The first publication of this project has been accepted. Please check out the published article in PASA.

The Team

The Team Members


Trevor Butrum


I am a graduate student at the University of Louisville with a BSc in Astronomy and Astrophysics. I have a strong interest in dust in galaxies and have worked on a few small projects pertaining to this topic. This project has been a recent interest of mine and I look forward to growing it further with additional pairs from LSST, Euclid, and SPHEREx.


Benne Holwerda


I am a Associate Professor at the University of Louisville interested in dust in galaxies, galaxy morphology, high redshift galaxies, and more. You may know me as the author of "Source Extractor for Dummies".


William Keel (NGC 3314)


As an astronomer especially interested in galaxies, I have made a practice of getting photons wherever I can, having made appearances at Kitt Peak, Cerro Tololo, La Palma, La Silla, the MMT, the 6-meter Bolshoi Teleskop Azimutal'nyi, the IRTF, and the VLA. I have become pretty multispectral, using data from Voyager 2, IUE, IRAS, Einstein, ROSAT, ISO, UIT, HST, Chandra, GALEX, and FUSE. These data support studies of the effects of interactions on galaxies, the history of galaxy merging, triggering of star formation and nuclear activity in galaxies, and too many other projects that have struck my fancy. With this background, joining the team of the Galaxy Zoo project was only natural; much of my most interesting recent research has grown out of this project. In the more socially respectable part of my job, I teach at the University of Alabama; mostly introductory astronomy courses with occasional forays into extragalactic astronomy and observational techniques at the graduate level. Unlike many professional astronomers, I got my start in the back yard many years ago and retain a soft spot for eyeballing the Universe.