How cold is dark matter?

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• Prof Martin Haehnelt, Institute of Astronomy, University of Cambridge
• Tuesday 24 February 2015, 19:30-20:30
• Wolfson Lecture Theatre, Department of Chemistry.

If you have a question about this talk, please contact Stanislav Fort.

The “temperature” of dark matter is very relevant for the formation of galaxies. I will discuss how the Lyman-alpha forest in high-resolution quasar absorption spectra can be used to constrain the “thermal” velocities and therefore the nature of dark matter. I will further briefly discuss the use of quasar absorption spectra to constrain the variability of fundamental constants now and in future with 30m-class telescopes like the ESO -ELT.

This talk is part of the Cambridge University Astronomical Society (CUAS) series.

This talk is included in these lists:

• Cambridge University Astronomical Society (CUAS)
• Chris Davis' list
• Cosmology, Astrophysics and General Relativity
• Guy Emerson's list
• Wolfson Lecture Theatre, Department of Chemistry

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