The proper motion and energy distribution of the isolated neutron star RX J0720.4–3125

@article{Motch2003ThePM,
  title={The proper motion and energy distribution of the isolated neutron star RX J0720.4–3125},
  author={Christian Motch and Vyacheslav E. Zavlin and Frank Haberl},
  journal={Astronomy and Astrophysics},
  year={2003},
  volume={408},
  pages={323-330}
}
ESO 4 m class telescope and VLT deep imaging of the isolated neutron star RX J0720.4-3125 reveals a proper motion of µ = 97 ± 12 mas/yr and a blue U − B color index. We show that a neutron star atmosphere model modified to account for a limited amount of hydrogen on the star's surface can well represent both the optical and X-ray data without invoking any additional thermal component. The large proper motion almost completely excludes the possibility that accretion from the interstellar medium… Expand

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