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.
We have just published two papers with the results from an intensive study of the hot Jupiter WASP-43b using HST.
Paper 1 (Stevenson et al.) presents the first phase-resolved emission spectroscopy of an exoplanet. See the paper at Science Express
or a preprint here
. In particular, check out the movie
showing an animation of the emission spectra and brightness temperature maps as a function of phase.
Paper 2 (Kreidberg et al.) presents a precise determination of the water abundance in the planet's atmosphere. See the paper at ApJ Letters
or a preprint (with supplementary figures) here
STScI press release
discussing the results for a lay audience
Former undergrad Hannah Diamond-Lowe's paper, which shows that the atmosphere of HD209458b likely does not have a thermal inversion, is now available: arXiv:1409.5336