17–19 Oct 2023
AlbaNova Main Building
Europe/Stockholm timezone

Is the JWST Hinting Towards a Cosmological Model Beyond the Standard?

18 Oct 2023, 17:30
20m
FR4 (AlbaNova Main Building)

FR4

AlbaNova Main Building

Roslagstullsbacken 21, 114 21 Stockholm

Speaker

Dr Sambit Kumar Giri (Stockholm University, Nordita)

Description

The epoch of reionisation marks the emergence of the first galaxies that emit light into the intergalactic medium, leading to the ionisation and heating of the Universe. This phase is a forefront area in astrophysics. While our current understanding relies on theoretical models of early galaxy formation within the standard cold dark matter (CDM) cosmology, recent observations, including early galaxy data from the James Webb Space Telescope (JWST) and the thermal evolution of intergalactic gas from the Experiment to Detect the Global EoR Signature (EDGES), have raised questions about this conventional view. I will present our initial testing of models using JWST observations of early galaxies.

Primary author

Dr Sambit Kumar Giri (Stockholm University, Nordita)

Presentation materials