Suchergebnisse

SXP 1062 is a Be X-ray binary (BeXB) located in the Small Magellanic Cloud. It hosts a longperiodX- ray pulsar and is likely associated with the supernova remnant MCSNRJ0127-7332. In this work we present a multiwavelength view on SXP 1062 in different luminosity regimes. We consider monitoring campaigns in optical (OGLE survey) and X-ray (Swift telescope). During these campaigns a tight coincidence of X-ray and optical outbursts is observed. We interpret this as typical Type I outbursts as often detected in BeXBs at periastron passage of the neutron star (NS). To study different X-ray luminosity regimes in depth, during the source quiescence we observed it with XMM-Newton while Chandra observations followed an X-ray outburst. Nearly simultaneously with Chandra observations in X-rays, in optical the RSS/SALT telescope obtained spectra of SXP 1062. On the basis of our multiwavelength campaign we propose a simple scenario where the disc of the Be star is observed face-on, while the orbit of the NS is inclined with respect to the disc. According to the model of quasi-spherical settling accretion our estimation of the magnetic field of the pulsar in SXP 1062 does not require an extremely strong magnetic field at the present time.© 2018 The Author(s). ; AGG and LMO are supported by the Deutsches Zentrum fur Luft und Raumfahrt (DLR) grants FKZ 50 OR 1404 and FKZ 50 OR 1508. LMO acknowledging partial support by the Russian Government Program of Competitive Growth of Kazan Federal University. MK acknowledges funding by the Bundesministerium fur Wirtschaft und Technologie under Deutsches Zentrum fur Luft- und Raumfahrt grants 50 OR 1113 and 50 OR 1207. SBP is supported by the Russian Science Foundation grant 14-12-00146. MPES received funding through the Claude Leon Foundation Postdoctoral Fellowship program and the National Research Foundation. ; Peer Reviewed