrotron spectral index map using neural networks
• Thermodynamic Split Conjecture and an Observational Test for Cosmological Entropy
• Simulation based inference of the ionization history from the 2D 21 cm power spectrum
• Power spectrum multipoles and clustering wedges during the Epoch of Reionization
• Sample Variance Denoising in Cylindrical 21-cm Power Spectra
• Quantifying and mitigating the effect of snapshot interval in light-cone Epoch of Reionization 21-cm simulations
• The Correlation Calibration of PAPER-64 data
• An SBC-based controller and processor for the laboratory model of PRATUSH Digital Receiver
• Effect of the cosmological transition to metal-enriched star-formation on the hydrogen 21-cm signal
• Exploring delaying and heating effects on the 21-cm signature of fuzzy dark matter
• The 21-cm signal from the Cosmic Dawn: metallicity dependence of high mass X-ray binaries
• Removing systematics-induced 21-cm foreground residuals by cross-correlating filtered data
• Semi-empirical constraints on the HI mass function of star-forming galaxies and ${\Omega }_{\mathrm{HI}}$ at $z\sim 0.37$ from interferometric surveys
• Direct reconstruction of the Reionization history from 21cm 2D Power Spectra
• On the accuracy of posterior recovery with neural network emulators
• A Cloud-native Agile approach to cyber platform prototyping and integration for astronomy: the ENGAGE SKA case
• Advancing RFI-Detection in Radio Astronomy with Liquid State Machines
• Optimizing Foreground Modelling for Global 21cm Cosmology with GPU-Accelerated Nested Sampling
• Bayes-SCF: A Bayesian filter to mitigate foreground leakage in the 21-cm power spectrum
• Foreground Subtraction with a Tensor-Based Oriented Singular Value Decomposition Method for HI Experiments
• Establishing a relationship between the cosmological 21 cm power spectrum and interferometric closure phases
• Classification of Radio Backgrounds at Cosmic Dawn and 21 cm Signal Confirmation Using Neural Networks
• Nearest Neighbour-Based Statistics for 21cm-Galaxy Cross-Correlations in the Epoch of Reionization
• From Dark Matter Minihalos to Large-Scale Radiative Feedback: A Self-Consistent 3D Simulation of the First Stars and Galaxies using Neural Networks