另眼系列之婴儿恒星的毯子(新增译文)

来源:http://gallery.spitzer.caltech.e ... ge_name=ssc2008-03a

http://www.jpl.nasa.gov/news/news.cfm?release=2008-023

Young Stars in Their Baby Blanket of Dust

Newborn stars peek out from beneath their natal blanket of dust in this dynamic image of the Rho Ophiuchi dark cloud from NASA's Spitzer Space Telescope. Called "Rho Oph" by astronomers, it's one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth.

Rho Oph is a complex made up of a large main cloud of molecular hydrogen, a key molecule allowing new stars to form from cold cosmic gas, with two long streamers trailing off in different directions. Recent studies using the latest X-ray and infrared observations reveal more than 300 young stellar objects within the large central cloud. Their median age is only 300,000 years, very young compared to some of the universe's oldest stars, which are more than 12 billion years old.

This false-color image of Rho Oph's main cloud, Lynds 1688, was created with data from Spitzer's infrared array camera, which has the highest spatial resolution of Spitzer's three imaging instruments, and its multiband imaging photometer, best for detecting cooler
materials. Blue represents 3.6-micron light; green shows light of 8 microns; and red is 24-micron light. The multiple wavelengths reveal different aspects of the dust surrounding and between the embedded stars, yielding information about the stars and their birthplace.

The colors in this image reflect the relative temperatures and evolutionary states of the various stars. The youngest stars are surrounded by dusty disks of gas from which they, and their potential planetary systems, are forming. These young disk systems show up as red in this image. Some of these young stellar objects are surrounded by their own compact nebulae. More evolved stars, which have shed their natal material, are blue.

The extended white nebula in the center right of the image is a region of the cloud which is glowing in infrared light due to the heating of dust by bright young stars near the right edge of the cloud. Fainter multi-hued diffuse emission fills the image. The color of the nebulosity depends on the temperature, composition and size of the dust grains. Most of the stars forming now are concentrated in a filament of cold, dense gas that shows up as a dark cloud in the lower center and left side of the image against the bright background of the warm dust. Although infrared radiation at 24 microns pierces through dust easily, this dark filament is incredibly opaque, appearing dark even at the longest wavelengths in the image.


译文来源:http://www.bjp.org.cn/apod/today.htm

心宿增四星云内的年轻恒星

影像提供：NASA JPL-Caltech, Harvard-Smithsonian CfA

    说明：在这张由斯皮策太空望远镜利用红外波段拍摄的假色影像中，宇宙尘埃云和其内的新星发出光和热。上面影像中是距离我们最近的恒星形成区域之一，它是心宿增四复杂星云的一部分，距离我们大约400光年远，位于易辨认的蛇夫座南边缘附近。在这个距离上估计，这张影像大约有5光年。形成于一大片较冷的氢气分子云中，新星激发了周围的尘埃产生了红外光。经过敏锐的红外光线探测后，发现大约有300颗正在出现和新形成的恒星，平均年龄在估计只有30万年，相对于太阳年龄50亿年来说，它们相当年轻。

                               
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[ 本帖最后由 寻找拉玛 于 2008-2-15 18:41 编辑 ]

来源:http://gallery.spitzer.caltech.e ... ge_name=ssc2008-03b

http://www.jpl.nasa.gov/news/news.cfm?release=2008-023

Young Stars in Their Baby Blanket of Dust

Newborn stars peek out from beneath their natal blanket of dust in this dynamic image of the Rho Ophiuchi dark cloud from NASA's Spitzer Space Telescope. Called "Rho Oph" by astronomers, it's one of the closest star-forming regions to our own solar system. Located near the constellations Scorpius and Ophiuchus, the nebula is about 407 light years away from Earth.

Rho Oph is a complex made up of a large main cloud of molecular hydrogen, a key molecule allowing new stars to form from cold cosmic gas, with two long streamers trailing off in different directions. Recent studies using the latest X-ray and infrared observations reveal more than 300 young stellar objects within the large central cloud. Their median age is only 300,000 years, very young compared to some of the universe's oldest stars, which are more than 12 billion years old.

This false-color image of Rho Oph's main cloud, Lynds 1688, was created with data from Spitzer's infrared array camera, which has the highest spatial resolution of Spitzer's three imaging instruments. Blue represents 3.6 micron light, green is 4.5 micron light, orange is 5.8, and red is 8.0. The multiple wavelengths reveal different aspects of the dust surrounding and between the embedded stars, yielding information about the stars and their birthplace.

The colors in this image reflect the relative temperatures and evolutionary states of the various stars. The youngest stars are surrounded by dusty disks of gas from which they, and their potential planetary systems, are forming. These young disk systems show up as yellow-green tinted stars in this image. Some of these young stellar objects are surrounded by their own compact nebulae. More evolved stars, which have shed their natal material, are blue-white.

The extended white nebula in the center right of the image is a region of the cloud which is glowing in infrared light due to the illumination of dust by bright young stars near the right edge of the cloud. Red and pink diffuse emission from carbon-rich dust molecules fills the image. Most of the stars forming now are concentrated in a filament of cold, dense gas that shows up as a dark cloud in the lower center and left side of the image against the bright background of the warm dust. Although infrared radiation at 8 microns pierces through dust easily, this dark filament is incredibly opaque, appearing dark even at the longest wavelengths in the image.

                               
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[ 本帖最后由 寻找拉玛 于 2008-2-15 12:03 编辑 ]

光学图像，来源:http://www.fnal.gov/pub/today/archive_2007/today07-12-13.html

^-^为方便大家打开阅读就不贴大图了，如果想看大图可以下载附件。注:分卷压缩，全部下载后才能解压。

来源:http://gallery.spitzer.caltech.edu/Imagegallery/image.php?image_name=ssc2008-03a

[ 本帖最后由 寻找拉玛 于 2008-2-15 14:06 编辑 ]

^-^为方便大家打开阅读就不贴大图了，如果想看大图可以下载附件。注:分卷压缩，全部下载后才能解压。


来源:http://gallery.spitzer.caltech.e ... ge_name=ssc2008-03b

[ 本帖最后由 寻找拉玛 于 2008-2-15 14:06 编辑 ]

如约见到楼主的精彩大图了，正在下载……

貌似不懂。。 嗬嗬！不过图片真的是太美丽了！

与之相关的光学图像


来源:http://www.bjp.org.cn/apod/2006-07/14/content_6747.htm


心宿增四星周围的美丽云彩

影像提供及版权：Jim Misti and Steve Mazlin, (acquisition), Robert Gendler (processing)

   说明：这张心宿二和心宿增四星周围天空美丽的影像，展示了这片宇宙星场中绚丽的色彩。在影像的顶端，心宿增四星和附近的恒星都沉浸在蓝色的反射星云内，这个尘埃云主要是通过反射星光而发光。冷暗的超巨型恒星心宿二（左下），它抛掉的外壳物质正是反射了其残留核心的辐射而发出黄色的晕光。恒星形成区域的特有的，氢气发出的红光也弥漫在这幅影像中，沿着黑暗模糊的尘埃云轮廓，与背景恒星和明亮星云明显的区别开来。心宿增四星云大约距离我们500光年远，正好在附近球状星团M4的前方，可以看到M4位于中心的右下方。这幅影像在天空中正好覆盖6度的天区（4个满月）。




[ 本帖最后由 寻找拉玛 于 2008-2-16 13:25 编辑 ]

与之相关的光学图像

来源:http://pic.stardusts.net/pic20050704.php

在天蝎座的心宿二与蛇夫脚的心宿增四之间存在着一个色彩鲜艳的星际调色盘，当中布满星云星团，各自有不同的颜色。如图所示，上方为心宿增四，右下角被黄色的星云包围着的是天蝎座的主星心宿二，右面是球状星团M4，心宿二与心宿增四之间存在着黑色的暗星云。




来源:http://messier.obspm.fr/more/i-aop.html

[ 本帖最后由 寻找拉玛 于 2008-2-15 20:47 编辑 ]

拉吗的贴图能力就是强啊。。。。PFPF啊

去年的图版帖王当然不是盖的，呵呵

整合很好很强大！

哈哈，有机会得多向喇嘛兄弟取取经

江兄我可不是和尚。

漂亮！！图上可看的内容很多！收藏了！！感谢拉玛分享！！ 支持！！！

燃烧的龙珠！！

好图好图好图好图好图好图！！！～