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Vid Iršič: Small scale structure of the IGM: A Dark Matter Tale

Date: 22. 6. 2018
Source: Astrodebate
V četrtek, 28. junija ob 12. uri, bo imel Vid Iršič (Univerza v Washingtonu, ZDA) Astrodebato o medgalaktični snovi. Predavanje bo v predavalnici F2 v stavbi na Jadranski 19. Vljudno vabljeni!

Small scale structure of the IGM: A Dark Matter Tale

 

Vid Iršič

Department of Astronomy, University of Washington

 

The intergalactic medium (IGM) plays a unique role in constraining the (small scale) matter clustering in the Universe, since the low-density, high redshift IGM filaments are particularly sensitive to the small scale properties of darkmatter. The main observable manifestation of the IGM, the Lyman-alpha forest, has provided important constraints on the linear matter power spectrum, especially when combined with cosmic microwave background data. This includes, most notably, the tightest constraints on warm dark matter (WDM) and fuzzy dark matter (FDM) models, that I will present in this talk. I will also present some resent constraints on general non-CDM models, using the same data.