2013年03月24日:船底座的尘埃云柱-(Dust Pillar of the Carina Nebula)

2013年03月24日:船底座的尘埃云柱-(Dust Pillar of the Carina Nebula)

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2013-03-24 / 0 评论 / 0 阅读 / 正在检测是否收录...

2013年03月24日:船底座的尘埃云柱-(Dust Pillar of the Carina Nebula)
2013年03月24日:船底座的尘埃云柱-(Dust Pillar of the Carina Nebula)--原图下载


Image Credit: NASA, ESA, N. Smith (U. California, Berkeley) et al., and The Hubble Heritage Team (STScI/AURA)
说明: 在这个星际怪物的头部里,有一颗恒星正慢慢地在摧毁它。影像中的这头怪物,实际上只是一支长约一光年气体尘埃柱。而里面那颗不断喷发出高能粒子束的恒星,被浓厚的尘埃给遮掩了,因此不得见。而类似的战役,出现在恒星形成区船底座大星云 (NGC 3372)的各个角落。最终,恒星们终将赢得胜利,在接下来的10万年之中,会把孕育它们的云气柱破坏殆尽,并形成一个新的疏散星团 。照片中的那些粉红小点,就是刚从孕育它们的云气柱分离出来的新恒星。上面这幅影像,是2007年哈伯望远镜船底座大星云所拍的高解析全景影像 的一小部份。在天文专业术语中,这种恒星喷流称为赫比格-哈罗天体 (Herbig-Haro objects)。恒星到底如何产生赫比格--哈罗喷流,仍是科学研究 的课题之一,不过可能和环拱中心星的吸积盘有关。在另一幅大图的底部附近,可见到另一个精采的赫比格--哈罗喷流

原文:

Image Credit: NASA, ESA, N. Smith (U. California, Berkeley) et al., and The Hubble Heritage Team (STScI/AURA)
Explanation: Inside the head of this interstellar monster is a star that is slowly destroying it. The monster, actually an inanimate pillar of gas and dust, measures over a light year in length. The star, not itself visible through the opaque dust, is bursting out partly by ejecting energetic beams of particles.Similar epic battles are being waged all over the star-forming Carina Nebula (NGC 3372). The stars will win in the end, destroying their pillars of creation over the next 100,000 years, and resulting in a new open cluster of stars.The pink dots are newly formed stars that have already been freed from their birth monster. The above image is only a small part of a highly detailed panoramic mosaic of the Carina Nebula taken by the Hubble Space Telescope in 2007. The technical name for the stellar jets are Herbig-Haro objects. How a star creates Herbig-Haro jets is an ongoing topic of research, but it likely involves an accretion disk swirling around a central star.A second impressive Herbig-Haro jet is visible across the bottom of alarger image.

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