what does "WAT" mean?
Welcome to Radio Galaxy Zoo, DiNapoli!
wide-angle tail; it's where the pair of jets/lobes from the core (the 'host', the galaxy with the super-massive black hole in its nucleus) do not appear as backo-to-back features, but are rather bent into two streams ('tails') that make an oblique angle (sorta).
If the tails are bent so the angle is less than ~90 degrees, the morphology (shape) is called a NAT (narrow-angled tail).
Hope this helps! 😃
by ivywong scientist, admin
Thanks heaps @JeanTate.