no code implementations • 7 Jan 2021 • Xingchen Zhou, Yan Gong, Xian-Min Meng, Xin Zhang, Ye Cao, Xuelei Chen, Valeria Amaro, Zuhui Fan, Liping Fu
This indicates that the neural network method is feasible and powerful for spec-z and photo-z estimations in future cosmological surveys.
Photometric Redshift Estimation
Cosmology and Nongalactic Astrophysics
no code implementations • 1 Jul 2020 • Zizhao He, Xinzhong Er, Qian Long, Dezi Liu, Xiangkun Liu, Ziwei Li, Yun Liu, Wenqaing Deng, Zuhui Fan
Using the latter training set, about 67\% of the aforementioned 48 candidates are also found, and there are 11 more new strong lensing candidates identified.
Cosmology and Nongalactic Astrophysics
1 code implementation • 29 Jan 2020 • Zhao Chen, Yu Yu, Xiangkun Liu, Zuhui Fan
We apply the inverse-Gaussianization method proposed in \citealt{arXiv:1607. 05007} to fast produce weak lensing convergence maps and investigate the peak statistics, including the peak height counts and peak steepness counts, in these mocks.
Cosmology and Nongalactic Astrophysics