Exploring Primordial Non-Gaussianity Measurements in the CSST Spectroscopic Survey

arXiv:2606.18744 · astro-ph.CO · Submitted 2026-06-17 · Read on arXiv

Jiangnan Duan, Yan Gong, Qi Xiong, Xuelei Chen, Qi Guo, Ming Li, Yun Liu, Wenxiang Pei

astro-ph.CO

Submitted: 2026-06-17

Comments: 13 pages, 7 figures, 2 tables

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Bispectrum — 47× in this paper · explained in 3 episodes
• Non-Gaussianity — 9× in this paper · explained in 2 episodes
• Primordial non-Gaussianity — 7× in this paper · explained in 2 episodes
• Clustering — 5× in this paper · explained in 2 episodes
• Accuracy — 3× in this paper · explained in 1 episode
• Chinese Space-station Survey Telescope — 3× in this paper
• Higher-order statistics — 2× in this paper · explained in 2 episodes
• Markov Chain Monte Carlo — 2× in this paper
• Velocity Dispersion — 2× in this paper · explained in 2 episodes
• AGN — 1× in this paper · explained in 1 episode
• Calibration — 1× in this paper · explained in 7 episodes
• Dark Energy Spectroscopic Instrument — 1× in this paper
• Degeneracy — 1× in this paper · explained in 3 episodes
• Redshift-Space Distortions (RSD) — 1× in this paper · explained in 2 episodes
• Signal-to-noise ratio (SNR) — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes

Sources

• Testing Inflation with Large Scale Structure: Connecting Hopes with Reality
• Large-Scale Structure of the Universe and Cosmological Perturbation Theory
• Constraints on Multi-Field Inflation from the BOSS Galaxy Survey
• Constraining primordial non-Gaussianity with DESI 2024 LRG and QSO samples
• Planck 2018 results. IX. Constraints on primordial non-Gaussianity
• Euclid preparation: Testing multi-field inflation with galaxy power spectrum and bispectrum
• The clustering of galaxies in the SDSS-III Baryon Oscillation Spectroscopic Survey: RSD measurement from the power spectrum and bispectrum of the DR12 BOSS galaxies
• The Jiutian simulations for the CSST extra-galactic surveys
• Forecasting the BAO Measurements of the CSST galaxy and AGN Spectroscopic Surveys
• Non-Linear Evolution of the Bispectrum of Cosmological Perturbations
• Cosmology and the Bispectrum
• Wide-Field InfrarRed Survey Telescope-Astrophysics Focused Telescope Assets WFIRST-AFTA 2015 Report

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