About Me

I am a theoretical cosmologist in the Department of Physics at Southern Methodist University. My group uses a new observational technique called line intensity mapping to explore subjects ranging from the large-scale structure of the universe to the interstellar media of high-redshift galaxies. Our work mainly focuses on modeling signals for upcoming intensity mapping experiments, developing new analysis techniques to extract useful physics from them, and analyzing and interpreting their data as it becomes available.

Office

Fondren Science Building
Rm 113

Email

pbreysse [at] smu.edu

PDF CV

Download

Education

Johns Hopkins University

Ph.D. in Physics and Astronomy • May 2017

Penn State University

B.S. in Physics, B.S. in Astronomy & Astrophysics • May 2012

Research History

Center for Cosmology and Particle Physics, New York University

James Arthur Postdoctoral Fellow • September 2020 - August 2024

Canadian Institute for Theoretical Astrophysics, University of Toronto

Postdoctoral Fellow • September 2017 - August 2020

Kamionkowski Group, Johns Hopkins University Department of Physics and Astronomy

Graduate Research Assistant • June 2012 - August 2017

Publications

Pubilcations

Full lists of my publications can be found on NASA ADS, inSPIRE, and arXiv

Experiments

COMAP

The Carbon Monoxide Mapping Array Pathfinder seeks to map star-forming gas during the era of galaxy assembly around redshift 3 through intensity mapping of CO lines. Science observations began in 2019 at the Owens Valley Radio Observatory. Future upgrades will allow mapping of CO lines during the Epoch of Reionization. I have been leading the COMAP science and modeling working group since 2018.

CCAT-prime

CCAT-prime, currently under construction in the Atacama, will among other interesting science make maps of CII emission during the Epoch of Reionization. I am a member of the CCATp Science Working Group.

EXCLAIM

EXCLAIM is a balloon-based intensity mapping experiment seeking to measure CII at redshift 3 and various CO transitions at lower redshifts in cross-correlation with BOSS galaxy maps. EXCLAIM is currently under construction at the NASA Goddard Space Flight Center. I am a member of the EXCLAIM science and analysis team.