Brendan P. Crill

Comparing the Near-infrared Spectral Energy Distributions from Different Stellar Population Synthesis Models with SPHEREx Observations

Abstract While stellar population synthesis (SPS) models have been widely used for spectral analysis in optical wavelengths, their characteristics remain uncertain in the near-infrared (NIR) due to a relative lack of observed NIR spectra. The spectrophotometric data from SPHEREx...

Observations of Atmospheric Helium and Oxygen With SPHEREx

Abstract We present measurements of near‐infrared (NIR) terrestrial airglow produced by helium and oxygen in the exosphere as observed by the Spectro‐Photometer for the History of the Universe, Epoch of Reionization, and ices Explorer (SPHEREx). Using 8 months of survey data obta...