Forecast of Neutrino Cosmology from the CSST Photometric Galaxy Clustering and Cosmic Shear Surveys

Abstract

China Space Station Telescope (CSST) is a forthcoming powerful Stage IV space-based optical survey equipment. It is expected to explore a number of important cosmological problems in extremely high precision. In this work, we focus on investigating the constraints on neutrino mass and other cosmological parameters under the model of cold dark matter with a constant equation of state of dark energy ($w$CDM), using the mock data from the CSST photometric galaxy clustering and cosmic shear surveys (i.e. 3$\times$2pt). The systematics from galaxy bias, photometric redshift uncertainties, intrinsic alignment, shear calibration, baryonic feedback, non-linear, and instrumental effects are also included in the analysis. We generate the mock data based on the COSMOS catalog considering the instrumental and observational effects of the CSST, and make use of the Markov Chain Monte Carlo (MCMC) method to perform the constraints. Comparing to the results from current similar measurements, we find that CSST 3$\times$2pt surveys can improve the constraints on the cosmological parameters by one order of magnitude at least. We can obtain an upper limit for the sum of neutrino mass $\Sigma m_{\nu }\lesssim 0.36$ (0.56) eV at 68\% (95\%) confidence level, and $\Sigma m_{\nu }\lesssim 0.23$ (0.29) eV at 68\% (95\%) confidence level if ignore the baryonic effect, which is comparable to the {\it Planck} results and much better than the current photometric surveys. This indicates that the CSST photometric surveys can provide stringent constraints on the neutrino mass and other cosmological parameters, and the results also can be further improved by including data from other kinds of CSST cosmological surveys.

15 pages, 13 figures, 2 tables. Accepted for publication in MNRAS

References in corpus (7)

• COSMOS Photometric Redshifts with 30-bands for 2-deg2
• Dark Energy Survey Year 3 Results: Cosmology from Cosmic Shear and Robustness to Modeling Uncertainty
• HMcode-2020: Improved modelling of non-linear cosmological power spectra with baryonic feedback
• The Effect of Thermal Neutrino Motion on the Non-linear Cosmological Matter Power Spectrum
• Analytic Prediction of Baryonic Effects from the EFT of Large Scale Structures
• A hydrodynamical halo model for weak-lensing cross correlations
• Cosmic tomographies: baryon acoustic oscillations and weak lensing

Cited by in corpus (12)

• Synergy between CSST galaxy survey and gravitational-wave observation: Inferring the Hubble constant from dark standard sirens
• CSST Cosmological Emulator I: Matter Power Spectrum Emulation with one percent accuracy to k = 10 h/Mpc
• Exploring Mirror Twin Higgs Cosmology with Present and Future Weak Lensing Surveys
• Future Cosmology: New Physics and Opportunity from the China Space Station Telescope (CSST)
• Fisher forecast for the BAO measurements from the CSST spectroscopic and photometric galaxy clustering
• Quasi-2D Weak Lensing Cosmological Constraints Using the PDF-SYM method
• Weak Lensing Constraints on Dark Matter-Baryon Interactions with $N$-Body Simulations and Machine Learning
• Parameterization of Stochasticity in Galaxy Clustering and Reconstruction of Tomographic Matter Clustering
• Challenges in Cosmic Magnification Reconstruction by Magnification Response
• HI Intensity Mapping cross-correlation with thermal SZ fluctuations: forecasted cosmological parameters estimation for FAST and Planck
• Synergy between CSST and third-generation gravitational-wave detectors: Inferring cosmological parameters using cross-correlation of dark sirens and galaxies
• The Hydrostatic Mass Bias and the ${\sigma }_8$ Tension: A Multi-Probe Forecast for Stage-IV/V Surveys