Uncovering the First Stars

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• Emma Chapman (Imperial College London)
• Friday 26 May 2017, 13:00-14:00
• Physics West 117.

If you have a question about this talk, please contact Sean McGee.

The Epoch of Reionization (EoR) signals the end of the Dark Ages of the Universe and the birth of the first stars. The race is on to make the first statistical detection of this epoch however the foregrounds swamp the cosmological data by several orders of magnitude and their removal remains a significant challenge for both current and future telescopes. I will speak broadly about the foreground mitigation techniques currently being used with EoR data, with a focus on blind source separation techniques. Overcoming the challenges such as the huge foregrounds has not been merely an inconvenience on the way to the prize … The Square Kilometre Array (SKA) is due to be built in 2019 and it is vital we embed the lessons learned from the current EoR experiments before the design of the instrument is finalised. I will introduce the software OSKAR that I have helped develop in order to simulate EoR data, such that we can test design options and truly exploit the incredible power of the SKA .

This talk is part of the Astrophysics Talks Series series.

This talk is included in these lists:

• Astrophysics Talks Series
• Bham Talks
• Physics West 117
• What's on in Physics?

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