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Probing dark matter and the expansion history of the Universe with Lyman-alpha in absorption

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If you have a question about this talk, please contact Pau Figueras .

The Lyman-alpha forest in QSO absorption spectra is a sensitive probe of the matter distribution as well as the physical state of the Intergalactic Medium. I will present constraints on the mass of (warm) dark matter particles and discuss the ionization state of the Intergalactic Medium at $z>5$. I will further discuss prospects of measuring the redshift drift and improving constraints on the variability of fundamental constants with the ultra-stable high-resolution spectrograph proposed for the ESO -ELT.

This talk is part of the Theoretical Physics Colloquium series.

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SG1 Alison Richard Building, 7 West Road, Cambridge Lecture Theatre O, Engineering Department, Trumpington Street Faculty of Education, Hills Road, Cambridge, CB2 8PQ

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