NASA/IPAC EXTRAGALACTIC DATABASE
Date and Time of the Query: 2019-07-20 T09:21:19 PDT
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For refcode 2016MNRAS.457.1101T:
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Copyright by Royal Astronomical Society. 2016MNRAS.457.1101T Propeller effect in action in the ultraluminous accreting magnetar M82 X-2 Tsygankov, Sergey S.; Mushtukov, Alexander A.; Suleimanov, Valery F.; Poutanen, Juri Abstract. We present here the first convincing observational manifestation of a magnetar-like magnetic field in an accreting neutron star in binary system - the first pulsating ultraluminous X-ray source X-2 in the galaxy M82. Using the Chandra X-ray observatory data, we show that the source exhibit the bimodal distribution of the luminosity with two well-defined peaks separated by a factor of 40. This behaviour can be interpreted as the action of the 'propeller regime' of accretion. The onset of the propeller in a 1.37 s pulsar at luminosity of ~10^40^ erg s^-1^ implies the dipole component of the neutron star magnetic field of ~10^14^ G. Key words: accretion, accretion discs, magnetic fields, stars: individual: M82 X-2, stars: magnetars, X-rays: binaries
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