加载中…恒星残体和遥远黑洞的X射线光彩夺目
(2014-01-22 10:20:14)
标签：
杂谈 |
分类： 科学与技术 |
http://photos.state.gov/libraries/amgov/3234/Week_1/01102014_pia17566-640-600.jpg
美国航空航天局（NASA）核光谱望远镜阵列（Nuclear Spectroscopic Telescope Array, NuSTART）捕捉到的两幅新图像显示了其观测远近物体的能力。一幅图像展示一颗恒星残体所产生的高能量射线，因形似一只手而被冠以“上帝之手” （Hand of God）的绰号（如上图）。另一幅图像则展示了被埋没在层层尘埃中的遥远的黑洞。
这项任务的首席研究员、位于加利福尼亚州帕萨迪纳（Pasadena, Calif.）的加州理工学院（California Institute of Technology）的菲奥娜·哈里森（Fiona Harrison）说：“核光谱望远镜阵列观测最高能级的X射线的独特视角以全新的角度向我们展示了已得到大量研究的物体和区域。”
2012年6月，核光谱望远镜阵列被发射到太空，执行探索高能X射线宇宙的任务。它正在观察黑洞、已死的和已爆炸的恒星以及银河系（Milky Way galaxy）内外的其他极端物体。
核光谱望远镜阵列的望远镜由以下机构联合建造：美国航空航天局、加州理工学院、加州大学伯克利分校（University of California, Berkeley）、纽约哥伦比亚大学（Columbia University, New York）以及位于丹麦孔恩斯-灵比（Kongens Lyngby）的丹麦科技大学（Danish Technical University），并得到位于罗马（Rome）的意大利航天局（Italian Space Agency, ASI）科学数据中心（Science Data Center）的支持。
核光谱望远镜阵列的使命中心位于加州大学伯克利分校，意大利航天局为其提供位于肯尼亚马林地（Malindi）的赤道地面站。
有关上述新图像的详情请见美国航空航天局的新闻简报。
Read more: http://iipdigital.usembassy.gov/st/chinese/inbrief/2014/01/20140113290468.html#ixzz2r5dcT686
Dead Star and Distant Black Holes Dazzle in X-Rays
http://photos.state.gov/libraries/amgov/3234/Week_1/01102014_pia17566-640-600.jpg
Two new views from NASA’s Nuclear Spectroscopic Telescope Array, or NuSTAR, showcase the telescope’s talent for spying objects near and far. One image shows the energized remains of a dead star, a structure nicknamed the “Hand of God” after its resemblance to a hand (above). Another image shows distant black holes buried in blankets of dust.
“NuSTAR’s unique viewpoint, in seeing the highest-energy X-rays, is showing us well-studied objects and regions in a whole new light,” said Fiona Harrison, the mission’s principal investigator at the California Institute of Technology in Pasadena, Calif.
NuSTAR launched into space in June 2012 on a mission to explore the high-energy X-ray universe. It is observing black holes, dead and exploded stars and other extreme objects in the Milky Way galaxy and beyond.
NuSTAR’s telescope was built by a consortium including NASA; the California Institute of Technology; the University of California, Berkeley; Columbia University, New York; the Danish Technical University in Kongens Lyngby, Denmark, and with support from the Italian Space Agency (ASI) Science Data Center in Rome.
NuSTAR’s mission operations center is at UC Berkeley, with ASI providing its equatorial ground station located in Malindi, Kenya.
For more on the new images, see this NASA press release.
Read more: http://iipdigital.usembassy.gov/st/english/inbrief/2014/01/20140110290261.html#ixzz2r5ddqUIu
喜欢
0
赠金笔