Does Astar have its own token?

I'm curious to know, does the Astar network have its own dedicated token? This is a crucial aspect for many crypto enthusiasts and investors as tokens often play a pivotal role in the ecosystem's functioning and growth. If Astar does have a token, I'd like to understand its purpose, how it's used within the network, and whether it's essential for participation or can simply be utilized as a means of exchange. Understanding the tokenomics and role of the token in the Astar ecosystem would provide valuable insights for potential investors and users alike.