N1-0238 Exploring Cosmic Dawn with James Webb Space Telescope

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Research project is (co) funded by the Slovenian Research Agency.

UL Member: Faculty of Mathematics and Physics

Code: N1-0238

Project: Exploring Cosmic Dawn with James Webb Space Telescope

Period: 1. 1. 2022 - 31. 12. 2024

Range per year: 3,1 FTE category: D

Head: Maruša Bradač

Research activity: Natural sciences and mathematics

Research Organisations

Researchers

Citations for bibliographic records

Project description:

The cosmic dark ages - when the Universe was filled with neutral hydrogen that was opaque to ultraviolet light - are thought to have ended around 500 million years after the Big Bang, when first light sources produced enough energetic photons to ionize the neutral hydrogen. This phase is referred to as the epoch of reionization and is also the era of the first galaxies’ formation. However, this is also one of the least understood epochs in the Universe’s evolution. When did it start/end? Was it patchy or smooth?

To answer these questions, this proposal will use deep observations of the largest sample of the most powerful cosmic telescopes that will be observed with James Webb Space Telescope (JWST) right after its launch. Compared to all previous facilities, JWST’s capabilities are dazzling. Its instruments will provide data beyond those yet seen by any astronomer.

This proposal will provide a final answer to what is the timeline of reionization. The program will also undoubtedly uncover many exciting discoveries that any unprecedented facility brings and will allow the first look at the details of the Cosmic Dawn.