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- W2087788005 abstract "A sequence of three Chandra X-ray Observatory High Resolution Camera images taken over a span of five years reveals arc-second-scale displacement of RX J0822-4300, the stellar remnant (presumably a neutron star) near the center of the Puppis A supernova remnant. We measure its proper motion to be 0.165+/-0.025 arcsec/yr toward the west-southwest. At a distance of 2 kpc, this corresponds to a transverse space velocity of ~1600 km/s. The space velocity is consistent with the explosion center inferred from proper motions of the oxygen-rich optical filaments, and confirms the idea that Puppis A resulted from an asymmetric explosion accompanied by a kick that imparted roughly 3*10^49 ergs of kinetic energy (some 3 percent of the kinetic energy for a typical supernova) to the stellar remnant. We discuss constraints on core-collapse supernova models that have been proposed to explain neutron star kick velocities." @default.
- W2087788005 created "2016-06-24" @default.
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- W2087788005 date "2007-11-20" @default.
- W2087788005 modified "2023-10-16" @default.
- W2087788005 title "Direct Measurement of Neutron Star Recoil in the Oxygen‐rich Supernova Remnant Puppis A" @default.
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- W2087788005 doi "https://doi.org/10.1086/522101" @default.
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