This is the website for Prof. Jacob Bean's group in the Department of Astronomy & Astrophysics at the University of Chicago. The main theme of the group's research is the observational study of planets outside the Solar System ("exoplanets"). We use ground- and space-based telescopes to detect and characterize these worlds. We are also building new instruments as part of our push towards identifying other Earth-like planets.


10/23/2020: Group member Adina Feinstein's paper about flares on young stars in TESS data is the subject of a University of Chicago news story.

04/30/2020: First results from radial velocity stability test data taken in December, 2019 show that MAROON-X is achieving 1 m/s precision on sky for M dwarfs. See the figure on the right and the Gemini webpage for more information.

01/25/2020: Megan Mansfield's paper on the inference of H2 dissociation and recombination energy transport for KELT-9b from a Spitzer phase curve is now published. See the paper and the associated NASA news story. See also the paper by Wong et al. on the TESS phase curve for this planet.