6 papers
HIcosmo: a differentiable JAX-based framework for cosmology inference
Jing-Zhao Qi, Jing-Fei Zhang, Xin Zhang
The Stage IV cosmological surveys, such as Euclid, LSST, DESI, and SKA, will deliver observational data of unprecedented volume, calling for efficient and reliable inference tools.…
Gravitational wave standard sirens from GWTC-3 combined with DESI DR2 and DESY5: A late-universe probe of the Hubble constant and dark energy
Ji-Yu Song, Guo-Hong Du, Tian-Nuo Li +4
Recently, the combination of the Dark Energy Spectroscopic Instrument (DESI) Data Release 2 (DR2) baryon acoustic oscillation (BAO) data and the Planck cosmic microwave background…
Testing the cosmic distance duality relation with baryon acoustic oscillations and supernovae data
Tian-Nuo Li, Guo-Hong Du, Peng-Ju Wu +3
One of the most fundamental relationships in modern cosmology is the cosmic distance duality relation (CDDR), which describes the relationship between the angular diameter distance…
Combining strongly lensed and unlensed fast radio bursts: To be a more precise late-universe probe
Ji-Guo Zhang, Yi-Fan Jiang, Ze-Wei Zhao +3
The Macquart relation and time-delay cosmography are now two promising ways to fast radio burst (FRB) cosmology. In this work, we propose a joint method that combines strongly lens…
Model-independent within FLRW: Joint constraints from GWTC-3 standard sirens and strong lensing time delays
Ji-Yu Song, Jing-Zhao Qi, Jing-Fei Zhang +1
We use 47 gravitational-wave (GW) standard sirens from the third Gravitational-Wave Transient Catalog to calibrate distances in the strong gravitational lensing (SGL) system RXJ113…
Testing the Cosmic Distance Duality Relation Using Strong Gravitational Lensing Time Delays and Type Ia Supernovae
Jing-Zhao Qi, Yi-Fan Jiang, Wan-Ting Hou +1
We present a comprehensive test of the cosmic distance duality relation (DDR) using a combination of strong gravitational lensing (SGL) time delay measurements and Type Ia supernov…