Lêer:Tycho-supernova-xray.jpg

Grootte van hierdie voorskou: 600 × 600 piksels. Ander resolusies: 240 × 240 piksels | 480 × 480 piksels | 768 × 768 piksels | 1 024 × 1 024 piksels | 2 400 × 2 400 piksels.

Oorspronklike lêer ‎(2 400 × 2 400 piksels, lêergrootte: 609 KG, MIME-tipe: image/jpeg)

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Opsomming

BeskrywingTycho-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.
Datum	Taken on 29 April 2003
Bron	http://chandra.harvard.edu/photo/2005/tycho/; see also https://www.flickr.com/photos/smithsonian/2941525398/
Outeur	NASA/CXC/Rutgers/J.Warren & J.Hughes et al.


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Lisensiëring

	This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
	Warnings: Use of NASA logos, insignia and emblems is restricted per U.S. law 14 CFR 1221. The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain. Materials based on Hubble Space Telescope data may be copyrighted if they are not explicitly produced by the STScI.[1] See also {{PD-Hubble}} and {{Cc-Hubble}}. The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2] Images featured on the Astronomy Picture of the Day (APOD) web site may be copyrighted. [3] The National Space Science Data Center (NSSDC) site has been known to host copyrighted content. Its photo gallery FAQ states that all of the images in the photo gallery are in the public domain "Unless otherwise noted."

Old file history

Originally uploaded on the En-Wiki by en:User:Iantresman 12:40, 23 September 2005

Lêergeskiedenis

Klik op die datum/tyd om te sien hoe die lêer destyds gelyk het.

	Datum/Tyd	Duimnael	Dimensies	Gebruiker	Opmerking
huidig	21:57, 22 Desember 2005		2 400 × 2 400 (609 KG)	Solipsist~commonswiki	Larger 2024x2024 jpeg based on 6.3Mb Tiff at source: http://chandra.harvard.edu/photo/2005/tycho/
	21:52, 22 Desember 2005		576 × 576 (293 KG)	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