J/A+A/556/A139ivo://CDS.VizieR/J/A+A/556/A139doi:10.26093/cds/vizier.35560139CDSSturm R.Haberl F.Oskinova L.M.Schurch M.P.E.Henault-Brunet V.,Gallagher J.S.IIIUdalski A.2017-07-03T14:25:26Z2013-08-09T08:05:41ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frx-ray-binary-starsspectroscopyvisible-astronomyThe Be/X-ray binary SXP 1062 is of especial interest owing to the large spin period of the neutron star, its large spin-down rate, and the association with a supernova remnant constraining its age. This makes the source an important probe for accretion physics. To investigate the long-term evolution of the spin period and associated spectral variations, we performed an XMM-Newton target-of-opportunity observation of SXP 1062 during X-ray outburst. Spectral and timing analysis of the XMM-Newton data was compared with previous studies, as well as complementary Swift/XRT monitoring and optical spectroscopy with the SALT telescope were obtained. The spin period was measured to be Ps=(1071.01+/-0.16)s on 2012 Oct 14. The X-ray spectrum is similar to that of previous observations. No convincing cyclotron absorption features, which could be indicative for a high magnetic field strength, are found. The high-resolution RGS spectra indicate the presence of emission lines, which may not completely be accounted for by the SNR emission. The comparison of multi-epoch optical spectra suggest an increasing size or density of the decretion disc around the Be star. SXP 1062 showed a net spin-down with an average of dPs/dt=(2.27+/-0.44)s/yr over a baseline of 915 days.2013A&A...556A.139Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/556/A139CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/MNRAS/353/601 : 2dF survey of the Small Magellanic Cloud (Evans+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/556/A139https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/556/A139http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/556/A139https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/556/A139https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/556/A139http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/556/A139GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+A/556/A139/salt_red*Normalised red spectrum of SXP1062recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[3818/6957] Wavelength in {AA} (redshift corrected)0.1nmem.wldoubleFluxNormalised fluxphot.flux;arith.ratiodoubleJ/A+A/556/A139/salt_blu*Normalised blue spectrum of SXP1062recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintlambda[3818/6957] Wavelength in {AA} (redshift corrected)0.1nmem.wldoubleFluxNormalised fluxphot.flux;arith.ratiodouble