Editing PSR J0737−3039 (section)

===Unique origin===
In addition to the importance of this system to tests of general relativity, [[Tsvi Piran|Piran]] and [[Nir Shaviv|Shaviv]] have shown that the young pulsar in this system must have been born with no mass ejection, implying a new process of [[neutron star]] formation that does not involve a supernova.<ref>{{cite journal |first1=T. |last1=Piran |first2=N. |last2=Shaviv |s2cid=42212345 |title=Origin of the Binary Pulsar J0737−3039B |journal= Physical Review Letters|volume=95 |issue= 5|pages=051102 |year=2005 |doi=10.1103/PhysRevLett.94.051102 |pmid=15783626 |arxiv=astro-ph/0409651 |bibcode=2005PhRvL..94e1102P }}</ref> Whereas the standard supernova model predicts that the system will have a proper motion of more than hundred km/s, they predicted that this system would not show any significant proper motion. Their prediction was later confirmed by pulsar timing.<ref>{{cite journal |first1=M. |last1=Kramer |first2=I. H. |last2=Stairs |first3=R. N. |last3=Manchester |first4=M. A. |last4=McLaughlin |first5=A. G. |last5=Lyne |display-authors=1 |title=Strong-field tests of gravity with the double pulsar |journal=[[Annalen der Physik]] |volume=15 |issue=1–2 |pages=34–42 |year=2006 |doi=10.1002/andp.200510165 |bibcode=2006AnP...518...34K |s2cid=55380143 }}</ref>