Mikel Arteta celebrates scoring his penalty
Mikel Arteta's penalty secured a third consecutive Premier League victory for Arsenal for the first time since March.
Arouna Kone wasted the Latics' best chance when he broke clear but failed to hit the target in the first-half, reports the BBC.
Arteta scored from the spot just before the hour after Jean Beausejour was penalised for a challenge on Theo Walcott, who again played as a striker.
Wigan have lost six of their last eight games and are in the bottom three at Christmas for the third straight year.