Astrophysical signatures of axion-like particles by Day, F

“…We further report an anomalous deficit at 3.5 keV in the spectrum of the Active Galactic Nucleus at the centre of the Perseus galaxy cluster. …”

The construction and analysis of a whole-sky map using underground muons by Giller, GL

“…A search for anomalous muon excess in the larger data-set found the largest deviation to be an excess within 1.9° degrees of Active Galactic Nucleus 3C 273. The significance of the excess was estimated to be ~ 10% and the significance of it's proximity to 3C 273 to be ~ 2%. …”