标签: galaxy cluster

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潘朵拉星系团

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天炉座星系团

2023年11月2日 The Fornax Cluster of Galaxies Image Credit & Copyright: Marcelo Rivera Explanation: Named for the southern constellation toward which most of its galaxies can be found, the Fornax Cluster is one of the closest clusters of galaxies. About 62 million light-years away, it’s over 20 times more distant than our neighboring Andromeda Galaxy,...

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星系团Abell 370及后方的天体

2023年9月12日 Galaxy Cluster Abell 370 and Beyond Image Credit: NASA, ESA, Jennifer Lotz and the HFF Team (STScI) Explanation: Some 4 billion light-years away, massive galaxy cluster Abell 370 is captured in this sharp Hubble Space Telescope snapshot. The cluster of galaxies only appears to be dominated by two giant elliptical galaxies and infested with faint a...

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韦伯的首张深场影像

2023年7月15日 Webb’s First Deep Field Image Credit: NASA, ESA, CSA, STScI, NIRCam Explanation: This stunning infrared image was released one year ago as the James Webb Space Telescope began its exploration of the cosmos. The view of the early Universe toward the southern constellation Volans was achieved in 12.5 hours of exposure with Webb’s NIRCam ...

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潘朵拉星系团

2023年6月9日 Pandora’s Cluster of Galaxies Image Credit: NASA, ESA, CSA, Ivo Labbe (Swinburne), Rachel Bezanson (University of Pittsburgh), Processing: Alyssa Pagan (STScI) Explanation: This deep field mosaicked image presents a stunning view of galaxy cluster Abell 2744 from the James Webb Space Telescope’s NIRCam. Also dubbed Pandora’s Clust...

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室女座星系团

2023年5月26日 Virgo Cluster Galaxies Image Credit & Copyright: Abdullah Alharbi Explanation: Galaxies of the Virgo Cluster are scattered across this nearly 4 degree wide telescopic field of view. About 50 million light-years distant, the Virgo Cluster is the closest large galaxy cluster to our own local galaxy group. Prominent here are Virgo’s bright...

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长蛇星系团

2023年2月16日 The Hydra Cluster of Galaxies Image Credit & Copyright: Marco Lorenzi, Angus Lau, Tommy Tse Text: ChatGPT (apologies to Edgar Allen Poe) Explanation: Once upon a midnight dreary, while I pondered weak and weary, O’er volumes of astronomy and forgotten lore, I stumbled upon this snapshot, cosmic and eerie, A sight that filled my heart wi...

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韦伯的首张深场影像

2022年7月13日 Webb’s First Deep Field Image Credit: NASA, ESA, CSA, STScI, NIRCam Explanation: This is the deepest, sharpest infrared image of the cosmos so far. The view of the early Universe toward the southern constellation Volans was achieved in 12.5 hours of exposure with the NIRCam instrument on the James Webb Space Telescope. Of course the stars wi...

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熔融星系的爱因斯坦环

2022年7月5日 A Molten Galaxy Einstein Ring Image Credit: ESA/Hubble & NASA, S. Jha; Processing: Jonathan Lodge Explanation: It is difficult to hide a galaxy behind a cluster of galaxies. The closer cluster’s gravity will act like a huge lens, pulling images of the distant galaxy around the sides and greatly distorting them. This is just the case obse...

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TNG50模拟:星系团是如何形成的

2022年5月29日 Simulation TNG50: A Galaxy Cluster Forms Video Credit: IllustrisTNG Project; Visualization: Dylan Nelson (Max Planck Institute for Astrophysics) et al. Music: Symphony No. 5 (Ludwig van Beethoven), via YouTube Audio Library Explanation: How do clusters of galaxies form? Since our universe moves too slowly to watch, faster-moving computer simulatio...