APOD251003 潘朵拉星系团
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图像提供: NASA[1], ESA[2], CSA[3], Ivo Labbe (Swinburne), Rachel Bezanson (University of Pittsburgh), Processing: Alyssa Pagan (STScI[4])
英文原文:Explanation: This deep field mosaicked image presents a stunning view of galaxy cluster Abell 2744 recorded by the James Webb Space Telescope's NIRCam. Also dubbed Pandora's Cluster, Abell 2744 itself appears to be a ponderous merger of three different massive galaxy clusters. It lies some 3.5 billion light-years away, toward the constellation Sculptor. Dominated by dark matter , the mega-cluster warps and distorts the fabric of spacetime, gravitationally lensing even more distant objects. Redder than the Pandora cluster galaxies, many of the lensed sources are very distant galaxies in the early Universe, their lensed images stretched and distorted into arcs. Of course, distinctive diffraction spikes mark foreground Milky Way stars. At the Pandora Cluster's estimated distance, this cosmic box spans about 6 million light-years. But don't panic. You can explore the tantalizing region in a 2 minute video tour . 说明: 这幅深空马赛克图像[5]展示了由詹姆斯·韦伯太空望远镜的近红外相机(NIRCam)记录星系团Abell 2744的壮丽景象。 Abell 2744也被称为潘朵拉星系团,它似乎是由三个不同的大质量星系团合并而成的庞然结构。 它距离约35亿光年远,位于玉夫座方向。 受暗物质主导[6],这个巨型星系团扭曲并改变时空的结构,引力透镜效应[7]使得更遥远的天体也被观测到。 许多透镜源比潘朵拉星系团更红,它们是早期宇宙中非常遥远的星系,它们的透镜图像被拉伸和扭曲成弧线。 当然,独特的[8]绕射尖峰标示了前景银河系的恒星。 在潘朵拉星系团的估计距离上,这个宇宙盒子横跨约600万光年。 但别惊慌。 你可以在2分钟的视频导览[9]中探索这个引人入胜的区域。
明日的图片: IOMN[10]
Authors & editors: Robert Nemiroff[11] (MTU[12]) & Jerry Bonnell[13] (UMCP[14])
NASA Official: Amber Straughn Specific rights apply[15].
NASA Web Privacy[16], Accessibility[17], Notices[18];
A service of: ASD[19] at NASA[20] / GSFC[21],
NASA Science Activation[22]
& Michigan Tech. U.[23]
太空天文实验室(成功大学物理系) <br/> 编辑:<a href="mailto:hantzong.su@gmail.com" style="color:gray;" target="_blank">苏汉宗</a>
编辑:陈炳志[24]
[3]https://www.asc-csa.gc.ca/eng/
[5]https://webbtelescope.org/contents/news-releases/2023/news-2023-107
[6]https://chandra.harvard.edu/photo/2011/a2744/
[7]https://webbtelescope.org/contents/media/videos/2019/41/1229-Video
[8]http://apod.nasa.gov/apod/ap220319.html
[9]https://webbtelescope.org/contents/news-releases/2023/news-2023-107#section-id-3
[10]http://apod.nasa.gov/apod/ap251004.html
[11]http://www.phy.mtu.edu/faculty/Nemiroff.html
[13]https://antwrp.gsfc.nasa.gov/htmltest/jbonnell/www/bonnell.html
[15]http://apod.nasa.gov/apod/lib/about_apod.html#srapply
[16]https://www.nasa.gov/about/highlights/HP_Privacy.html
[17]https://www.nasa.gov/general/accessibility/
[18]https://www.nasa.gov/privacy/
[19]https://astrophysics.gsfc.nasa.gov/
[21]https://www.nasa.gov/centers/goddard/
[22]https://science.nasa.gov/learners
[24]mailto:alfred@ncku.edu.tw
http://apod.nasa.gov/apod/ap251003.html
http://sprite.phys.ncku.edu.tw/astrolab/mirrors/apod/ap251003.html
