Seminario
- https://fst.unife.it/it/eventi/seminario-13
- Seminario
- 2025-10-20T11:30:00+02:00
- 2025-10-20T12:30:00+02:00
- Testing DDE and Constraining high-z reionization with Cosmological Data Speaker: Hanyu Cheng (Tsung-Dao Lee Inst., Shanghai)
-
Quando
il 20/10/2025 dalle 11:30 alle 12:30
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Testing DDE and Constraining high-z reionization with Cosmological Data Speaker: Hanyu Cheng (Tsung-Dao Lee Inst., Shanghai)
Il giorno 20 ottobre alle ore 11,30 presso l'aula 412, Hanyu Cheng (Tsung-Dao Lee Inst., Shanghai) terra' un seminario dal titolo
Testing DDE and Constraining high-z reionization with Cosmological Data
Abstract
I will present two cosmological studies: (1) Extending ΛCDM with dynamical dark energy via Taylor-expanded pressure parameterization; showing First and Second-Order Constraints with Latest Cosmological Data. (2) Gaussian process reconstruction of reionization history from Planck CMB low_l EE data, tightly limiting high-z contributions and exotic injections like decaying dark matter (~1 MeV).
Code: https://github.com/Cheng-Hanyu/CLASS_reio_gpr.
Zoom line: https://infn-it.zoom.us/j/7834744241?pwd=sZWiNugyHbn26MP0fpe7SRdnGAgdMD.1