Zobrazeno 1 - 10
of 791
pro vyhledávání: '"WANG, Junchao"'
We propose a new cosmological model that considers dark matter as a barotropic fluid with a constant equation of state parameter and interprets dark energy as the phenomenological emergent dark energy rather than a cosmological constant. This proposa
Externí odkaz:
http://arxiv.org/abs/2406.03936
Publikováno v:
JCAP09(2024)053
The unified dark fluid model unifies dark matter and dark energy into a single component, providing an alternative and more concise framework for interpreting cosmological observations. We introduce a PAge-like Unified Dark Fluid (PUDF) model based o
Externí odkaz:
http://arxiv.org/abs/2405.05798
Autor:
Huang, Zhiqi, Liu, Jianqi, Mo, Jianfeng, Su, Yan, Wang, Junchao, Yao, Yanhong, Yu, Guangyao, Zhu, Zhengxin, Li, Zhuoyang, Liu, Zhenjie, Miao, Haitao, Tong, Hui
Joint analysis of the baryon acoustic oscillations (BAO) measurement by the Dark Energy Spectroscopic Instrument (DESI) first data release, Type Ia supernovae (SNe) of the Dark Energy Survey Year 5 (DES5YR) release and cosmic microwave background (CM
Externí odkaz:
http://arxiv.org/abs/2405.03983
Publikováno v:
Research in Astronomy and Astrophysics, 24:045001 (6pp), 2024
We develop a Python tool to estimate the tail distribution of the number of dark matter halos beyond a mass threshold and in a given volume in a light-cone. The code is based on the extended Press-Schechter model and is computationally efficient, typ
Externí odkaz:
http://arxiv.org/abs/2311.02866
Much of the research in supernova cosmology is based on an assumption that the peak luminosity of type Ia supernovae (SNe Ia), after a standardization process, is independent of the galactic environment. A series of recent studies suggested that ther
Externí odkaz:
http://arxiv.org/abs/2303.15267
Autor:
Yang, Liu1,2 (AUTHOR), Wang, Junchao1,2 (AUTHOR), Liu, Tingting3,4 (AUTHOR), He, Hanze3,4 (AUTHOR), Li, Xinyu3,4 (AUTHOR), Zhang, Xinglai1 (AUTHOR) zhangxl@imr.ac.cn, Li, Jing3,4 (AUTHOR) lijing1@mail.neu.edu.cn, Li, Song3 (AUTHOR) lis@atm.neu.edu.cn, Liu, Baodan3,4 (AUTHOR) liubaodan@mail.neu.edu.cn
Publikováno v:
Small Structures. Nov2024, Vol. 5 Issue 11, p1-12. 12p.
The standard $\Lambda$CDM model is recently reported to deviate from the high-redshift Hubble diagram of type Ia supernovae (SNe) and quasars (QSOs) at $\sim4\sigma$ confidence level. In this work, we combine the PAge approximation (a nearly model-in
Externí odkaz:
http://arxiv.org/abs/2210.02816
Autor:
Xu, Wucheng, Zheng, Xiaoqing, Wang, Junchao, Wang, Weiwei, Shen, Yanbin, Yuan, Xingfei, Dong, Shilin, Zhou, Deliang, Fang, Shaowen, Qian, Zengzhi
Publikováno v:
In Journal of Building Engineering 1 December 2024 98
Publikováno v:
In Heliyon 15 October 2024 10(19)
Publikováno v:
In Expert Systems With Applications 15 October 2024 252 Part A