![A Neutron Star with a Massive Progenitor in Westerlund 1]()
A Neutron Star with a Massive Progenitor in Westerlund 1Muno, Michael P.; Clark, J. Simon; Crowther, Paul A.; Dougherty, Sean M.; de Grijs, Richard; Law, Casey; McMillan, Stephen L. W.; Morris, Mark R.; Negueruela, Ignacio; Pooley, David; Portegies Zwart, Simon; Yusef-Zadeh, Farhad · The Astrophysical Journal · 2006