About me
Learn more about me :)
Hi there!
I am Joanne Tan 
, 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.
- Here is a list of keywords related to my research interests:
- the circumgalactic medium (CGM)
- absorption line studies (especially metals)
- galaxy formation and evolution
- galaxy dynamics and kinematics
- machine learning applications in astronomy
- statistical inference from large astronomical datasets
Me in a nutshell
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