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Lucia A. Perez

Computational Astrophysicist & Cosmologist

Hello and welcome! I'm Lucia.


I am a computational astrophysicist who uses machine learning, cosmological simulations, and galaxy formation models to explore the galaxy-halo connection in observable space and what it can tell us about the evolution of the universe.

I'm on the job market for a tenure track faculty position, and I would love to tell you about my research and mentoring plans!

I'm currently a postdoctoral fellow in Princeton's Future Faculty in the Physical Sciences program, and as a recently 'graduated' Flatiron Research Fellow at the Center for Computational Astrophysics, you'll often find me at the CCA if not at Princeton. My PhD is in Astrophysics from Arizona State University, where I primarily used the clustering of galaxies to explore things like the evolution of Lyman-alpha emitters and the pace and extent of reionization.

Ongoing and Recent Projects




Learning the Universe with CAMELS-SAM


I'm co-leading the LtU Connections working group, to make the first end-to-end data set that goes from initial conditions + cosmology --> realistic galaxies in observable space.




Improving Primordial non-Gaussianity Constraints by Modeling Galaxy Formation


an example of how my simulation and analysis framework helps us do "better cosmologies with better galaxies"




CosmoBench: A Cosmology Benchmark for Geometric Deep Learning


A very interesting project connecting cosmologists at the Center for Computational Astrophysics with graph experts at the Center for Computational Mathematics! Featuring the merger trees from my CAMELS-SAM simulation suite. Accepted to NeurIPS 2025!


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Beyond Research


Diversity, Equity, Inclusion

My own journey to where I am; and how I work to make science accessible, welcoming, and fair for everyone.


Mimi's Milestones

or, how to socialize a semiferal rescue that's spent most of her life hiding from all cats and people

Curious for an update on the semiferal, wallflower cutie patootie I adopted July 2024? You're in the right place!


Outreach & Education

Talks, trips, and programs I've taken part in to share astronomy and science with more people. Would you like me to come talk to a group or class? Please contact me, I would probably love to!


Teaching

Covering notable leadership positions and teaching experience

Notable Extracurriculars


Aug 1, 2025

"Self Interacting Dark Matter" : a cosmo-psychological thriller in 9 minutes

I co-created a short film! Alongside filmmaker Na'ama Keha as part of SYMBIOSIS 2025 (funded by the Simons Foundation, and coordinated with Labocine for the Science New Wave) Creating this film was such a fascinating and exciting experience--I learned... (Link)


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Jun 15, 2023

Commencement remarks on facing what comes next

What an incredible honor to be asked to speak at my high school's commencement! Writing these remarks was a very retrospective and healing experience in many ways, and I think gives a really great sense of what I value and what I am like. (And to brag ...


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Contact


Lucia A. Perez
PhD, Astrophysics


Center for Computational Astrophysics

Flatiron Institute

162 E 5th Ave, New York NY 10010


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