File:Chandra-crab.jpg

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原始文件 ‎（2,400 × 2,400像素，文件大小：314 KB，MIME类型：image/jpeg）

摘要

描述 A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. The size of the X-ray image is smaller because the higher energy X-ray emitting electrons radiate away their energy more quickly than the lower energy optically emitting electrons as they move.
日期
来源 https://hubblesite.org/contents/media/images/2002/24/1248-Image.html
作者 Optical: NASA/HST/ASU/J. Hester et al. X-Ray: NASA/CXC/ASU/J. Hester et al.

许可协议

Public domain This file is in the public domain because it was created by NASA and ESA. NASA Hubble material (and ESA Hubble material prior to 2009) is copyright-free and may be freely used as in the public domain without fee, on the condition that only NASA, STScI, and/or ESA is credited as the source of the material. This license does not apply if ESA material created after 2008 or source material from other organizations is in use.
The material was created for NASA by Space Telescope Science Institute under Contract NAS5-26555, or for ESA by the Hubble European Space Agency Information Centre. Copyright statement at hubblesite.org or 2008 copyright statement at spacetelescope.org. For material created by the European Space Agency on the spacetelescope.org site since 2009, use the {{ESA-Hubble}} tag.
Public domain 本文件完全由NASA创作，在美国属于公有领域。根据NASA的版权方针，NASA的材料除非另有声明否则不受版权保护。（参见Template:PD-USGov/zh、NASA版权方针页面或JPL图片使用方针。）
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A composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed.

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3639d579c6f43994e84a1cfb06ddf9dc887b03ef

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321,787 字节

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2,400 像素

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2,400 像素

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当前2005年7月24日 (日) 16:542005年7月24日 (日) 16:54版本的缩略图2,400 × 2,400（314 KB）JuloA composite image of the Crab Nebula showing the X-ray (blue), and optical (red) images superimposed. The size of the X-ray image is smaller because the higher energy X-ray emitting electrons radiate away their energy more quickly than the lower energy op

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取自“https://zh.wikipedia.org/wiki/File:Chandra-crab.jpg”