A fast method of reionization parameter space exploration using GPR trained SCRIPT

Abstract

Efficient exploration of parameter spaces is crucial to extract physical information about the Epoch of Reionization from various observational probes. To this end, we propose a fast technique based on Gaussian Process Regression (GPR) training applied to a semi-numerical photon-conserving reionization model, SCRIPT. Our approach takes advantage of the numerical convergence properties of SCRIPT and constructs a training set based on low-cost, coarse-resolution simulations. A likelihood emulator is then trained using this set to produce results in approximately two orders of magnitude less computational time than a full MCMC run, while still generating reasonable 68% and 95% confidence contours. Furthermore, we conduct a forecasting study using simulated data to demonstrate the applicability of this technique. This method is particularly useful when full MCMC analysis is not feasible due to expensive likelihood computations.

arXiv commentAccepted for publication in MNRAS

References in corpus (119)

• Planck 2015 results. XIII. Cosmological parameters
• Cosmological parameters from CMB and other data: a Monte-Carlo approach
• LOFAR: The LOw-Frequency ARray
• In the Beginning: The First Sources of Light and the Reionization of the Universe
• The Murchison Widefield Array: the Square Kilometre Array Precursor at low radio frequencies
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• An absorption profile centred at 78 megahertz in the sky-averaged spectrum
• An 800-million-solar-mass black hole in a significantly neutral Universe at redshift 7.5
• 21-cm cosmology
• An excursion set model of hierarchical clustering: Ellipsoidal collapse and the moving barrier
• Multi-scale initial conditions for cosmological simulations
• 21cmFAST: A Fast, Semi-Numerical Simulation of the High-Redshift 21-cm Signal
• Equation of State of the Photoionized Intergalactic Medium
• The Evolution of the Galaxy Rest-Frame Ultraviolet Luminosity Function Over the First Two Billion Years
• Cobaya: Code for Bayesian Analysis of hierarchical physical models
• Hydrogen Epoch of Reionization Array (HERA)
• Efficient sampling of fast and slow cosmological parameters
• Model-independent evidence in favor of an end to reionization by z~6
• Efficient Simulations of Early Structure Formation and Reionization
• The evolution of the galaxy UV luminosity function at redshifts z ~ 8-15 from deep JWST and ground-based near-infrared imaging
• Evidence of patchy hydrogen reionization from an extreme Ly$\alpha$ trough below redshift six
• New Determinations of the UV Luminosity Functions from z~9 to z~2 show a remarkable consistency with halo growth and a constant star formation efficiency
• Simulating Cosmic Reionization at Large Scales I: the Geometry of Reionization
• The Universe is Reionizing at z~7: Bayesian Inference of the IGM Neutral Fraction Using Ly$\alpha$ Emission from Galaxies
• Transients from Initial Conditions: A Perturbative Analysis
• Simulations and Analytic Calculations of Bubble Growth During Hydrogen Reionization
• A simulation calibrated limit on the HI power spectrum from the GMRT Epoch of Reionization experiment
• Improved upper limits on the 21-cm signal power spectrum of neutral hydrogen at $\mathbf{z}\approx 9.1$ from LOFAR
• Hydrogen reionisation ends by $z=5.3$: Lyman-$\alpha$ optical depth measured by the XQR-30 sample
• Rapid Reionization by the Oligarchs: The Case for Massive, UV-Bright, Star-Forming Galaxies with High Escape Fractions
• Upper limits on the 21-cm Epoch of Reionization power spectrum from one night with LOFAR
• Large Lyman-alpha opacity fluctuations and low CMB tau in models of late reionization with large islands of neutral hydrogen extending to z<5.5
• Inferring the astrophysics of reionization and cosmic dawn from galaxy luminosity functions and the 21-cm signal
• 21CMMC: an MCMC analysis tool enabling astrophysical parameter studies of the cosmic 21 cm signal
• The z~6 Luminosity Function Fainter than -15 mag from the Hubble Frontier Fields: The Impact of Magnification Uncertainties
• Radiative transfer simulations of cosmic reionization I: methodology and initial results
• The Extreme Faint End of the UV Luminosity Function at $z\sim 6$ Through Gravitational Telescopes: a comprehensive assessment of strong lensing uncertainties
• Introducing the THESAN project: radiation-magnetohydrodynamic simulations of the epoch of reionization
• Deep multi-redshift limits on Epoch of Reionisation 21cm Power Spectra from Four Seasons of Murchison Widefield Array Observations
• 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
• Cosmic Dawn (CoDa): the First Radiation-Hydrodynamics Simulation of Reionization and Galaxy Formation in the Local Universe
• The First Billion Years Project: The escape fraction of ionizing photons in the epoch of reionization
• Galaxy Properties and UV Escape Fractions During Epoch of Reionization: Results from the Renaissance Simulations
• Comparison Of Reionization Models: Radiative Transfer Simulations And Approximate, Semi-Numeric Models
• Simulating Cosmic Reionization at Large Scales II: the 21-cm Emission Features and Statistical Signals
• First Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum
• New constraints on Lyman-α opacity with a sample of 62 quasars at z > 5.7
• Simulating cosmic reionization: How large a volume is large enough?
• Constraints on the Star Formation Efficiency of Galaxies During the Epoch of Reionization
• Accelerated Evolution of Ly$\alpha$ Luminosity Function at $\text{z}\gtrsim 7$ Revealed by the Subaru Ultra-Deep Survey for Ly$\alpha$ Emitters at $\text{z}=7.3$
• New Constraints on IGM Thermal Evolution from the Lyα Forest Power Spectrum
• New Constraints on the Faint-end of the UV Luminosity Function at z~7-8 using the Gravitational Lensing of the Hubble Frontier Fields Cluster A2744
• HERA Phase I Limits on the Cosmic 21-cm Signal: Constraints on Astrophysics and Cosmology During the Epoch of Reionization
• Fast Large Volume Simulations of the 21 cm Signal from the Reionization and pre-Reionization Epochs
• The Cosmic Dawn and Epoch of Reionization with the Square Kilometre Array
• First Results from the Lyman Alpha Galaxies in the Epoch of Reionization (LAGER) Survey: Cosmological Reionization at z ~ 7
• The Opacity of the Intergalactic Medium Measured Along Quasar Sightlines at $z\sim 6$
• No missing photons for reionization: moderate ionizing photon escape fractions from the FIRE-2 simulations
• Dark-ages reionization and galaxy formation simulation - III. Modelling galaxy formation and the epoch of reionization
• Measurements of the z ~ 6 Intergalactic Medium Optical Depth and Transmission Spikes Using a New z > 6.3 Quasar Sample
• Probing the thermal state of the intergalactic medium at $z>5$ with the transmission spikes in high-resolution Ly$\alpha$ forest spectra
• Reionization and galaxy inference from the high-redshift Lyα forest
• The THESAN project: properties of the intergalactic medium and its connection to Reionization-era galaxies
• Astraeus I: The interplay between galaxy formation and reionization
• The 21 cm Power Spectrum from the Cosmic Dawn: First Results from the OVRO-LWA
• Observing the tail of reionization: neutral islands in the $z=5.5$ Lyman-$\alpha$ Forest
• Reionization with galaxies and active galactic nuclei
• 21 cm signal from cosmic dawn: Imprints of spin temperature fluctuations and peculiar velocities
• Emulating Simulations of Cosmic Dawn for 21cm Power Spectrum Constraints on Cosmology, Reionization, and X-ray Heating
• The first power spectrum limit on the 21-cm signal of neutral hydrogen during the Cosmic Dawn at z=20-25 from LOFAR
• Constraining the intergalactic medium at $z\approx$ 9.1 using LOFAR Epoch of Reionization observations
• Deep learning from 21-cm tomography of the Cosmic Dawn and Reionization
• HI Fluctuations at Large Redshifts: I--Visibility correlation
• 21CMMC with a 3D light-cone: the impact of the co-evolution approximation on the astrophysics of reionisation and cosmic dawn
• SCORCH I: The Galaxy-Halo Connection in the First Billion Years
• Analysing the 21cm signal from the Epoch of Reionization with artificial neural networks
• Emulation of reionization simulations for Bayesian inference of astrophysics parameters using neural networks
• Tight Constraints on the Excess Radio Background at $z=9.1$ from LOFAR
• IGM damping wing constraints on reionisation from covariance reconstruction of two $z\gtrsim 7$ QSOs
• PAPER-64 Constraints On Reionization II: The Temperature Of The z=8.4 Intergalactic Medium
• Interpreting LOFAR 21-cm signal upper limits at z~9.1 in the context of high-z galaxy and reionisation observations
• A New Constraint on Reionization from Evolution of the Ly$\alpha$ Luminosity Function at $z\sim 6-7$ Probed by a Deep Census of $z=7.0$ Ly$\alpha$ Emitter Candidates to 0.3 $L^{\ast }$
• The Evolution of the Lyman-Alpha Luminosity Function During Reionization
• Chasing the Tail of Cosmic Reionization with Dark Gap Statistics in the Ly$\alpha$ Forest over $5<z<6$
• LAGER Ly$\alpha$ Luminosity Function at $z\sim 7$, Implications for Reionization
• Hydrodynamic Response of the Intergalactic Medium to Reionization
• Exploring reionisation and high-z galaxy observables with recent multi-redshift MWA upper limits on the 21-cm signal
• The Sherwood-Relics simulations: overview and impact of patchy reionization and pressure smoothing on the intergalactic medium
• The Ly$\alpha$ Luminosity Function and Cosmic Reionization at $z\sim$ 7.0: a Tale of Two LAGER Fields
• The Equation of State of the Intergalactic Medium After Hydrogen Reionization
• Spatial fluctuations of the intergalactic temperature-density relation after hydrogen reionization
• Studying the Lyman-$\alpha$ optical depth fluctuations at $z\sim 5.5$ using fast semi-numerical methods
• Constraining the state of the intergalactic medium during the Epoch of Reionization using MWA 21-cm signal observations
• CHORUS II. Subaru/HSC Determination of the Ly$\alpha$ Luminosity Function at $z=7.0$: Constraints on Cosmic Reionization Model Parameter
• Constraining High Redshift X-ray Sources with Next Generation 21 cm Power Spectrum Measurements
• Spectroscopic observation of Ly$\alpha$ emitters at z~7.7 and implications on re-ionization
• Photon number conservation and the large-scale 21 cm power spectrum in semi-numerical models of reionization
• Constraining the second half of reionization with the Lyman-$\beta$ forest
• Minimum size of 21-cm simulations
• Constraints on the End of Reionization from the Density Fields Surrounding Two Highly Opaque Quasar Sightlines
• A deep learning model to emulate simulations of cosmic reionization
• Exploring the cosmic 21-cm signal from the Epoch of Reionisation using the Wavelet Scattering Transform
• Constraints on the temperature of the intergalactic medium at z=8.4 with 21-cm observations
• Improving constraints on the reionization parameters using 21-cm bispectrum
• A Short Introduction to Reionization Physics
• Anomaly in the Opacity of the Post-Reionization Intergalactic Medium in the Ly$\alpha$ and Ly$\beta$ Forest
• Dark-ages reionization & galaxy formation simulation V: morphology and statistical signatures of reionization
• New EoR Power Spectrum Limits From MWA Phase II Using the Delay Spectrum Method and Novel Systematic Rejection
• Tracing the Sources of Reionization in Cosmological Radiation Hydrodynamics Simulations
• Probing the thermal history during reionization using a semi-numerical photon-conserving code SCRIPT
• Photon Number Conserving Models of H II Bubbles during Reionization
• CMB constraints on a physical model of reionization
• ARTIST: Fast radiative transfer for large-scale simulations of the epoch of reionisation
• Improved supervised learning methods for EoR parameters reconstruction
• The impact of non-Gaussianity on the Epoch of Reionization parameter forecast using 21-cm power spectrum measurements
• Constraining the reionization and thermal history of the Universe using a semi-numerical photon-conserving code SCRIPT
• SCORCH. III. Analytical Models of Reionization with Varying Clumping Factors
• PINION: Physics-informed neural network for accelerating radiative transfer simulations for cosmic reionization
• Probing Patchy Reionization with the Void Probability Function of Lyman-$\alpha$ Emitters

Cited by in corpus (4)

• Prospects of FRBs and Large Scale 21 cm Power Spectra in Constraining the Epoch of Reionization
• Accelerating HI density predictions during the Epoch of Reionization using a GPR-based emulator on N-body simulations
• Exploring Machine Learning Regression Models for Advancing Foreground Mitigation and Global 21cm Signal Parameter Extraction
• Accelerating reionization constraints: An ANN-emulator framework for the SCRIPT Semi-numerical Model