171206期:带喷射流的船底座尘埃柱


带喷射流的船底座尘埃柱

在一些人眼中,这像个孕育着邪恶蜜蜂的蜂巢。事实上,这张由哈勃天文望远镜拍摄所得的影像中呈现的是一道长达两光年的宇宙尘埃柱。在其内部,年轻的恒星赫比格-哈罗天体666正不断喷射出强大的喷射流。这道尘埃柱坐落于银河系最大的恒星形成区船底座星云中,在距离南部天空7500光年外熠熠生辉。它的分层结构由船底座星云中众多年轻炽热恒星产生的风与辐射塑造而成,其中部分恒星正形成于星云之中。透过贯穿尘埃的红外线可以看到,两道狭窄的强力喷射流仍不断地从一颗隐藏的恒星涌出。

译:银河说翻译组 俞天丽

HH 666: Carina Dust Pillar with Jet
Image Credit: NASA, ESA, Hubble, HLA; Processing & Copyright: Domingo Pestana

Explanation: To some, it may look like a beehive harboring an evil bee. In reality, the featured Hubble image captures a cosmic pillar of dust, two-light years long, inside of which is Herbig-Haro 666 — a young star emitting powerful jets. The structure lies within one of our galaxy’s largest star forming regions, the Carina Nebula, shining in southern skies at a distance of about 7,500 light-years. The pillar’s layered outline are shaped by the winds and radiation of Carina’s young, hot, massive stars, some of which are still forming inside the nebula. A dust-penetrating view in infrared light better shows the two, narrow, energetic jets blasting outward from a still hidden infant star.

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