تقرير
A multi-wavelength study of SXP 1062, the long period X-ray pulsar associated with a supernova remnant
| العنوان: | A multi-wavelength study of SXP 1062, the long period X-ray pulsar associated with a supernova remnant |
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| المؤلفون: | Gonzalez-Galan, A., Oskinova, L. M., Popov, S. B., Haberl, F., Kuehnel, M., Gallagher III, J. S., Schurch, M. P. E., Guerrero, M. A. |
| سنة النشر: | 2017 |
| المجموعة: | Astrophysics |
| مصطلحات موضوعية: | Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Solar and Stellar Astrophysics |
| الوصف: | SXP 1062 is a Be X-ray binary located in the Small Magellanic Cloud. It hosts a long-period X-ray pulsar and is likely associated with the supernova remnant MCSNR J0127-7332. In this work we present a multi-wavelength 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 Be X-ray binaries at periastron passage of the neutron star. 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 multi-wavelength campaign we propose a simple scenario where the disc of the Be star is observed face-on, while the orbit of the neutron star 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. Comment: accepted for publication in MNRAS |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1093/mnras/stx3127 |
| URL الوصول: | http://arxiv.org/abs/1706.05002 |
| رقم الأكسشن: | edsarx.1706.05002 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1093/mnras/stx3127 |
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