Lucia A. Perez

Computational Astrophysicist & Cosmologist

About Lucia

Lucia is an astrophysicist who uses machine learning, cosmological simulations, and galaxy formation models to explore the galaxy-halo connection and what it can tell us about the evolution of the universe. She is currently a Flatiron postdoctoral Fellow  at the Flatiron Institute's Center for Computational Astrophysics, and also a  fellow in Princeton's Future Faculty in the Physical Sciences program. Her Ph.D. in Astrophysics is from Arizona State University, where she primarily used the clustering of galaxies to explore things like the evolution of Lyman-alpha emitters and the pace and extent of reionization.

***Want to work with me? Send me an email! And apply to the CCA's predoctoral program if you're a PhD student: ***

Some Ongoing Projects

Expanding CAMELS-SAM to explore the galaxy-halo connection

I created 1000 N-body only simulations, ran them through the Santa Cruz SAM, measured lots of galaxy clustering, and fed it all to deep neural networks to try and predict the input parameters! What's next?

Learning the Universe

Bringing my experience and time to LtU's training set generation, implicit likelihood inference, and advanced forward modeling working groups..

The Halo Occupation of LAGER foreground Emission Line Galaxies

While catching z=6.9 LAEs, LAGER also finds a lot of low-redshift galaxies with strong emission in Hα and [OIII]; what can their clustering tell us about their halo occupation?

Random Publications

The CAMELS project: public data release

Francisco Villaescusa-Navarro, Shy Genel, Daniel Anglés-Alcázar, Lucia A. Perez, Pablo Villanueva-Domingo, Digvijay Wadekar, Helen Shao, Faizan G. Mohammad, Sultan Hassan, Emily Moser, Erwin T. Lau, Luis Fernando Machado Poletti Valle, Andrina Nicola, Leander Thiele, Yongseok Jo, Oliver H. E. Philcox, Benjamin D. Oppenheimer, Megan Tillman, ChangHoon Hahn, Neerav Kaushal, Alice Pisani, Matthew Gebhardt, Ana Maria Delgado, Joyce Caliendo, Christina Kreisch, Kaze W.K. Wong, William R. Coulton, Michael Eickenberg, Gabriele Parimbelli, Yueying Ni, Ulrich P. Steinwandel, Valentina La Torre, Romeel Dave, Nicholas Battaglia, Daisuke Nagai, David N. Spergel, Lars Hernquist, Blakesley Burkhart, Desika Narayanan, Benjamin Wandelt, Rachel S. Somerville, Greg L. Bryan, Matteo Viel, Yin Li, Vid Irsic, Katarina Kraljic, Mark Vogelsberger

Constraining cosmology with machine learning and galaxy clustering: the CAMELS-SAM suite

Lucia A. Perez, Shy Genel, Francisco Villaescusa-Navarro, Rachel S. Somerville, Austen Gabrielpillai, Daniel Anglés-Alcázar, Benjamin D. Wandelt, L. Y. Aaron Yung

New spectroscopic confirmations of Lyman-α emitters at z ∼ 7 from the LAGER survey

Santosh Harish, Isak G. B. Wold, Sangeeta Malhotra, James Rhoads, Weida Hu, Junxian Wang, Zhen-ya Zheng, L. Felipe Barrientos, Jorge González-López, Lucia A. Perez, Ali Ahmad Khostovan, Leopoldo Infante, Chunyan Jiang, Cristóbal Moya-Sierralta, John Pharo, Francisco Valdes, Huan Yang

LtU-ILI: An All-in-One Framework for Implicit Inference in Astrophysics and Cosmology

Matthew Ho, Deaglan J. Bartlett, Nicolas Chartier, Carolina Cuesta-Lazaro, Simon Ding, Axel Lapel, Pablo Lemos, Christopher C. Lovell, T. Lucas Makinen, Chirag Modi, Viraj Pandya, Shivam Pandey, Lucia A. Perez, Benjamin Wandelt, Greg L. Bryan

arXiv e-prints, 2024 Feb, pp. arXiv:2402.05137

View all

Beyond academia

Diversity, Equity, Inclusion

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

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 & Leadership

Covering notable leadership positions and teaching experience


Lucia A. Perez

PhD, Astrophysics

Center for Computational Astrophysics

Flatiron Institute

162 E 5th Ave, New York NY 10010


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