DESI

作品数：74被引量：119H指数：7
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相关机构：北京中医药大学成都中医药大学华东政法大学中国中医科学院更多>>
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Constrain the Jerk Parameters with DESI 2024 Data
《Research in Astronomy and Astrophysics》2024年第12期175-182,共8页Jia-Wei Wu Kun-Yuan Hong 
supported by the National SKA Program of China No. 2020SKA0110402;the National Natural Science Foundation of China (NSFC) general program (grant No. 12073088);the National Key R&D Program of China (grant No. 2020YFC2201600);Guangdong Basic and Applied Basic Research Foundation (grant No. 2024A1515012573)。
The deceleration coefficient q and the jerk coefficient j obtained by the Taylor expansion of the scale factor a(t)play an important role in the study of cosmology.The current value of these coefficients for a cosmolo...
关键词：(cosmology) dark energy-(cosmology) large-scale structure of universe-(cosmology )cosmological parameters 
The Quasar Candidate Catalogs of DESI Legacy Imaging Survey Data Release 9
《Research in Astronomy and Astrophysics》2022年第9期267-277,共11页Zizhao He Nan Li 
science research grants from the China Manned Space Project with No.CMS-CSST-2021-A01。
Quasars can be used to measure baryon acoustic oscillations at high redshift, which are considered as direct tracers of the most distant large-scale structures in the universe. It is fundamental to select quasars from...
关键词：galaxies:quasars:general catalogs methods:statistical 
Photometric Redshifts and Galaxy Clusters for DES DR2, DESI DR9, and HSC-SSP PDR3 Data
《Research in Astronomy and Astrophysics》2022年第6期1-21,共21页Hu Zou Jipeng Sui Suijian Xue Xu Zhou Jun Ma Zhimin Zhou Jundan Nie Tianmeng Zhang Lu Feng Zhixia Shen Jiali Wang 
supported by the National Natural Science Foundation of China(NSFC,Grant No.12120101003);Beijing Municipal Natural Science Foundation under grant 1222028;the China Manned Space Project with Nos.CMS-CSST-2021-A02 and CMS-CSST-2021-A04;supported by NSFC under grants 11890691,11890693,11873053,12073035,12133010,11733007;the National Key R&D Program of China under grant 2019YFA0405501。
Photometric redshift(photoz)is a fundamental parameter for multi-wavelength photometric surveys,while galaxy clusters are important cosmological probes and ideal objects for exploring the dense environmental impact on...
关键词：GALAXIES CLUSTERS general-galaxies distances and redshifts-galaxies PHOTOMETRY 
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