Efficient exploration of reionization parameters for the upcoming 21 cm observations using a photon conserving semi-numerical model SCRIPT
arXiv:2211.12909 · doi:10.1093/mnras/stad791
Abstract
One of the most promising probes to constrain the reionization history of the universe is the power spectrum of neutral hydrogen 21 cm emission fluctuations. The corresponding analyses require computationally efficient modelling of reionization, usually achieved through semi-numerical simulations. We investigate the capability of one such semi-numerical code, SCRIPT, to constrain the reionization parameters. Our study involves creating a mock data set corresponding to the upcoming SKA-Low, followed by a Bayesian inference method to constrain the model parameters. In particular, we explore in detail whether the inferred parameters are unbiased with respect to the inputs used for the mock, and also if the inferences are insensitive to the resolution of the simulation. We find that the model is successful on both fronts. We also develop a simple template model of reionization which can mimic the complex physical processes like inhomogeneous recombinations and radiative feedback and show that it can recover the global reionization history reliably with moderate computational cost. However, such simple models are not suitable for constraining the properties of the ionizing sources. Our results are relevant for constraining reionization using high-quality data expected in future telescopes.
arXiv commentAccepted for publication in MNRAS
References in corpus (80)
- Planck 2015 results. XIII. Cosmological parameters
- Cosmological parameters from CMB and other data: a Monte-Carlo approach
- 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
- An excursion set model of hierarchical clustering: Ellipsoidal collapse and the moving barrier
- Multi-scale initial conditions for cosmological simulations
- 21-cm Tomography of the Intergalactic Medium at High Redshift
- 21cmFAST: A Fast, Semi-Numerical Simulation of the High-Redshift 21-cm Signal
- Cobaya: Code for Bayesian Analysis of hierarchical physical models
- Hydrogen Epoch of Reionization Array (HERA)
- The Growth of HII Regions During Reionization
- 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 Precision Array for Probing the Epoch of Reionization: 8 Station Results
- Simulating Cosmic Reionization at Large Scales I: the Geometry of Reionization
- What Next-Generation 21 cm Power Spectrum Measurements Can Teach Us About the Epoch of Reionization
- 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 from LOFAR
- Inferring the astrophysics of reionization and cosmic dawn from galaxy luminosity functions and the 21-cm signal
- Probing Beyond the Epoch of Hydrogen Reionization with 21 Centimeter Radiation
- 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
- 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
- Cosmic Dawn (CoDa): the First Radiation-Hydrodynamics Simulation of Reionization and Galaxy Formation in the Local Universe
- 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
- A Sensitivity and Array-Configuration Study for Measuring the Power Spectrum of 21cm Emission from Reionization
- First Results from HERA Phase I: Upper Limits on the Epoch of Reionization 21 cm Power Spectrum
- Simulating cosmic reionization: How large a volume is large enough?
- Inside-out or Outside-in: The topology of reionization in the photon-starved regime suggested by Lyman-alpha forest data
- The Baryon Acoustic Oscillation Broadband and Broad-beam Array: Design Overview and Sensitivity Forecasts
- HERA Phase I Limits on the Cosmic 21-cm Signal: Constraints on Astrophysics and Cosmology During the Epoch of Reionization
- On using visibility correlations to probe the HI distribution from the dark ages to the present epoch I: Formalism and the expected signal
- Fast Large Volume Simulations of the 21 cm Signal from the Reionization and pre-Reionization Epochs
- Improving the Epoch of Reionization Power Spectrum Results from Murchison Widefield Array Season 1 Observations
- Large fluctuations in the hydrogen-ionizing background and mean free path following the epoch of reionization
- Probing the thermal state of the intergalactic medium at with the transmission spikes in high-resolution Ly 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
- 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 9.1 using LOFAR Epoch of Reionization observations
- Reionization on Large Scales I: A Parametric Model Constructed from Radiation-Hydrodynamic Simulations
- How does radiative feedback from a UV background impact reionization?
- Anticipated Performance of the Square Kilometre Array -- Phase 1 (SKA1)
- 21CMMC with a 3D light-cone: the impact of the co-evolution approximation on the astrophysics of reionisation and cosmic dawn
- Analysing the 21cm signal from the Epoch of Reionization with artificial neural networks
- On the use of semi-numerical simulations in predicting the 21-cm signal from the epoch of reionization
- Emulation of reionization simulations for Bayesian inference of astrophysics parameters using neural networks
- Tight Constraints on the Excess Radio Background at from LOFAR
- 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
- The Impact of a Percolating IGM on Redshifted 21 cm Observations of Quasar HII Regions
- Cosmological HII Bubble Growth During 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
- Constraining the state of the intergalactic medium during the Epoch of Reionization using MWA 21-cm signal observations
- Photon number conservation and the large-scale 21 cm power spectrum in semi-numerical models of reionization
- Detecting ionized bubbles in redshifted 21 cm maps
- A tale of two sites -- II: Inferring the properties of minihalo-hosted galaxies with upcoming 21-cm interferometers
- Implicit Likelihood Inference of Reionization Parameters from the 21 cm Power Spectrum
- Minimum size of 21-cm simulations
- Epoch of Reionisation 21cm Forecasting From MCMC-Constrained Semi-Numerical Models
- Constraints on the temperature of the intergalactic medium at z=8.4 with 21-cm observations
- A Short Introduction to Reionization Physics
- 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
- Improved treatments of the ionizing photon mean free path in semi-numerical simulations of reionization
- Improved supervised learning methods for EoR parameters reconstruction
- Extracting the 21-cm Power Spectrum and the reionization parameters from mock datasets using Artificial Neural Networks
- Constraining the reionization and thermal history of the Universe using a semi-numerical photon-conserving code SCRIPT
- The multi-frequency angular power spectrum in parameter studies of the cosmic 21-cm signal
- Suppressing variance in 21-cm signal simulations during reionization
Cited by in corpus (5)
- Exploring the likelihood of the 21-cm power spectrum with simulation-based inference
- Prospects of FRBs and Large Scale 21 cm Power Spectra in Constraining the Epoch of Reionization
- Simulating the epoch of Helium Reionization in photon-conserving semi-numerical code SCRIPT
- Nearest Neighbour-Based Statistics for 21cm-Galaxy Cross-Correlations in the Epoch of Reionization
- Simulation based inference of the ionization history from the 2D 21 cm power spectrum