论文标题
M17区域中对年轻大型巨星NGC 6618的伽马射线观察
Gamma-ray observation towards the young massive star cluster NGC 6618 in the M17 region
论文作者
论文摘要
年轻的大型集群已被确定为新的伽马射线来源和潜在的宇宙射线(CR)加速器。在本文中,我们报告了在年轻明星群集NGC 6618附近的伽马射线排放的发现,该恒星群集是我们银河系中最年轻的恒星簇之一。检测到的伽马射线排放可以分为两个组件。一个组件类似点状,揭示了更难的频谱,而另一个则延长了且频谱较软。这样的光谱特征与其他年轻的大型簇有显着不同,可能是由于NGC 6618中CRS加速的繁殖效应所致。
Young massive clusters have been established as a new population of gamma-ray sources and potential cosmic ray (CR) accelerators. In this paper, we report the detection of gamma-ray emissions near the young star cluster NGC 6618, which is one of the youngest star clusters in our Galaxy. The detected gamma-ray emissions can be divided into two components. One component is point-like and reveals harder spectrum, while the other is extended and with softer spectrum. Such spectral features are significantly different from other young massive clusters and may be due to the propagation effects of CRs accelerated in NGC 6618.