Hi there!

I am Joanne Tan ORCID logo, a PhD researcher based at the Max Planck Institute for Astrophysics, located just ~25 minutes away from the heart of Munich, Germany. Here, I work with Dr. Thorsten Naab on topics broadly related to the cosmological formation and evolution of massive galaxies. My current research focuses on studying the multiphase circumgalactic medium (CGM) — we probe into metal absorption lines to trace the various phases of the CGM in cosmological simulations, in hopes of better understanding the enigmatic CGM.

Scroll along to learn more about me and my research!

Research Interests

Broadly speaking, I am interested in deepening my understanding of galaxy formation and evolution. My current research focuses on utilizing metal absorption lines to probe the CGM of simulated galaxies, as well as the IGM in cosmological simulations. I also investigate the evolution of these metal absorption lines from redshift 5 to the present, potentially illuminating the evolution of metals and/or ions across cosmic time.

Me in a nutshell

About me

Learn more about me :)

Research

Current and past projects

CV

(Updated Apr 2025)

Other than astronomy, I am also *very* passionate about good food and fun travels. I love to snap photos during my travels, and also before I devour delicious food. Check out my photo galleries below!

Travel photo gallery

Photos from my recent travels

Food photo gallery

Chronicling the noms I've enjoyed

Contact me

If you are interested in connecting with me to discuss astronomy (or food!), feel free to email me at: jtan[at]mpa-garching[dot]mpg[dot]de! Always happy to connect with people who are excited to talk about astronomy :D