Constraining the EoR model parameters with the 21cm bispectrum

Abstract

We perform a Fisher analysis to estimate the expected constraints on the Epoch of Reionization (EoR) model parameters (i.e., minimum virial temperature, the ionizing efficiency and the mean free path of ionizing photons) taking into account the thermal noise of the exisitting telescopes, MWA and LOFAR. We consider how the inclusion of the 21cm bispectrum improves the constraints compared to using the power spectrum alone. Assuming that we perfectly remove the foreground, we found that the bispectrum, which is calculated by the 21cmFAST code, can constrain the EoR model parameters more tightly than the power spectrum since the bispectrum is more sensitive to the EoR model parameters than the power spectrum. We also found that degeneracy between the EoR model parameters can be broken by combining the bispectrum with the power spectrum.

11 pages, 7 figures, accepted in MNRAS

References in corpus (20)

• Five-Year Wilkinson Microwave Anisotropy Probe (WMAP) Observations: Cosmological Interpretation
• Cosmology at Low Frequencies: The 21 cm Transition and the High-Redshift Universe
• Observational constraints on Cosmic Reionization
• Hydrogen Epoch of Reionization Array (HERA)
• Efficient Simulations of Early Structure Formation and Reionization
• 21CMMC: an MCMC analysis tool enabling astrophysical parameter studies of the cosmic 21 cm signal
• Accelerated Evolution of Ly$\alpha$ Luminosity Function at $\text{z}\gtrsim 7$ Revealed by the Subaru Ultra-Deep Survey for Ly$\alpha$ Emitters at $\text{z}=7.3$
• 21 cm signal from cosmic dawn: Imprints of spin temperature fluctuations and peculiar velocities
• Multi-redshift limits on the 21cm power spectrum from PAPER
• An analytic model for the bispectrum of galaxies in redshift space
• Fisher Matrices and Confidence Ellipses: A Quick-Start Guide and Software
• Constraining High Redshift X-ray Sources with Next Generation 21 cm Power Spectrum Measurements
• Sensitivity for 21cm Bispectrum from Epoch of Reionization
• Studying topological structure in the epoch of reionization with 3D-Minkowski functionals of 21cm line fluctuations
• Studying 21cm power spectrum with one-point statistics
• The Difference PDF of 21-cm Fluctuations: A Powerful Statistical Tool for Probing Cosmic Reionization
• Probing the first galaxies with the SKA
• Expected constraints on models of the epoch of reionization with the variance and skewness in redshifted 21cm-line fluctuations
• Constraining the Contribution of Galaxies and Active Galactic Nuclei to Cosmic Reionization
• Japanese Cosmic Dawn/Epoch of Reionization Science with the Square Kilometre Array

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• Signatures of Cosmic Reionization on the 21cm 2- and 3-point Correlation Function I: Quadratic Bias Modeling
• 21cmfish: Fisher-matrix framework for fast parameter forecasts from the cosmic 21-cm signal
• The impact of non-Gaussianity on the Epoch of Reionization parameter forecast using 21-cm power spectrum measurements
• Reionisation & Cosmic Dawn Astrophysics from the Square Kilometre Array: Impact of Observing Strategies
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• Modelling the post-reionization neutral hydrogen ($\mathrm{HI}$) 21-cm bispectrum
• Investigating X-ray sources during the epoch of reionization with the 21 cm signal
• Exploring the cosmic dawn and epoch of reionization with 21cm line
• The Impact of Realistic Foreground and Instrument Models on 21cm Epoch of Reionization Experiments
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• Detectability of 21cm-signal during the Epoch of Reionization with 21cm-Lyman-α emitter cross-correlation. II. Foreground contamination
• SKA-Low Intensity Mapping Pathfinder Updates: Deeper 21 cm Power Spectrum Limits from Improved Analysis Frameworks
• Redshifted 21-cm bispectrum: Impact of the source models on the signal and the IGM physics from the Cosmic Dawn
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• The 21-cm bispectrum from neutral hydrogen islands at z < 6
• PINION: Physics-informed neural network for accelerating radiative transfer simulations for cosmic reionization
• Observing the redshifted 21 cm signal around a bright QSO at $z\sim 10$
• Analysing the Epoch of Reionization with three-point correlation functions and machine learning techniques
• SKATR: A Self-Supervised Summary Transformer for SKA
• Analyzing the 21cm forest with Wavelet Scattering Transform: Insight into non-Gaussian features of the 21cm forest
• The Impact of ionization Morphology and X-ray Heating on the Cosmological 21cm Skew Spectrum
• Skew spectrum and smoothed skewness of 21-cm signals from epoch of reionization
• The variance of dispersion measure of high-redshift transient objects as a probe of ionized bubble size during reionization
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• From ANN to BNN: Inferring Reionization Parameters using Uncertainty-aware Emulators of 21-cm Summaries
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