本帖最后由 gohomeman1 于 2010-7-11 17:12 编辑
http://hubblesite.org/newscenter/archive/releases/2004/22/image/a/
http://imgsrc.hubblesite.org/hu/db/images/hs-2004-22-a-full_tif.tif，1.8MB
ABOUT THIS IMAGE:
NASA's Hubble Space Telescope captures this iridescent tapestry of star birth in a neighboring galaxy in this panoramic view of glowing gas, dark dust clouds, and young, hot stars. The star-forming region, catalogued as N11B, lies in the Large Magellanic Cloud (LMC), located only 160,000 light-years from Earth. With its high resolution, the Hubble Space Telescope is able to view details of star formation in the LMC as easily as ground-based telescopes are able to observe stellar formation within our own Milky Way galaxy. This new Hubble image zooms in on N11B, which is a small subsection within an area of star formation cataloged as N11. N11 is the second largest star-forming region in the LMC. Within the LMC, N11 is surpassed in size and activity only by the immense Tarantula nebula (also known as 30 Doradus.)
NASA的哈勃太空望远镜在邻近星系中拍摄了一个恒星诞生区的全景图，云锦般的图像中充满发光气体、暗尘埃云和年轻的热巨星。这个恒星诞生区编号为N11B，位于大麦哲伦星系（LMC），离地球约 16万光年。基于哈勃的高分辨率，研究其中的细节与通过地面望远镜研究银河系中恒星孕育区一样容易。这张哈勃的新图放大了N11B中的细节，它仅是N11整个区域的一小部分。在LMC中，N11是第2大的恒星孕育区，尺度和活跃度仅次于最出色的蜘蛛星云（又名剑鱼座30）。
The image illustrates a perfect case of sequential star formation in a nearby galaxy where new star birth is being triggered by previous-generation massive stars. A collection of blue- and white-colored stars near the left of the image are among the most massive stars known anywhere in the universe. The region around the cluster of hot stars in the image is relatively clear of gas, because the stellar winds and radiation from the stars have pushed the gas away. When this gas collides with and compresses surrounding dense clouds, the clouds can collapse under their own gravity and start to form new stars. The cluster of new stars in N11B may have been formed this way, as it is located on the rim of the large, central interstellar bubble of the N11 complex. The stars in N11B are now beginning to clear away their natal cloud, and are carving new bubbles in turn. Yet another new generation of stars is now being born in N11B, inside the dark dust clouds in the center and right-hand side of the Hubble image. This chain of consecutive star birth episodes has been seen in more distant galaxies, but it is shown very clearly in this new Hubble image.
本图完美诠释了邻近星系的恒星诞生区中，上一代大质量恒星是如此触发下一代恒星诞生的。图像左方的蓝白色星团中充斥着宇宙中到处可见的蓝超巨星，星团周围区域，因炽热巨星的强烈辐射和强劲恒星风，气体基本都被吹跑了。这些吹散的气体与更远处的气体相互作用，压缩了气体云并引发了它们的引力坍缩过程，形成新一代恒星。在N11B中心附近复杂的空腔壁上，新一代恒星很可能就是以这种方式形成的。新生的恒星正在清除其周围的襁褓气体，形成新的空泡。在图中央和右方的黑暗尘埃云中，更新一代的恒星正在形成。这种持续的恒星诞生链可以在非常遥远的星系中看到，但现在清晰展示在这张哈勃的新图像中。
Farther to the right of the image, along the top edge, are several smaller dark clouds of interstellar dust with odd and intriguing shapes. They are seen silhouetted against the glowing interstellar gas. Several of these dark clouds are bright-rimmed because they are illuminated and are being evaporated by radiation from neighboring hot stars.
在图的右上方，我们可以看到一些有着奇特外形的暗星云，它们是在发光星际云前的稠密星际尘埃。其中的一些暗云有着发光的镶边，因为它们内蕴的新生灼热恒星正在照亮并蒸发它们。
This image was taken with Hubble's Wide Field Planetary Camera 2 using filters that isolate light emitted by hydrogen and oxygen gas. The science team, led by astronomers You-Hua Chu (University of Illinois) and Yäel Nazé (Universite de Liège, Belgium) are comparing these images of N11B, taken in 1999, with similar regions elsewhere in the LMC. This color composite image was co-produced and is being co-released by the Hubble Heritage Team (STScI) and the Hubble European Space Agency Information Center (HEIC).
本图由哈勃的第二代广域行星相机（WFPC2）拍摄于1999年，滤光器对应氢和氧的发射线。由伊利诺伊大学楚友华（音）和比利时列日大学 Y. Nazé 牵头的科学家团队，比较了N11与LMC中类似区域的图像。这张彩色合成图像由哈勃遗产团队和欧洲空间局哈勃信息中心（HEIC）联合制作、发布。
Object Name: N11B
对象名称：N11B
Image Type: Astronomical
图像类型：天体
Image Credit: NASA, ESA, and The Hubble Heritage Team (AURA/STScI)
版权：NASA、ESA，哈勃遗产团队（太空望远镜科研所/美国大学天文研究联合会）
Acknowledgment: Y.-H. Chu (U. Illinois, Urbana-Champaign) and Y. Nazé (U. Liège, Belgium)
特别感谢：美国伊利诺伊大学厄巴纳-香槟分校（或平原大学） 楚友华（音），比利时列日大学 Y. Nazé |
置顶卡
变色卡
千斤顶
显身卡
