File:A gargantuan collision ACT-CL J0102-4915.jpg

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摘要

描述	English: In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion Suns — so it’s little wonder that it has earned the nickname of “El Gordo” (“the Fat One” in Spanish)! Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and X-ray brightest galaxy cluster ever discovered in the distant Universe. Galaxy clusters are the largest objects in the Universe that are bound together by gravity. They form over billions of years as smaller groups of galaxies slowly come together. In 2012, observations from ESO’s Very Large Telescope, NASA’s Chandra X-ray Observatory and the Atacama Cosmology Telescope showed that El Gordo is actually composed of two galaxy clusters colliding at millions of kilometres per hour. The formation of galaxy clusters depends heavily on dark matter and dark energy; studying such clusters can therefore help shed light on these elusive phenomena. In 2014, Hubble found that most of El Gordo’s mass is concealed in the form of dark matter. Evidence suggests that El Gordo’s “normal” matter — largely composed of hot gas that is bright in the X-ray wavelength domain — is being torn from the dark matter in the collision. The hot gas is slowing down, while the dark matter is not. This image was taken by Hubble’s Advanced Camera for Surveys and Wide-Field Camera 3 as part of an observing programme called RELICS (Reionization Lensing Cluster Survey). RELICS imaged 41 massive galaxy clusters with the aim of finding the brightest distant galaxies for the forthcoming NASA/ESA/CSA James Webb Space Telescope (JWST) to study.
日期	2018年1月8日, 06:00:00
来源	http://www.spacetelescope.org/images/potw1802a/
作者	ESA/Hubble & NASA, RELICS

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	日期/时间	缩⁠略⁠图	大小	用户	备注
当前	2018年1月8日 (一) 13:13		7,791 × 4,784（15.44 MB）	Jmencisom	User created page with UploadWizard

文件用途

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埃尔戈尔多星系团

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en.wikipedia.org上的用途
- El Gordo (galaxy cluster)
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- ACT-CL J0102-4915

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提供者	ESA/Hubble & NASA, RELICS
来源	ESA/Hubble
简短标题	A gargantuan collision
图像标题	In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion Suns — so it’s little wonder that it has earned the nickname of “El Gordo” (“the Fat One” in Spanish)! Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and X-ray brightest galaxy cluster ever discovered in the distant Universe. Galaxy clusters are the largest objects in the Universe that are bound together by gravity. They form over billions of years as smaller groups of galaxies slowly come together. In 2012, observations from ESO’s Very Large Telescope, NASA’s Chandra X-ray Observatory and the Atacama Cosmology Telescope showed that El Gordo is actually composed of two galaxy clusters colliding at millions of kilometres per hour. The formation of galaxy clusters depends heavily on dark matter and dark energy; studying such clusters can therefore help shed light on these elusive phenomena. In 2014, Hubble found that most of El Gordo’s mass is concealed in the form of dark matter. Evidence suggests that El Gordo’s “normal” matter — largely composed of hot gas that is bright in the X-ray wavelength domain — is being torn from the dark matter in the collision. The hot gas is slowing down, while the dark matter is not. This image was taken by Hubble’s Advanced Camera for Surveys and Wide-Field Camera 3 as part of an observing programme called RELICS (Reionization Lensing Cluster Survey). RELICS imaged 41 massive galaxy clusters with the aim of finding the brightest distant galaxies for the forthcoming NASA/ESA/CSA James Webb Space Telescope (JWST) to study.
使用条款	Creative Commons Attribution 4.0 International License
数据生成日期时间	2018年1月8日 (一) 06:00
JPEG文件备注	In 2014, astronomers using the NASA/ESA Hubble Space Telescope found that this enormous galaxy cluster contains the mass of a staggering three million billion Suns — so it’s little wonder that it has earned the nickname of “El Gordo” (“the Fat One” in Spanish)! Known officially as ACT-CLJ0102-4915, it is the largest, hottest, and X-ray brightest galaxy cluster ever discovered in the distant Universe. Galaxy clusters are the largest objects in the Universe that are bound together by gravity. They form over billions of years as smaller groups of galaxies slowly come together. In 2012, observations from ESO’s Very Large Telescope, NASA’s Chandra X-ray Observatory and the Atacama Cosmology Telescope showed that El Gordo is actually composed of two galaxy clusters colliding at millions of kilometres per hour. The formation of galaxy clusters depends heavily on dark matter and dark energy; studying such clusters can therefore help shed light on these elusive phenomena. In 2014, Hubble found that most of El Gordo’s mass is concealed in the form of dark matter. Evidence suggests that El Gordo’s “normal” matter — largely composed of hot gas that is bright in the X-ray wavelength domain — is being torn from the dark matter in the collision. The hot gas is slowing down, while the dark matter is not. This image was taken by Hubble’s Advanced Camera for Surveys and Wide-Field Camera 3 as part of an observing programme called RELICS (Reionization Lensing Cluster Survey). RELICS imaged 41 massive galaxy clusters with the aim of finding the brightest distant galaxies for the forthcoming NASA/ESA/CSA James Webb Space Telescope (JWST) to study.
关键词	ACT-CL J0102-4915
联系信息	http://www.spacetelescope.org Karl-Schwarzschild-Strasse 2 Garching bei München, , D-85748 Germany
IIM版本	4

File:A gargantuan collision ACT-CL J0102-4915.jpg

摘要

许可协议

说明

此文件中描述的项目

描绘内容

版权状态 ^{简体中文（已转写）}

版权所有 ^{简体中文（已转写）}

许可协议

知识共享署名4.0国际 ^{简体中文（已转写）}

成立或创建时间

8 1 2018

媒体类型 ^{简体中文（已转写）}

image/jpeg

校验和 ^{简体中文（已转写）}

14441ab4d761bdfd11a0df4c1af55b2b2e5ec1d5

数据大小 ^{简体中文（已转写）}

16,190,278 字节

高度

4,784 像素

宽度

7,791 像素

文件历史

文件用途

全域文件用途

元数据

File:A gargantuan collision ACT-CL J0102-4915.jpg

摘要

许可协议

说明

此文件中描述的项目

描绘内容

版权状态 简体中文（已转写）

版权所有 简体中文（已转写）

许可协议

知识共享署名4.0国际 简体中文（已转写）

成立或创建时间

8 1 2018

媒体类型 简体中文（已转写）

image/jpeg

校验和 简体中文（已转写）

14441ab4d761bdfd11a0df4c1af55b2b2e5ec1d5

数据大小 简体中文（已转写）

16,190,278 字节

高度

4,784 像素

宽度

7,791 像素

文件历史

文件用途

全域文件用途

元数据

版权状态 ^{简体中文（已转写）}

版权所有 ^{简体中文（已转写）}

知识共享署名4.0国际 ^{简体中文（已转写）}

媒体类型 ^{简体中文（已转写）}

校验和 ^{简体中文（已转写）}

数据大小 ^{简体中文（已转写）}