The move we understand will be formally announced on Tuesday morning via social media with Aubameyang having signed an 18-month deal.
Aubameyang left Arsenal as a free agent, meaning that there was no rush to announce the switch.
Barcelona are expected to announce and unveil him at 9.30am on Tuesday.
Aubameyang flew to Spain on Monday morning, with no agreement reached between both clubs springing up confusion.
The 32-year-old’s family is based in the spain, but touched down to the surprise of all.
The departure brings an end to his four-year career at the Emirates since he arrived from Borussia Dortmund.
Aubameyang Arsenal’s £350,000-per-week deal with Arsenal was to expire summer.
Arsenal let their Auba go on a free due to the saving they would make in wages.
