$\varepsilon_{ab} \equiv 1 - b/a$
like a big, juicy burger patty sizzling on the bar (describes bar regions getting stronger)
Technical definition
A parameter that measures the strength of bars within galaxies, defined as $1 - b/a$.
like a big, juicy burger patty sizzling on the bar (describes bar regions getting stronger)
A parameter that measures the strength of bars within galaxies, defined as $1 - b/a$.