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1 results

  • Up and downs of a magnetic oblique rotator viewed at high resolution

  • Y. Nazé, S. A. Zhekov, A. ud-Doula
  • Journal:
    Proceedings of the International Astronomical Union / Volume 12 / Issue S329 / November 2016
    Published online by Cambridge University Press:
    28 July 2017, p. 429
    Print publication:
    November 2016
    • Article
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  • In 2006, the Of?p star HD191612 became the second O-star where a magnetic field was discovered. It provided a benchmark to understand the Of?p phenomenon as a whole. Ten years later, an X-ray monitoring performed at high-resolution reveals the behaviour of the hottest magnetospheric plasma: it is located at ~ 2R⊙, hot but not extreme (log(T) ~ 7), producing unshifted lines, and displaying a very repetitive variability. A direct comparison with simulations yields an overall good agreement, with only a few further improvements needed.