Editing Magnetar (section)

==Known magnetars==
[[Image:SGR 1806-20 108530main cloudballPrint.jpg|right|thumb|On 27 December 2004, a burst of gamma rays from [[SGR 1806−20]] passed through the Solar System (''artist's conception shown''). The burst was so powerful that it had effects on Earth's atmosphere, at a range of about 50,000 [[light-year]]s.]]
{{As of|2021|07}}, 24 magnetars are known, with six more candidates awaiting confirmation.<ref name="mcgill"/> A full listing is given in the [[McGill University|McGill]] SGR/AXP Online Catalog.<ref name="mcgill">{{cite web|url=http://www.physics.mcgill.ca/~pulsar/magnetar/main.html|title=McGill SGR/AXP Online Catalog|access-date=26 Jan 2021}}</ref> Examples of known magnetars include:
* [[SGR 0525−66]], in the [[Large Magellanic Cloud]], located about 163,000 light-years from Earth, the first found (in 1979)
* [[SGR 1806−20]], located 50,000 light-years from Earth on the far side of the Milky Way in the constellation of [[Sagittarius (constellation)|Sagittarius]] and the most magnetized object known.
* [[SGR 1900+14]], located 20,000 light-years away in the constellation [[Aquila (constellation)|Aquila]]. After a long period of low emissions (significant bursts only in 1979 and 1993) it became active in May–August 1998, and a burst detected on August 27, 1998, was of sufficient power to force [[NEAR Shoemaker]] to shut down to prevent damage and to saturate instruments on [[BeppoSAX]], [[Wind (spacecraft)|WIND]] and [[RXTE]]. On May 29, 2008, NASA's [[Spitzer Space Telescope]] discovered a ring of matter around this magnetar. It is thought that this ring formed in the 1998 burst.<ref>{{cite web|url=https://science.nasa.gov/headlines/y2008/29may_magnetar.htm?list793087|archive-url=https://archive.today/20120721140241/http://science.nasa.gov/headlines/y2008/29may_magnetar.htm?list793087|url-status=dead|archive-date=2012-07-21|title=Strange Ring Found Around Dead Star}}</ref>
*[[SGR 0501+4516]] was discovered on 22 August 2008.<ref name="nasa.gov">{{Cite web|url=https://www.nasa.gov/mission_pages/swift/bursts/magnetar_europe.html|title=NASA - European Satellites Probe a New Magnetar|website=www.nasa.gov}}</ref>
* [[AXP 1E 1048-59|1E 1048.1−5937]], located 9,000 light-years away in the constellation [[Carina (constellation)|Carina]]. The original star, from which the magnetar formed, had a mass 30 to 40 times that of the [[Sun]].
* {{As of|2008|9}}, ESO reports identification of an object which it has initially identified as a magnetar, [[SWIFT J195509+261406]], originally identified by a gamma-ray burst (GRB 070610).<ref name="eso.org"/>
* [[CXO J164710.2-455216]], located in the massive galactic cluster [[Westerlund 1]], which formed from a star with a mass in excess of 40 solar masses.<ref>{{Cite web|url=https://chandra.harvard.edu/photo/2005/wd1/|title=Chandra :: Photo Album :: Westerlund 1 :: 02 Nov 05|website=chandra.harvard.edu}}</ref><ref name=eso>{{Cite web|url=https://www.eso.org/public/news/eso1415/|title=Magnetar Formation Mystery Solved?|website=www.eso.org}}</ref><ref>Wood, Chris. "[http://www.gizmag.com/vlt-magnetar-mystery-solved/32101/ Very Large Telescope solves magnetar mystery]" ''GizMag'', 14 May 2014. Accessed: 18 May 2014.</ref>
*SWIFT J1822.3 Star-1606 discovered on 14 July 2011 by Italian and Spanish researchers of [[Spanish National Research Council|CSIC]] at Madrid and Catalonia. This magnetar contrary to previsions has a low external magnetic field, and it might be as young as half a million years.<ref name="arxiv.org">[https://arxiv.org/abs/1211.7347 ''A new low-B magnetar'']</ref>
*3XMM J185246.6+003317, discovered by international team of astronomers, looking at data from ESA's XMM-Newton [[X-ray telescope]].<ref>{{Cite journal|last1=Rea|first1=N.|last2=Viganò|first2=D.|last3=Israel|first3=G. L.|last4=Pons|first4=J. A.|last5=Torres|first5=D. F.|date=2014-01-01|title=3XMM J185246.6+003317: Another Low Magnetic Field Magnetar|url=http://adsabs.harvard.edu/abs/2014ApJ...781L..17R|journal=The Astrophysical Journal Letters|volume=781|issue=1|pages=L17|doi=10.1088/2041-8205/781/1/L17|arxiv=1311.3091|bibcode=2014ApJ...781L..17R|hdl=10045/34971|s2cid=118736623|issn=0004-637X}}</ref>
* [[SGR 1935+2154]], emitted a pair of luminous radio bursts on 28 April 2020. There was speculation that these may be galactic examples of [[fast radio burst]]s.
* [[Swift J1818.0-1607]], X-ray burst detected March 2020, is one of five known magnetars that are also radio pulsars. By its time of discovery, it may be only 240 years old.<ref name=N2020-113>{{Cite web|url=https://www.jpl.nasa.gov/news/a-cosmic-baby-is-discovered-and-its-brilliant|title=A Cosmic Baby Is Discovered, and It's Brilliant|website=NASA Jet Propulsion Laboratory (JPL)}}</ref><ref name="PHYS-20210108">{{cite news |author=[[Harvard-Smithsonian Center for Astrophysics]] |title=Chandra observations reveal extraordinary magnetar |url=https://phys.org/news/2021-01-chandra-reveal-extraordinary-magnetar.html |date=8 January 2021 |work=[[Phys.org]] |access-date=8 January 2021 }}</ref>

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! Magnetar—[[SGR J1745-2900]]
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| style="font-size:88%" | [[File:Magnetar-SGR1745-2900-20150515.jpg|400px]]
{{center|Magnetar found very close to the [[supermassive black hole]], [[Sagittarius A*]], at the center of the [[Milky Way]] [[galaxy]]}}
|}