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SEMINAR: Let There Be Light: The Observational Quest for the First Galaxies

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Today's date is Saturday, January 23, 2021
Let There Be Light: The Observational Quest for the First Galaxies : A seminar by Prof. Richard Ellis (European Southern Observatory/University College London) as part of the de Laeter colloquium series (joint ICRAR/CASS event) Other events...
The first billion years after the Big Bang represent the final observational frontier in assembling a coherent picture of cosmic history. During this period early stars and galaxies formed and the Universe became bathed in ultraviolet light. Hydrogen in the intergalactic medium also transitioned from a neutral gas to one that was fully ionized. How and when did this `cosmic reionisationí occur and were star-forming galaxies the primary agents? Recent measurements by the Planck satellite suggest reionisation occurred later than originally envisaged and this raises the exciting prospect that we may be able to directly observe the first galaxies. Deep exposures with Hubble provides evidence that star-forming galaxies were present during the relevant period. Spectroscopy is now required to address these important questions. I will review the rapid progress being made with current facilities, and the prospects with the James Webb Space Telescope and the ELT.
Speaker(s) Prof. Richard Ellis
Location Woolnough Lecture Theatre - Geology Department GGGL: [ 107]
Contact Luca Cortese <[email protected]>
URL https://www.icrar.org/de-laeter-colloquium/june2017/
Start Mon, 12 Jun 2017 15:00
End Mon, 12 Jun 2017 16:00
Submitted by Luca Cortese <[email protected]>
Last Updated Mon, 05 Jun 2017 15:59
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