PROPER MOTIONS AND ORIGINS OF AXP 1E 2259+586 AND AXP 4U 0142+61

@article{Tendulkar2013PROPERMA,
  title={PROPER MOTIONS AND ORIGINS OF AXP 1E 2259+586 AND AXP 4U 0142+61},
  author={S. Tendulkar and P. B. Cameron and S. Kulkarni},
  journal={The Astrophysical Journal},
  year={2013},
  volume={772},
  pages={31}
}
Using high-resolution NIR images supported by laser guide star adaptive optics from the Keck II telescope from 2005 to 2012, we have measured the proper motions of two anomalous X-ray pulsars, AXP 1E 2259+586 and AXP 4U 0142+61. The proper motion of AXP 1E 2259+586 in the sky frame is (μ_α, μ_δ) = (– 6.4 ± 0.6, –2.3 ± 0.6) mas yr^(–1) and that of AXP 4U 0142+61 is (μ_α, μ_δ) = (– 4.1 ± 1, 1.9 ± 1) mas yr^(–1). After correcting for the velocity of the progenitors, we calculate the tangential… Expand
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