NGC 3603 stacked nebular spectrum

A necessary ingredient in understanding the star formation history of a young cluster is knowledge of the extinction towards the region. This has typically been done by making...要厘清年轻星团的恒星形成历史，一项核心必要条件是掌握该观测天区的消光(extinction)信息。过往此类研究通常通过开展……来完成。