I am a postdoctoral researcher in the Galaxies and Cosmology department at the Max Planck Insitute for Astronomy. in Heidelberg, Germany. Previously, I did my PhD in Princeton University and my undergraduate studies in University College London.
My research focuses on using the Lyman-alpha forest absorption in the line-of-sight to distant quasars to study the intergalactic medium and associated large-scale structure. Currently, I am working with the Baryonic Oscillations Sky Survey (BOSS) an ambitious project to obtain Lyman-alpha forest spectra for over 150,000 quasars.
The picture below visualizes the spatial coverage of 80,000 BOSS Data Release 9 quasar sightlines - the small dot in the center is Earth. The bulk of the sightlines cover redshifts between 2 and 3, corresponding to an era just 3 billions years after the Big Bang. Studying the absorption in these sightlines provide insights into the processes by which the intergalactic medium is ionized and heated --- this has important implications on the star-formation and galaxy-formation history of the Universe.
Courtesy David Kirkby, UC Irvine
Max Planck Institute for Astronomy
Email: lee at mpia.de
Phone: +49 (0)6221-528 476