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This Hubble Space Telescope view of the central region of the Carina Nebula reveals a violent maelstrom of star birth. The fantasy-like landscape of the nebula is sculpted by the intense pressure of starlight from monster stars and their accompanying star clusters, as well as the hydrodynamics of their stellar winds of charged particles.
此次“哈勃”空间望远镜对船底座星云中心区域的观察展现了一场狂暴的恒星诞生风潮。这梦幻般的景象是由巨星及其伴生星协发出的强烈光压，以及其带电粒子的星风产生的流体力学所塑造出的。
[Top] — An approximately one-light-year tall "pillar" of cold hydrogen towers above the wall of the molecular cloud. The 2.5-million-year-old star cluster called Trumpler 14 appears at the right side of the image. A small nugget of cold molecular hydrogen, called a Bok globule, is silhouetted against the star cluster.
顶部——一个大约一光年高的冷氢“塔柱”处在分子云墙的上面。年龄为250万年的星团 Trumple 14 处在图像的右边。一种叫“博克球状体”（Bok globule）的冷分子氢“小金块儿”形成逆着星团的剪影。
[Center] — A Bok globule nicknamed the "caterpillar" appears at the right. Its glowing edge indicates that it is being photoionized by the hottest stars in the cluster. It has been hypothesized that stars may form inside such dusty cocoons. The top of the Keyhole Nebula, the most prominent feature embedded inside Carina, is on the left. Another Bok globule is in the foreground.
中间——一个叫“毛虫”的博克球状体在右边。它增长中的边缘预示其正被星群中最炽热的恒星光致电离。据猜测恒星可能形成在这样充满尘埃的茧中。深植在船底座星云内部最显著的特征“锁眼”星云的顶端位于图像左侧。另一个博克球状体在它的前面。
[Bottom] — These great clouds of cold hydrogen resemble summer afternoon thunderheads. They tower above the surface of a molecular cloud on the edge of the nebula. So-called "elephant trunk" pillars resist being heated and eaten away by blistering ultraviolet radiation from the nebula's brightest stars.
底部——这些壮丽的冷氢气云颇似夏日午后的积雨云。它们耸立在星云边缘一块分子云的表面上，被称为“象鼻”的柱状体承受着来自星云最明亮恒星的炽热紫外线辐射的加热和吞噬。
[Left] — A towering "mountain" of cold hydrogen gas laced with dust is the site of new star formation in the Carina Nebula. The great gas pillar is being eroded by the ultraviolet radiation from the hottest newborn stars in the nebula.
左图——一个饰有尘埃花边高耸的冷氢气“山脉”正是船底座星云中新恒星诞生地。壮丽的气体柱正被星云中新生的炽热恒星发出的紫外线所侵蚀。
[Right] — A close-up look at the peak of one of these "pillars of creation" reveals unequivocal evidence that stars are being born inside the columns. A pencil-like streamer of gas shoots out in both directions from the pillar and plows into surrounding gas like a fire hose hitting a wall of sand. The jet is being launched from a newly forming star hidden inside the column. A similar jet appears near the bottom of the image. These stellar jets are a common signature of the birth of a new star.
其中一个“创生柱”的特写，展示了恒星正在该拄体内诞生毫无疑问的证据。一个铅笔状的气体流从柱体两端射出一头扎入周围的气体中，就像用消防水龙喷一堵沙墙。喷流是从隐藏在柱状体内部的一颗新生恒星射出的，在图片靠近底部处有一个相似的喷流。这种恒星喷流是新恒星诞生共同的信号。
The tadpole-looking feature in the center of this image is a nodule of cold hydrogen gas laced with dust. The image offers circumstantial evidence that a young star is being born inside the placental cloud. The diagonal feature may be caused by twin jets of gas blasting away from the hidden star. They are slamming into neighboring gas to create a pair of bow shocks on either side of the globule. The twisted "tail" on the back of the globule may be evidence for a wobbling jet of material being blasted from the suspected star.
在图像中心蝌蚪状的结构是一个混和尘埃的冷氢云。该图片提供了一颗年轻恒星正从胚胎云中诞生的旁证。对角线状的结构可能是从隐藏恒星吹出的孪生气体喷流造成的。它们撞进周围的气体在球状体两边制造了一对弓形击波。在球状体身后那条扭曲的“尾巴”可能是从被怀疑的恒星刮出的一条物质摆动喷流的证明。
An approximately one-light-year tall "pillar" of cold hydrogen towers above the wall of the molecular cloud. The 2.5-million-year-old star cluster called Trumpler 14 appears at the right side of the image. A small nugget of cold molecular hydrogen, called a Bok globule, is silhouetted against the star cluster.
从分子云墙上耸立出来的一个大约1光年高的冷氢气柱。被称作 Trumpler 14 的年龄为250万年的星团位于图像的右边。一个叫“博克球状体”的冷氢“小金块”逆着该星团形成剪影。
A Bok globule nicknamed the "caterpillar" appears at the right. Its glowing edge indicates that it is being photoionized by the hottest stars in the cluster. It has been hypothesized that stars may form inside such dusty cocoons. The top of the Keyhole Nebula, the most prominent feature embedded inside Carina, is on the left. Another Bok globule is in the foreground.
一个绰号“毛虫”的博克球状体在右边。它增长中的边界显示其正被星团中的热星光致电离。根据假设恒星可能正是从这种充满灰尘的茧中形成的。深植于船底座中最显著的结构“锁眼”星云的顶部处在左边。另一个博克球状体位于其前方。
These great clouds of cold hydrogen resemble summer afternoon thunderheads. They tower above the surface of a molecular cloud on the edge of the nebula. So-called "elephant trunk" pillars resist being heated and eaten away by blistering ultraviolet radiation from the nebula's brightest stars.
这些壮丽的冷氢云颇似夏日午后的积雨云。它们从星云底部的一片分子云表面耸立而出。称作“象鼻”的柱状体正承受着来自星云明亮恒星所发出的炽热紫外线的加热和侵蚀。
This labeled image identifies some of the significant features in the Carina Nebula region. The rectangles outline the details in the accompanying photographs. Several of the brightest stars are identified by their catalog numbers (CPD=Cape Observatory Photographic Durchmusterung, HD, HDE=Henry Draper Catalog), among the hottest, heaviest stars known. The brighter stars outside of the compact cluster Trumpler 14 belong to another larger cluster, Trumpler 16, which also includes the peculiar star Eta Carinae. Several of these are multiple systems: HD 93129 includes three stars. HD 93160 and HD 39161 are a binary system and HD 93161 is itelf binary.
这张有标注的图片标明了船底座星云区域内的一些主要结构。长方框勾出了细节照片的位置。一些最明亮的恒星被标出了目录号(CPD=Cape Observatory Photographic Durchmusterung, HD, HDE=Henry Draper Catalog)，跻身于已知最热、最重的恒星之列。在紧凑的 Trumler 14 星团之外比较明亮的恒星属于另一个较大的星团 Trumpler 16，罕见的船底座 Eta 星也在其中。它们中的一些是多重系统：HD 93129 包含3颗恒星， HD 93160 和 HD 93161（貌似作者把93161写成39161了） 一对二重系统，并且 HD 93161 自身也是双星。
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本帖最后由 Rojer. 于 2007-4-28 19:21 编辑 ]
