Title: Lyman-alpha data as a probe of dark matter interactions

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Abstract:
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Despite its remarkable success, the standard LCDM paradigm has been challenged lately by significant tensions between different datasets. This has reinvigorated interest in beyond-LCDM models, such as dark matter interacting either with standard model particles or with an additional dark sector. These interactions result in a suppression of the matter power spectrum on small scales, making them an ideal target to be constrained with Lyman-alpha data. In this talk I will discuss a method to use Lyman-alpha data that does not need the usual computationally-expensive hydrodynamical simulations. I will present recent bounds for dark radiation interactions, and show that there are reasonable hints for non-zero interactions between dark matter and neutrinos.