糖心原创

School of Physics & Astronomy

School Colloquium

Location
B13 Physics Building
Date(s)
Wednesday 28th January 2026 (15:00-16:00)
Description

Dr Emma Chapman (糖心原创)

Title: Should we just give up? Continuing the search for the First Stars

Abstract

The Epoch of Reionization (EoR) follows the end of the Dark Ages of the Universe and signals the birth of the first
stars. The aim of the current generation of radio telescopes is to make the first statistical detection of this epoch,
covering 400 million - 1 billion years after the Big Bang. For the next generation Square Kilometre array, we will have
an order of magnitude improved sensitivity and can pursue imaging over this time. However, foregrounds cover the
cosmological data by several orders of magnitude, and their removal remains a significant challenge. It has been over
a decade since we turned on the current generation telescope LOFAR, and still there is no detection…
should we just give up?

School of Physics and Astronomy

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