File:Tycho-supernova-xray.jpg
維基百科,自由的 encyclopedia
![File:Tycho-supernova-xray.jpg](http://upload.wikimedia.org/wikipedia/commons/thumb/1/14/Tycho-supernova-xray.jpg/600px-Tycho-supernova-xray.jpg)
預覽大小:600 × 600 像素。 其他解析度:240 × 240 像素 | 480 × 480 像素 | 768 × 768 像素 | 1,024 × 1,024 像素 | 2,400 × 2,400 像素。
原始檔案 (2,400 × 2,400 像素,檔案大小:609 KB,MIME 類型:image/jpeg)
摘要
描述Tycho-supernova-xray.jpg | Tycho's Supernova Remnant. In 1572, the Danish astronomer Tycho Brahe observed and studied the explosion of a star that became known as Tycho's supernova. More than four centuries later, Chandra's image of the supernova remnant shows an expanding bubble of multimillion degree debris (green and red) inside a more rapidly moving shell of extremely high energy electrons (filamentary blue). As a huge ball of exploding plasma, it was Irving Langmuir who coined the name plasma because of its similarity to blood plasma, and Hannes Alfvén who noted its cellular nature. The filamentary blue outer shell of X-ray emitting high-speed electrons is also a characteristic of plasmas. This is a false-colour x-ray image in which the energy levels (in keV) of the x-rays have been assigned colours as follows: Red 0.95-1.26 keV, Green 1.63-2.26 keV, Blue 4.1-6.1 keV. All x-rays images must use processed colours since x-rays (as are radio waves, infra-red) are invisible to the human eye. But they are not invisible to suitable equipment, such as x-ray telescopes. The red and green bands highlight the expanding cloud of plasma with temperatures in the millions of degrees. |
日期 | 攝於2003年4月29日 |
來源 | http://chandra.harvard.edu/photo/2005/tycho/; see also https://www.flickr.com/photos/smithsonian/2941525398/ |
作者 | NASA/CXC/Rutgers/J.Warren & J.Hughes et al. |
|
授權條款
Public domainPublic domainfalsefalse |
![]() |
本作品由NASA創作,屬於公有領域。根據NASA的版權政策:“NASA的創作除非另有聲明否則不受版權保護。”(參見:Template:PD-USGov/zh,NASA版權政策或JPL圖像使用政策) | ![]() |
![]() |
警告:
|
Old file history
Originally uploaded on the En-Wiki by en:User:Iantresman 12:40, 23 September 2005
說明
添加單行說明來描述出檔案所代表的內容
29 4 2003
檔案歷史
點選日期/時間以檢視該時間的檔案版本。
日期/時間 | 縮圖 | 尺寸 | 使用者 | 備註 | |
---|---|---|---|---|---|
目前 | 2005年12月22日 (四) 21:57 | ![]() | 2,400 × 2,400(609 KB) | Solipsist~commonswiki | Larger 2024x2024 jpeg based on 6.3Mb Tiff at source: http://chandra.harvard.edu/photo/2005/tycho/ |
2005年12月22日 (四) 21:52 | ![]() | 576 × 576(293 KB) | Solipsist~commonswiki | == Summary == '''Tycho's Supernova Remnant'''. In 1572, the Danish astronomer Tycho Brahe observed and studied the explosion of a star that became known as Tycho's supernova. More than four centuries later, Chandra's image of the supernova remnant shows a |
檔案用途
下列3個頁面有用到此檔案:
全域檔案使用狀況
以下其他 wiki 使用了這個檔案:
- af.wikipedia.org 的使用狀況
- ar.wikipedia.org 的使用狀況
- ca.wikipedia.org 的使用狀況
- cs.wikipedia.org 的使用狀況
- da.wikipedia.org 的使用狀況
- de.wikipedia.org 的使用狀況
- en.wikipedia.org 的使用狀況
- Wikipedia:Featured pictures thumbs/01
- SN 1572
- Wikipedia:Today's second feature/December 2005
- Wikipedia:Featured picture candidates/Tycho-supernova.jpg
- Wikipedia:Featured picture candidates/October-2005
- List of supernova remnants
- Wikipedia:POTD/December 24, 2005
- Wikipedia:Today's second feature/December 24, 2005
- Wikipedia:Featured pictures/Space/Looking out
- Wikipedia:Featured picture candidates/delist/2009
- Wikipedia:Featured picture candidates/delist/Tycho-supernova-xray.jpg
- Astrophysical X-ray source
- User:Jamaso
- en.wikiquote.org 的使用狀況
- en.wikiversity.org 的使用狀況
- es.wikipedia.org 的使用狀況
- et.wikipedia.org 的使用狀況
- fa.wikipedia.org 的使用狀況
- fi.wikipedia.org 的使用狀況
- fr.wikipedia.org 的使用狀況
檢視此檔案的更多全域使用狀況。