The Impact of Early Massive Galaxy Formation on the Cosmic Microwave Background The Cosmic Microwave Background (CMB) anisotropies, corrected for foreground effects, form the foundation of cosmology and support the Big Bang model. A previously overlooked foreground component is t...

A wee thread on a paper I think has big holes and some suggestions for grad students out there looking for a fun calculation... (Technical) 🔭 🧪 #cosmology It's this one; it claims at least 1% of the photons in the CMB are actually generated in early-forming galaxies. 1/N arxiv.org/abs/2505.04687

A Search for "New Physics'' "Beyond the Standard Model'' in Open Data with Machine Learning In this new era of large data, it is important to make sure we do not miss any signs of new physics. Using the publicly-available open data collected by the arXiv.org experiment in the \texttt{hep-ph}...

arxiv.org/abs/2503.22790

Un boricua estudiando el universo.

First book of the year: Done ✅
@astrokatie.com didn't fail to reignite that curiosity I had as a kid. A book worth reading regardless of your background in physics!

At the airport reading 😁 @astrokatie.com

1/N. Why antiparticles exist (a thread)

Heading to Michigan for this year’s PIKIMO meeting!

I hope this is a first-order transition

This is going to be perfect for a gift!