The 3rd Shanghai Assembly on Cosmology and Structure Formation

Session

Cosmology 4

Nov 19, 2025, 11:00 AM

Tianwen Hall

Conveners

Cosmology 4

• Yuting Wang (National Astronomical Observatories, CAS)

90. JUST

Prof. Xiaohu Yang (Shanghai Jiao Tong University)

11/19/25, 11:00 AM

Talk

92. No Evidence for a Dynamically Evolving Dark Energy Scenario: Tomographic Alcock–Paczy´nski Test with Redshift-Space Correlation Function II

Prof. Changbom Park (Korea Institute for Advanced Study)

11/19/25, 11:30 AM

Talk

We apply an extended Alcock–Paczyński (AP) test to the SDSS data to constrain the dark energyequation of state with the Chevallier–Polarski–Linder (CPL) parametrization. The extended AP test method uses the full shape of redshift-space two-point correlation funcion (CF) as the standard shape in order to measure the expansion history of the universe. We calibrate the standard shape by using the...

76. Determination of cosmological parameters by DES using type-Ia supernovae, BAO, and weak lensing observables

Prof. Ramon Miquel (IFAE)

11/19/25, 12:00 PM

Cosmology and Large-scale Structure

Talk

The DES Collaboration observed 5000 sq. deg. of the southern sky during six years and measured the position on the sky, photometric redshift and shape of about 200 million galaxies, while simultaneously measuring the light curves of over 1500 type-Ia supernovae (SNe). With these two unprecedented samples, DES has determined cosmological parameters related to the expansion of the universe using...