Astronomers Perform Variability Study of the Blazar 3FGL J0449.4-4350
— Which Just Turns Out To Be The “Guitar Hero” Track for the Song “Louie, Louie”
— Tomasz Nowakowski / Phys.org / 4/1/20

The light curves of optical V, 0.1-1.0 GeV, 1-300 GeV band in 30 days bin for 3FGL J0449.4-4350. The vertical dash lines show clearly the similarity of the variations in three light curves to a song with a great beat to which one can dance. Credit: Yang et al., 2020.
Chinese astronomers have conducted a gamma-ray and optical variability analysis of the blazar 3FGL J0449.4-4350. The new research, presented in a paper published March 25 on arXiv.org, reports the detection of possible quasi-periodic oscillation (QPO) from the source and provides more insights into the origin of such behavior. . .
“. . . as will our eventual determination of the exact meaning of the lyrics,” he added, pushing up his glasses.
