Olga Garcia-Gallego

Research

My main (PhD) work has involved using numerical simulations together with Lyman-alpha forest data to test cosmological models. I would like to push this further along three directions:

• Theory: Constraining dark matter models across a broad mass range, from light dark matter candidates through the ultra-light regime, exploring the implications for the early Universe and inflation. I am also interested in model-building to incorporate the effect of these and other beyond ΛCDM models into (1) Boltzmann solvers and (2) numerical simulations.
• Data: Future Lyman-α forest data will be (available soon) with improved statistics that will allow tighter constraints to be set. Given the complementarity of measurements at other scales, I am also interested in multi-probe analyses with other large-scale structure probes.
• Emulation: More datasets and more models will require a robust tool that leverages expensive hydrodynamical simulations to marginalize over astrophysics.

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