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中企互动-科技时代讯 据英国《每日邮报》最新报道,为纪念美国宇航局钱德拉X射线天文台发射升空10周年,钱德拉X射线天文台发布10年间拍摄的精彩太空照片。
了解“钱德拉”:1999年7月23日,哥伦比亚号航天飞机搭载钱德拉X射线天文台升空。钱德拉X射线天文台升空目的是观测天体的X射线辐射。作为大型轨道天文台计划的第三颗卫星,其特点是兼具极高的空间分辨率和光谱分辨率,被认为是X射线天文学上具有里程碑象征的空间望远镜,标志着X射线天文学从测光时代进入了光谱时代。钱德拉X射线天文台运行的太空轨道是一条椭圆,近地点为1万公里,远地点为14万公里,轨道周期为64小时。
以下就是英国《每日邮报》公布的钱德拉X射线天文台拍摄的太空照片:
1.老鹰星云内的创造之柱
老鹰星云内的创造之柱
【原文】This penetrating view of the central region of the Eagle Nebula from Nasa's Chandra X-ray observatory reveals the incredible amount of star formation inside the iconic ' illars of Creation'. Most of the bright X-ray sources are young stars.
【御月翻译】这张鹰状星云图来自美国宇航局的钱德拉X射线天文台发现里面标志性的'难以置信的由大量恒星形成的创造性支柱'。上图大多数明亮的X射线源的年轻恒星。
2.超新星遗迹仙后座A
超新星遗迹仙后座A
This stunning picture of the supernova remnant Cassiopeia A is a composite of images taken by three of NASA's Great Observatories. Infrared data from the Spitzer Space Telescope are coloured red; optical data from the Hubble Space Telescope are yellow; and X-ray data from the Chandra X-ray Observatory are green and blue. Comparing the infrared and X-ray images could reveal how relatively cool dust grains coexist with superhot gas.
这张图是超新星遗迹仙女座A的图片是由美国宇航局钱德拉X射线天文台、哈勃太空望远镜和斯皮策太空望远镜拍摄的照片合成而来的。红外数据从斯皮策太空望远镜都染成红色,从哈勃太空望远镜的光学数据是黄色的,而X -射线数据的钱德拉X射线天文台,绿色和蓝色。比较红外线和X射线影像能够揭示出相对较冷的尘埃颗粒的超热气体并存。
3. RCW 86形超新星遗迹
RCW 86超新星遗迹
This image shows a part of the circular supernova remnant known as RCW 86. It is the remains of an exploded star, which may have been observed on Earth in 185AD by Chinese astronomers. A team of astronomers said it helped them gain new insight into how the remnants act as the Milky Way's super-efficient particle accelerators.
此图片显示了超新星RCW 86的残余部分。这是一颗恒星爆炸的残余,这颗恒星可能是早在公元185年由中国天文学家观测到的。天文学家们表示,这张图片帮助他们获得了对RCW 86新的深入了解机会,将有机会去揭示银河系的超高效的粒子加速器是如何工作的。
4. 仙后座A恒星爆炸后的气体壳
仙后座A恒星爆炸后的气体壳
Cas A is the remnant of a star that exploded about 300 years ago in the constellation Cassiopeia. The X-ray image shows an expanding shell of hot gas produced by the explosion. This gaseous shell is about 10 light years in diameter and has a temperature of about 50 million degrees.
仙后座A是一颗名叫仙后座的恒星在大约300年前残骸发生爆炸的残余星体。在x射线图显示的是由爆炸产生的高温气体膨胀扩展。这种气体壳直径约10光年,拥有约50亿度的温度。
5. M82星系
M82星系
In this beautiful multiwavelength view of the starburst galaxy M82, optical light from stars, pictured in yellow-green, reveals the disk of an apparently normal galaxy. Another observation designed to image 10,000 degree Celsius hydrogen gas in orange reveals a startlingly different picture with matter blasting out of the galaxy.
M82星系美丽的多波长星爆图中,从图中看出恒星发出黄色绿色可见光,显示了一个看似正常星系盘。而橘红色显示的是该星系爆发出的摄氏10000度的氢气。在光学和红外线下观测M82星系,就如同像一个雪茄星系。
6 金牛座蟹状星云
金牛座蟹状星云
In brilliant blue, this is the pulsar wind nebula of the Crab Nebula in the constellation of Taurus. Energetic electrons and positrons (antielectrons) move out from an inner X-ray ring, which marks a shockwave between different forms of matter, to produce an extended X-ray glow.
这张亮蓝,绚丽星云正是的金牛座的蟹状星云。高能电子和正电子(antielectrons)迁出,从内心透视环,这标志着之间不同形式的物质冲击波,产生一个扩展X射线发光。
7 银河系中心部分区域景象
银河系中心部分区域景象
This image was produced by combining a dozen Chandra observations made of a 130-light-year region in the center of the Milky Way. The coloured spots represent X-ray sources due to neutron stars, black holes, white dwarfs, foreground stars and background galaxies. The spectrum of the diffuse X-ray glow in the direction of the disk of the galaxy is consistent with a hot gas cloud.
这张图片是张钱德拉X射线天文台的观测结果图合成而得到的,我们可以看到银河系中心一个130光年跨度区域的景象。彩色斑点代表了源自中子星、黑洞、白矮星、前景中的恒星和背景星系的X射线源。
8. 水母星云
水母星云
Located above the center of the Medusa galaxy, the 'hair' - made of snakes in the Greek myth - is a tidal tail formed by a collision between galaxies. The bright X-ray source found towards the left side of Medusa's hair is a black hole.
以上梅杜萨星系的中心地带,水母星云与希腊神话女蛇妖同名。梅杜莎是在一个由潮汐尾星系之间的碰撞形成的。明亮的X射线源显示“美杜莎的头发”左面是一个黑洞。
9.四星系碰撞
四星系碰撞
A new look at Stephan's Quintet, a compact group of galaxies discovered about 130 years ago and located 280million light years from Earth. One galaxy is passing through a core of four other galaxies. The curved, light blue ridge running down the center of the image shows X-ray data from the Chandra X-ray Observatory.
四星系碰撞,约130年前,发现距离地球2.8亿光年的星系紧凑组发现新的面貌。一个星系正在接近四个其他星系的核心。弯曲的,淡蓝色星云在图像的中心,显示图片是钱德拉X射线天文台拍摄的数据。 (御月) |