a: quasar ~
b: flashlight beam
What:
"The light from the quasar is like a flashlight beam, and in this case we were lucky that the flashlight is pointing toward the nebula and making the gas glow. We think this is part of a filament that may be even more extended than this, but we only see the part of the filament that is illuminated by the beamed emission from the quasar."
Useful?
Writer: Sebastiano Cantalupo
LCC:
Where:
Date: Oct 7 2014 10:24 AM
# 6446 Critique Analogy