21SSD: a public database of simulated 21-cm signals from the epoch of reionization

Abstract

The 21-cm signal from the Epoch of Reionization (EoR) is expected to be detected in the next few years, either with existing instruments or by the upcoming SKA and HERA projects. In this context there is a pressing need for publicly available high-quality templates covering a wide range of possible signals. These are needed both for end-to-end simulations of the up-coming instruments, as well as to develop signal analysis methods. In this work we present such a set of templates, publicly available, for download at https://21ssd.obspm.fr/. The database contains 21-cm brightness temperature lightcones at high and low resolution, and several derived statistical quantities for 45 models spanning our choice of 3D parameter space. These data are the result of fully coupled radiative hydrodynamic high resolution ($1024^3$) simulations performed with the LICORICE code. Both X-ray and Lyman line transfer is performed to account for heating and Wouthuysen-Field coupling fluctuations. We also present a first exploitation of the data using the power spectrum and the Pixel Distribution Function (PDF) as functions of redshifts, computed from lightcone data. We analyse how these two quantities behave when varying the model parameters while taking into account the thermal noise expected of a typical SKA survey. Finally, we show that the power spectrum and the PDF have different -- and to some extent complementary -- abilities to distinguish between different models. This opens the door to formulating an optimal sampling of the parameter space, dependant on the chosen diagnostics.

arXiv comment14 pages,12 figures. Submitted to MNRAS

References in corpus (35)

• Constraining the Evolution of the Ionizing Background and the Epoch of Reionization with z ~ 6 Quasars II: A Sample of 19 Quasars
• UV Luminosity Functions at redshifts z~4 to z~10: 10000 Galaxies from HST Legacy Fields
• Multi-scale initial conditions for cosmological simulations
• Model-independent evidence in favor of an end to reionization by z~6
• Reionization after Planck: The Derived Growth of the Cosmic Ionizing Emissivity now matches the Growth of the Galaxy UV Luminosity Density
• What Next-Generation 21 cm Power Spectrum Measurements Can Teach Us About the Epoch of Reionization
• A simulation calibrated limit on the HI power spectrum from the GMRT Epoch of Reionization experiment
• Upper limits on the 21-cm Epoch of Reionization power spectrum from one night with LOFAR
• The Global 21 Centimeter Background from High Redshifts
• X-ray Binary Evolution Across Cosmic Time
• Line Emitting Galaxies Beyond a Redshift of 7: An Improved Method for Estimating the Evolving Neutrality of the Intergalactic Medium
• Wouthuysen-Field coupling strength and application to high-redshift 21 cm radiation
• PAPER-64 Constraints on Reionization: The 21cm Power Spectrum at z=8.4
• 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
• 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
• The observable signature of late heating of the Universe during cosmic reionization
• Simulating cosmic reionization: How large a volume is large enough?
• Evidence of Gunn-Peterson damping wings in high-z quasar spectra: strengthening the case for incomplete reionization
• Cosmological Radiative Transfer Comparison Project II: The Radiation-Hydrodynamic Tests
• Empirical Covariance Modeling for 21 cm Power Spectrum Estimation: A Method Demonstration and New Limits from Early Murchison Widefield Array 128-Tile Data
• The Evolution of 21-cm Structure (EOS): public, large-scale simulations of Cosmic Dawn and Reionization
• First Limits on the 21 cm Power Spectrum during the Epoch of X-ray heating
• Non-parametric foreground subtraction for 21cm epoch of reionization experiments
• The simulated 21 cm signal during the epoch of reionization : full modeling of the Ly-alpha pumping
• Reionization by UV or X-ray sources
• Analysing the 21cm signal from the Epoch of Reionization with artificial neural networks
• PAPER-64 Constraints On Reionization II: The Temperature Of The z=8.4 Intergalactic Medium
• Constraining cosmology and ionization history with combined 21 cm power spectrum and global signal measurements
• Constraining High Redshift X-ray Sources with Next Generation 21 cm Power Spectrum Measurements
• Measuring the History of Cosmic Reionization using the 21-cm PDF from Simulations
• Distinctive rings in the 21 cm signal of the epoch of reionization
• Detailed modelling of the 21-cm Forest

Cited by in corpus (27)

• Possible interaction between baryons and dark-matter particles revealed by the first stars
• Emulation of reionization simulations for Bayesian inference of astrophysics parameters using neural networks
• The Epoch of IGM heating by early sources of X-rays
• Evaluating machine learning techniques for predicting power spectra from reionization simulations
• Charting the Parameter Space of the 21-cm Power Spectrum
• A halo model approach for the 21-cm power spectrum at cosmic dawn
• Evaluating the QSO contribution to the 21-cm signal from the Cosmic Dawn
• AMBER: A Semi-numerical Abundance Matching Box for the Epoch of Reionization
• Imprints of quasar duty cycle on the 21cm signal from the Epoch of Reionization
• X-ray ionization of the intergalactic medium by quasars
• BEoRN: A fast and flexible framework to simulate the epoch of reionisation and cosmic dawn
• A unified framework for 21cm tomography sample generation and parameter inference with Progressively Growing GANs
• 21cmFirstCLASS I. Cosmological tool for $\Lambda$CDM and beyond
• Impact of EDGES 21cm Global Signal on Primordial Power Spectrum
• Accurate modelling of the Lyman-$\alpha$ coupling for the 21-cm signal, observability with NenuFAR and SKA
• Photoevaporation of Minihalos during Cosmic Reionization: Primordial and Metal-Enriched Halos
• SKA-Low Intensity Mapping Pathfinder Updates: Deeper 21 cm Power Spectrum Limits from Improved Analysis Frameworks
• SCORCH. III. Analytical Models of Reionization with Varying Clumping Factors
• Improved upper limits on the 21-cm signal power spectrum at $z=17.0$ and $z=20.3$ from an optimal field observed with NenuFAR
• Mapping discrete galaxies at cosmic dawn with 21-centimeter observations
• Comparing sampling techniques to chart parameter space of 21 cm Global signal with Artificial Neural Networks
• Comparison of Bayesian inference methods using the Loreli II database of hydro-radiative simulations of the 21-cm signal
• Predictions of the 21cm global signal in the JWST and ALMA era
• The signature of galaxy formation models in the power spectrum of the hydrogen 21cm line during reionization
• Working towards an optimal sampling of the 21 cm signal parameter space
• A bubble size distribution model for the Epoch of Reionization
• Simulation based inference of the ionization history from the 2D 21 cm power spectrum