Speaker
Shouvik Roychoudhury
(Academia Sinica Institute of Astronomy and Astrophysics)
Description
Based on arXiv: 2409.13022 (published in ApJ Letters). We update constraints on cosmological parameters in a 12-parameter model, which extends the standard 6-parameter ΛCDM to include dynamical dark energy and massive neutrinos, along with other new parameters. We use the latest Planck PR4 (2020) likelihoods, DESI DR1 BAO, and the latest uncalibrated type Ia Supernovae (SNe) datasets. In this talk, I will discuss the implications for dynamical dark energy in such an extended model, and at the same time, provide robust bounds on neutrino masses which will be useful for the astro- and particle physics communities. I will also discuss the current status of the weak lensing tension and the Hubble tension in this extended cosmology.
Authors
Shouvik Roychoudhury
(Academia Sinica Institute of Astronomy and Astrophysics)
Dr
Teppei Okumura
(Academia Sinica Institute of Astronomy and Astrophysics)
