Forecasts on the Dark Energy and Primordial Non-Gaussianity Observations with the Tianlai Cylinder Array

Abstract

The Tianlai experiment is dedicated to the observation of large scale structures (LSS) by the 21 cm intensity mapping technique. In this paper we make forecasts on its capability at observing or constraining the dark energy parameters and the primordial non-Gaussianity. From the LSS data one can use the baryon acoustic oscillation (BAO) and the growth rate derived from the redshift space distortion (RSD) to measure the dark energy density and equation of state. The primordial non-Gaussianity can be constrained either by looking for scale-dependent bias in the power spectrum, or by using the bispectrum. Here we consider three cases: the Tianlai cylinder array pathfinder which is currently being built, an upgrade of the pathfinder array with more receiver units, and the full-scale Tianlai cylinder array. Using the full-scale Tianlai experiment, we expect ${\sigma }_{w_0}\sim 0.082$ and ${\sigma }_{w_a}\sim 0.21$ from the BAO and RSD measurements, ${\sigma }_{{\mathrm{f}}_{\mathrm{NL}}}^{\mathrm{local}}\sim 14$ from the power spectrum measurements with scale-dependent bias, and ${\sigma }_{{\mathrm{f}}_{\mathrm{NL}}}^{\mathrm{local}}\sim 22$ and ${\sigma }_{{\mathrm{f}}_{\mathrm{NL}}}^{\mathrm{equil}}\sim 157$ from the bispectrum measurements.

Accepted for publication in ApJ

References in corpus (10)

• A test of the nature of cosmic acceleration using galaxy redshift distortions
• Measurement of 21 cm brightness fluctuations at z ~ 0.8 in cross-correlation
• The bispectrum of galaxies from high-redshift galaxy surveys: primordial non-Gaussianity and non-linear galaxy bias
• Primordial non-Gaussianity, scale-dependent bias, and the bispectrum of galaxies
• Differentiating dark energy and modified gravity with galaxy redshift surveys
• The bispectrum of redshifted 21-cm fluctuations from the dark ages
• The Physics and Early History of the Intergalactic Medium
• Fast simulations for intensity mapping experiments
• Forecasting the Dark Energy Measurement with Baryon Acoustic Oscillations: Prospects for the LAMOST surveys
• Non-Gaussianity and Excursion Set Theory: Halo Bias

Cited by in corpus (38)

• MIGHTEE-HI: The HI emission project of the MeerKAT MIGHTEE survey
• Prospects for Constraining Interacting Dark Energy Models with 21 cm Intensity Mapping Experiments
• Precise measurements of inflationary features with 21 cm observations
• The Tianlai Dish Pathfinder Array: design, operation and performance of a prototype transit radio interferometer
• Prospects for measuring the Hubble constant and dark energy using gravitational-wave dark sirens with neutron star tidal deformation
• A path to precision cosmology: synergy between four promising late-universe cosmological probes
• New method for initial density reconstruction
• Studying high-z galaxies with [CII] intensity mapping
• Prospects for measuring dark energy with 21 cm intensity mapping experiments: A joint survey strategy
• Probing primordial non-Gaussianity with the power spectrum and bispectrum of future 21cm intensity maps
• Prospects for measuring dark energy with 21 cm intensity mapping experiments
• Data Processing Pipeline For Tianlai Experiment
• Beam Measurements of the Tianlai Dish Radio Telescope using an Unmanned Aerial Vehicle
• Extracting HI Astrophysics from Interferometric Intensity Mapping
• The Electromagnetic Characteristics of the Tianlai Cylindrical Pathfinder Array
• A Semi-blind PCA-based Foreground Subtraction Method for 21 cm Intensity Mapping
• Detecting the HI Power Spectrum in the Post-Reionization Universe with SKA-Low
• Forecasting the Cross-Correlation of the CSST galaxy survey with the FAST HI Intensity Map
• Eliminating polarization leakage effect for neutral hydrogen intensity mapping with deep learning
• Constraining Cosmic Inflation with Observations: Prospects for 2030
• HI intensity mapping with the MIGHTEE survey: power spectrum estimates
• Reflections and Standing Waves on the Tianlai Cylinder Array
• HI intensity mapping with MeerKAT: forecast for delay power spectrum measurement using interferometer mode
• 1/f Noise Analysis for FAST HI Intensity Mapping Drift-Scan Experiment
• 21-cm foreground removal using AI and frequency-difference technique
• A Fast Transient Backend to Detect FRBs with the Tianlai Dish Pathfinder Array
• Elucidating Dark Energy with Future 21 cm Observations at the Epoch of Reionization
• Fast Simulation of Cosmological Neutral Hydrogen based on the Halo Model
• Prospects for cosmological research with the FAST array: 21-cm intensity mapping survey observation strategies
• FAST Drift Scan Survey for HI Intensity Mapping. II. Stacking-based Beam Construction of the 19-feed Array at $1.4$ GHz
• AlgoSCR: An algorithm for Solar Contamination Removal from radio interferometric data
• Squeezing information from radio surveys to probe the primordial Universe
• Exploring HI Galaxy Redshift Survey Strategies for the FAST Core Array Interferometry
• A New Wavelet Scattering Transform-Based Statistic for Cosmological Analysis of Large-Scale Structure
• Needlets and foreground removal for SKAO hydrogen intensity maps
• HI Intensity Mapping cross-correlation with thermal SZ fluctuations: forecasted cosmological parameters estimation for FAST and Planck
• An Overview of CHIME, the Canadian Hydrogen Intensity Mapping Experiment
• Beamforming in Interferometer Arrays with Cross-couplings