Hi, I'm Julian. Welcome to my page!

I am a long-term Clay fellow at the Harvard-Smithsonian Center for Astrophysics. Before that I was a postdoctoral fellow in Jefferson Lab, also at Harvard, working with Cora Dvorkin and Avi Loeb. I got my PhD from Johns Hopkins University, under the supervision of Marc Kamionkowski.

Recently, I have been working on 21-cm cosmology, both as a new dark-matter probe and as a standard ruler (using velocity-induced acoustic oscillations, or VAOs). My interests also include inflation, gravitational lensing, fast radio bursts, dark matter, large-scale structure, neutrino masses, and the cosmic microwave background.

You can find my full CV here, and my publications in



Feel free to contact me at

julianmunoz AT fas.harvard.edu