The new atmosphere would not decay for a long time. If you had some way to generate atmosphere at all, at any rate (let's call this "magic") you would be able to maintain it indefinitely with the same "magic". Probably not even running continuously, you'd just give it periodic refills like you charge your car AC.
The new atmosphere would not decay for a long time. If you had some way to generate atmosphere at all, at any rate (let's call this "magic") you would be able to maintain it indefinitely with the same "magic". Probably not even running continuously, you'd just give it periodic refills like you charge your car AC.
It's not about how fast it decays, it's that it does so st all. Unfixable radiation hazard right there.