File:A galactic mega-merger.jpg

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摘要

描述A galactic mega-merger.jpg	English: The subject of this NASA/ESA Hubble Space Telescope image is known as NGC 3597. It is the product of a collision between two good-sized galaxies, and is slowly evolving to become a giant elliptical galaxy. This type of galaxy has grown more and more common as the Universe has evolved, with initially small galaxies merging and progressively building up into larger galactic structures over time. NGC 3597 is located approximately 150 million light-years away in the constellation of Crater (The Cup). Astronomers study NGC 3597 to learn more about how elliptical galaxies form — many ellipticals began their lives far earlier in the history of the Universe. Older ellipticals are nicknamed “red and dead” by astronomers because these bloated galaxies are not anymore producing new, bluer, stars in ages, and are thus packed full of old and redder stellar populations. Before infirmity sets in, some freshly formed elliptical galaxies experience a final flush of youth, as is the case with NGC 3597. Galaxies smashing together pool their available gas and dust, triggering new rounds of star birth. Some of this material ends up in dense pockets initially called proto-globular clusters, dozens of which festoon NGC 3597. These pockets will go on to collapse and form fully-fledged globular clusters, large spheres that orbit the centres of galaxies like satellites, packed tightly full of millions of stars.
日期	2016年1月11日, 06:00:00
来源	http://www.spacetelescope.org/images/potw1602a/
作者	ESA/Hubble & NASA Acknowledgement: Judy Schmidt

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	日期/时间	缩⁠略⁠图	大小	用户	备注
当前	2016年1月11日 (一) 11:00		1,280 × 1,216（251 KB）	Jmencisom	User created page with UploadWizard

文件用途

以下页面使用本文件：

NGC 3597

全域文件用途

以下其他wiki使用此文件：

en.wikipedia.org上的用途
es.wikipedia.org上的用途
- Galaxia elíptica
eu.wikipedia.org上的用途
- Galaxia eliptiko
fr.wikipedia.org上的用途
- Galaxie
- NGC 3597
it.wikipedia.org上的用途
- NGC 3597
pl.wikipedia.org上的用途
- NGC 3597
ru.wikipedia.org上的用途
- Эллиптическая галактика
sr.wikipedia.org上的用途
- Eliptička galaksija
uz.wikipedia.org上的用途
- Elliptik galaktika

元数据

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提供者	ESA/Hubble & NASA Acknowledgement: Judy Schmidt
来源	ESA/Hubble
简短标题	A galactic mega-merger
图像标题	The subject of this NASA/ESA Hubble Space Telescope image is known as NGC 3597. It is the product of a collision between two good-sized galaxies, and is slowly evolving to become a giant elliptical galaxy. This type of galaxy has grown more and more common as the Universe has evolved, with initially small galaxies merging and progressively building up into larger galactic structures over time. NGC 3597 is located approximately 150 million light-years away in the constellation of Crater (The Cup). Astronomers study NGC 3597 to learn more about how elliptical galaxies form — many ellipticals began their lives far earlier in the history of the Universe. Older ellipticals are nicknamed “red and dead” by astronomers because these bloated galaxies are not anymore producing new, bluer, stars in ages, and are thus packed full of old and redder stellar populations. Before infirmity sets in, some freshly formed elliptical galaxies experience a final flush of youth, as is the case with NGC 3597. Galaxies smashing together pool their available gas and dust, triggering new rounds of star birth. Some of this material ends up in dense pockets initially called proto-globular clusters, dozens of which festoon NGC 3597. These pockets will go on to collapse and form fully-fledged globular clusters, large spheres that orbit the centres of galaxies like satellites, packed tightly full of millions of stars.
使用条款	Creative Commons Attribution 4.0 International License
数据生成日期时间	2016年1月11日 (一) 06:00
使用软件	Adobe Photoshop CC 2014 (Windows)
原始文件唯一ID	xmp.did:d05e71f7-c83a-1e4c-a9ca-97e4838cf254
关键词	NGC 3597
联系信息	http://www.spacetelescope.org/ Karl-Schwarzschild-Strasse 2 Garching bei M√ºnchen, , D-85748 Germany
IIM版本	4

File:A galactic mega-merger.jpg

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File:A galactic mega-merger.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

11 1 2016

媒体类型 简体中文（已转写）

image/jpeg

校验和 简体中文（已转写）

f9b0d43661e44a4da93abae283482eacb5d884a5

数据大小 简体中文（已转写）

257,043 字节

高度

1,216 像素

宽度

1,280 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）}

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