I am a Ramón y Cajal research fellow working at the Centro de Investigaciones Eneréticas Medioambientales y Tecnológicas (CIEMAT), located at Ciudad Universitaria of Madrid. I am a cosmologist, which means I study the Universe as whole: its origin, evolution, content and physics. My field of expertise is the Large-Scale Structure (LSS) of the Universe and cosmological simulations. I study and model how galaxies distribute in space and what information we can extract from galaxy surveys in order to better understand our Universe. Appart from research, I am active in outreach.

Research

Here I outline the fields and subfields my research touches on. Go to Research for further details.

Key words:

• Large-Scale Structure
• Cosmological Simulations
• Galaxy Surveys
• Observational Cosmology
• Dark Energy
• Galaxy Formation and Evolution
• Dark Matter
• Inflation

Main interests/expertise:

• Galaxy Clustering (GC)
• Baryonic Accoustic Oscillations (BAO)
• N-Body Simulations
• Fast cosmological simulations
• Primordial Non-Gaussianities (PNG)
• The galaxy - dark matter connection and Halo Occupation Distribution model (HOD)

Other Interests:

• HI Instensity Mapping
• Redshift Space Distortions (RSD)
• Semi-Analytical Models of Galaxy formation
• Hydrodynamical simulations
• Weak Lensing (WL)
• Cross-Correlations, multi-probe and multi-tracers

International Collaborations

Current challenges in cosmology require the coherent effort of the entire community to be addressed. That is why a large portion of nowadays ground-breaking research is performed within large international collaborations, often with hundreds of scientist involved. This is the list of collaborations in which I have been actively involved:

• Dark Energy Survey (DES) Since 2021, I have been one of the two conveners of the Large Scale Structure (LSS) Science Working Group (SWG), in charge of Galaxy Clustering (GC), during the anaysis of the final dataset (Year-6 or Y6). As such, I was in charge of the BAO Key Project (KP) and the cosmological analysis of BAO in combination with Supernovae. Our group was algso in charge of providing the GC products for the 3x2pt (combined GC & WL) KP analysis and of other science projects related to GC such us the study of Primordial Non-Gaussianitties. Additionally, I was involved in the DES LSS anaysis since Y1, when I led the BAO mock catalogues.

• extended Baryonic Oscillation Spectroscopic Survey (eBOSS) / SDSS-IV I performed the Halo Occupation Distribution analysis for Emission Line Galaxies (link) and I was involved in the ELG and general cosmology analsysis.

• Euclid. I am currently one of the leads of the “Simulated data challenges” Work Package. Involved in the Simulations and Galaxy clustering SWG.

• Square Kilometer Array (SKA) I studied the viability and methodology of measuring BAO with SKA HI intensity mapping program in presence of observational (foreground and telescop beam) effects.

• Dark Energy Spectroscopic Instrument (DESI). I’ve been leeading the generation of state-of-the-art PNG imulations for DESI. I am also involved in the Lyman alpha DR2/DR3 analysis.

• UNIT simulations (UNITsims) I participated in the UNITsim-Galaxies project. I have led the PNG-UNITsim project (abstracts 2021-3; 2022-2; 2022-3; 2023-1).

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If you are a student who would like to start a project (BSc, MSc, PhD, TFM, TFG, …) on these topics, please, contact me.