Principal Investigator: David Kipping

David Kipping wrote his PhD thesis on the subject of exomoon detection theory at University College London and has single-authored numerous papers on the topic. David devised two new methods to detect exomoons in the form of TDV-V and TDV-TIP (velocity and transit-impact-parameter induced transit duration variations, respectively). These tools are critical in assessing a moon’s mass and sense of orbital motion (prograde or retrograde).

David is now an Assistant Professor at Columbia University, where the HEK project servers perform round the clock automated searches for exomoons.

email: d.kipping AT
visit david's website

Co-Investigator: Gáspár Bakos

Assoc. Prof. Bakos of Princeton University founded the HATNet project (Hungarian Automated Telescope NETwork), which is one the most successful transiting planet hunting surveys to date. Gáspár’s expertise range from instrumentation, to programming, from observations to theory and we are fortunate to have these talents for HEK.

visit gáspár’s website

Co-Investigator: Lars Buchhave

Dr. Lars Buchhave, based at the Neils Bohr Institute in Copenhagen, obtains stellar spectra for the HEK project as well as his own projects. These spectra are then used to refine the stellar parameters and look for the stellar wobble caused by the presence of a planet. By combining this data with the Kepler photometry, HEK can not only confirm candidates, but also dynamically measure the masses and radii of the entire system.

visit lars’ website

Co-Investigator: Joel Hartman

Joel is an Associate Research Scholar at Princeton and has been instrumental in the success of the HAT project, founded by Prof. Bakos. Joel has recently begun investigating novel non-parametric methods to look for exomoons and provides invaluable support in the interpretation of light curve signals, as well characterizing the host stars.

visit joel’s website

Co-Investigator: Chelsea (Xu) Huang

Chelsea is a graduate student at Princeton University interested in the analysis Kepler light curve data. Chelsea has developed an independent processing pipeline of the Kepler data which HEK uses in certain cases to vet moon candidate signals. This independent check, including pixel-level diagnostics, allows us to verify potential signals are astrophysical rather than instrumental in nature.

Co-Investigator: David Nesvorný

Based at the Southwest Research Institute in Colorado, Dr. David Nesvorny is a dynamist who has written pivotal papers in fields ranging from Kuiper belt objects to moons, from exoplanets to asteroids. David’s expertise is crucial to the HEK project. Frequently, the dynamical perturbations which can signal the presence of a moon could also be confused with a perturbing planet. David will interrogate the hypothesis of a perturbing planet in such cases, to help us understand the true nature of the planetary system.

visit david’s website

Co-Investigator: Allan Schmitt

Allan Schmitt joined the HEK project via This dedicated group of non-professional astronomers inspect Kepler light curves for signs of other planets not found by the automated planet-hunting tools of Kepler. In a similar vein, Allan leads the visual inspection effort on these data for exomoon signals. Exomoon signals are much trickier to spot than new planets but a trained and patient human eye is a powerful tool.

email: aschmitt AT

Co-Investigator: Guillermo Torres

Located at the Harvard-Smithsonian Center for Astrophysics, Guillermo Torres is a world renown expert in the analysis and validation of planetary transits and the determination of accurate stellar parameters who joined the HEK project in fall 2014. These expertise aid the HEK project greatly, providing a second check as to the nature of candidate signals and also providing physical parameters for the star which affects the planet and moon terms too.