Dr. Ellingson's research includes multi-wavelength studies of galaxy cluster to map their galaxy, gas and dark matter distributions. Specific programs include searches for high redshift clusters using optical and infrared techniques, and X-ray observations to constrain the evolution of baryonic gas and cosmological parameters. She also leads two programs that actively involve undergraduate students in observations and analysis of large datasets. The Kilo-Degree Extremely Little Telescope exoplanet search team at Sommers Bausch Observatory, and a data analysis team for the SPIRITS program to search for transient objects in nearby galaxies, using the Las Cumbres Observatory Global Telescope Network.
extragalactic astronomy, galaxy clusters, cosmology, optical and infrared observations, spectroscopy, X-ray observations, high redshift galaxies, archaeoastronomy