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 engaged in building new instruments as part of our push towards eventually identifying other Earth-like planets.
for a recent talk summarizing some of the group's research.
As part of our HARPS Solar Twin Planet Search we have discovered a star with evidence of planet engulfment that also hosts two planet candidates. See the U. Chicago press release
and the paper
(Melendez, Bedell, Bean, et al., A&A in press).
Using a full night of Keck time, we have precisely characterized the Kepler-11 host star and revised the densities of the planets in this benchmark system. Our results also point towards a tension in the stellar density as derived from transit timing variations (TTVs) and spectroscopic + isochrone analysis. See paper
(Bedell et al., AJ submitted).
The core spectrograph for MAROON-X arrived at U. Chicago earlier this month. The instrument will be unpacked and re-assembled over the next six weeks.