no code implementations • 14 Jan 2021 • Jin Qin, Fulvio Melia, Tong-Jie Zhang
We parametrize the CDDR using eta(z)=1 + eta_0 z, 1 + eta_1 z + eta_2 z^2 and 1 + eta_3 z/(1+z), and consider both the SIS and non-SIS lens models for the strong lensing.
Cosmology and Nongalactic Astrophysics
no code implementations • 1 Jul 2019 • Shi-Yu Li, Yun-Long Li, Tong-Jie Zhang
This work uses a combination of a variational auto-encoder and generative adversarial network to compare different dark energy models in light of observations, e. g., the distance modulus from type Ia supernovae.