View source for G350.1-0.3

{{Infobox nebula
 |name = G350.1-0.3
 |image = G350.1-0.3 (NASA).jpg
 |caption = Supernova remnant G350.1-0.3
 |credit = NASA
 |type = supernova remnant
 |epoch = [[J2000]]
 |class = 
 |ra = {{RA|17|21|01}}<ref name=SIMBAD>{{cite simbad|title=MSC 350.1-0.3|accessdate=26 November 2017}}</ref>
 |dec = {{DEC|-37|26.0}}<ref name=SIMBAD/>
 |dist_ly = 15000<ref name=ESA/>
 |dist_pc = 4600
 |dist_z = 
 |appmag_v = 
 |appdia = <!-- dd°mm'ss".mas -->
 |size_v = 
 |constellation = [[Scorpius (constellation)|Scorpius]]
 |radius_ly = 8<ref name=ESA/>
 |radius_pc = 2
 |dimensions = 
 |absmag_v = 
 |names = 
}}
'''G350.1-0.3''' is a [[supernova remnant]] which is located in the [[constellation]] [[Scorpius]]. It is in the [[Milky Way]], and possibly associated with a [[neutron star]] (XMMU J172054.5-372652) formed in the same [[supernova]] explosion. The object was formerly mistakenly classified as a distant [[galaxy]].<ref name=ESA/><ref name="UniToday">{{Cite web |last=O'Neill |first=Ian |date=2008-06-11 |title=XMM-Newton Discovers Strange-Shaped Supernova Remnant |url=https://www.universetoday.com/14975/xmm-newton-discovers-strange-shaped-supernova-remnant/ |access-date=2024-09-06 |website=Universe Today |language=en-US}}</ref>

G350.1-0.3, a bright [[Astronomical radio source|radio source]] in the inner Milky Way, was initially identified by comparing observations from the [[Molonglo Observatory Synthesis Telescope]] and [[Parkes Observatory]] and classified as a supernova remnant in publications from 1973<ref>{{Cite journal |last1=Clark |first1=D. H. |last2=Caswell |first2=J. L. |last3=Green |first3=Anne J. |date=November 1973 |title=New Galactic Supernova Remnants |journal=Nature |language=en |volume=246 |issue=5427 |pages=28–30 |doi=10.1038/246028a0 |bibcode=1973Natur.246...28C |issn=0028-0836}}</ref> and 1975.<ref name="TAJL">{{Cite journal |last1=Gaensler |first1=B. M. |last2=Tanna |first2=A. |last3=Slane |first3=P. O. |last4=Brogan |first4=C. L. |last5=Gelfand |first5=J. D. |last6=McClure-Griffiths |first6=N. M. |last7=Camilo |first7=F. |last8=Ng |first8=C.-Y. |last9=Miller |first9=J. M. |date=2008-06-10 |title=The (Re-)Discovery of G350.1-0.3: A Young, Luminous Supernova Remnant and Its Neutron Star |journal=The Astrophysical Journal |language=en |volume=680 |issue=1 |pages=L37–L40 |arxiv=0804.0462 |bibcode=2008ApJ...680L..37G |doi=10.1086/589650 |issn=0004-637X |s2cid=15762045}}</ref> However, later higher-resolution images in the mid-80s revealed an unexpected irregular morphology that differed substantially from other supernova remnant sources.<ref name=TAJL/><ref name="ESA">{{Cite web |title=Detective astronomers unearth hidden celestial gem |url=https://www.esa.int/Science_Exploration/Space_Science/Detective_astronomers_unearth_hidden_celestial_gem |access-date=2024-09-06 |website=[[European Space Agency]] |language=en}}</ref> It was then argued that G350.1-0.3 was a [[radio galaxy]] or a [[galaxy cluster]], resulting in a reclassification in which supernova remnant catalogues downgraded the object to "supernova remnant candidate" or dropped it completely; G350.1-0.3 was subsequently "forgotten".<ref name=TAJL/>

Research published in 2008<ref name=TAJL/> combined archival data and new images from [[XMM-Newton]], the [[European Space Agency]]'s orbiting x-ray telescope, to demonstrate that G350.1-0.3 is a supernova remnant.<ref name=UniToday/><ref name=ESA/> The researchers determined that the object's odd shape resulted from exploding next to a dense gas cloud, approximately 15,000 [[light year]]s from Earth, that prevented even expansion and produced its elongated shape.<ref name=ESA/> The researchers also determined that the nearby thermal [[X-ray]] source, XMMU J172054.5-372652, is a [[central compact object]] of the supernova.<ref name=TAJL/>

G350.1-0.3 is eight light years across and about 900&ndash;1000 years old, making one of the youngest and brightest supernova remnants in the Milky Way. It is unlikely that humans would have seen the supernova explosion because intervening interstellar dust would have likely prevented its viewing from Earth.<ref name=ESA/>

==References==
{{reflist}}

==External links==
*{{Cite podcast |url=https://www.abc.net.au/listen/programs/scienceshow/supernovae-and-the-fusing-of-elements/3174486 |title=Supernovae and the fusing of elements |website=The Science Show |publisher=[[ABC Radio National]] |last=Williams |first=Robyn |date=2008-11-22 |language=en-AU |access-date=2024-09-06}}

[[Category:Supernova remnants]]
[[Category:Scorpius]]