Dynamical Dark Energy in Light of Cosmic Distance Measurements.I.A Demonstration Using Simulated Datasets

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外文摘要：We develop methods to extract key dark energy information from cosmic distance measurements including the BAO scales and supernova(SN)luminosity distances.Demonstrated using simulated data sets of the complete DESI,LSST and Roman surveys designed for BAO and SN distance measurements,we show that using our method,the dynamical behavior of the energy,pressure,equation of state(with its time derivative)of dark energy and the cosmic deceleration function can all be accurately recovered from high-quality data,which allows for robust diagnostic tests for dark energy models.

外文关键词：

(cosmology:)dark energy(cosmology:)large-scale structure of universe(cosmology:)cosmic background radiation(cosmology:)cosmological parameters

作者：

Gan Gu、Xiaoma Wang、Xiaoyong Mu、Shuo Yuan、Gong-Bo Zhao

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作者单位：

National Astronomical Observatories,Chinese Academy of Sciences,Beijing 100101,China

University of Chinese Academy of Sciences,Beijing 100049,China

Institute for Frontiers in Astronomy and Astrophysics,Beijing Normal University,Beijing 102206,China

基金：

National Key R & D Program of ChinaNational Key R & D Program of ChinaNational Natural Science Foundation of China(NSFC)National Natural Science Foundation of China(NSFC)CAS Project for Young Scientists in Basic ResearchNational Natural Science Foundation of China(NSFC)science research grants from the China Manned Space Project withNew Cornerstone Science Foundation through the XPLORER prize

项目编号：

2023YFA16078002023YFA16078031192530311890691YSBR-09212203062CMS-CSST-2021-B01

出版年：

2024

DOI：

10.1088/1674-4527/ad3f57

天文和天体物理学研究

中国科学院国家天文台

天文和天体物理学研究

CSTPCD

影响因子：0.406

ISSN：1674-4527

年,卷(期)：2024.24(6)