<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Vasilopoulos, G.</style></author><author><style face="normal" font="default" size="100%">Maggi, P.</style></author><author><style face="normal" font="default" size="100%">Haberl, F.</style></author><author><style face="normal" font="default" size="100%">Sturm, R.</style></author><author><style face="normal" font="default" size="100%">Pietsch, W.</style></author><author><style face="normal" font="default" size="100%">Bartlett, E. S.</style></author><author><style face="normal" font="default" size="100%">Coe, M. J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Swift J053041.9-665426, a new Be/X-ray binary pulsar in the Large Magellanic Cloud</style></title><short-title><style face="normal" font="default" size="100%">Astronomy and Astrophysics</style></short-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Astrophysics - High Energy Astrophysical Phenomena</style></keyword><keyword><style  face="normal" font="default" size="100%">Be</style></keyword><keyword><style  face="normal" font="default" size="100%">galaxies: individual: Large Magellanic Cloud</style></keyword><keyword><style  face="normal" font="default" size="100%">pulsars: individual: Swift J053041.9-665426</style></keyword><keyword><style  face="normal" font="default" size="100%">stars: emission-line</style></keyword><keyword><style  face="normal" font="default" size="100%">stars: neutron</style></keyword><keyword><style  face="normal" font="default" size="100%">X-rays: binaries</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2013</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2013/10/1</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://ui.adsabs.harvard.edu/abs/2013A&amp;A...558A..74V</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">558</style></volume><pages><style face="normal" font="default" size="100%">A74</style></pages><isbn><style face="normal" font="default" size="100%">0004-6361</style></isbn><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;BR /&gt; Aims: We observed the newly discovered X-ray source Swift J053041.9-665426in the X-ray and optical regime to confirm its proposed nature as a high mass X-ray binary. &lt;BR /&gt; Methods: We obtained XMM-Newton and Swift X-ray data, along with optical observations with the ESO Faint Object Spectrograph, to investigate the spectral and temporal characteristics of Swift J053041.9-665426. &lt;BR /&gt; Results: The XMM-Newton data show coherent X-ray pulsations with a period of 28.77521(10) s (1σ). The X-ray spectrum can be modelled by an absorbed power law with photon index within the range 0.76 to 0.87. The addition of a black body component increases the quality of the fit but also leads to strong dependences of the photon index, black-body temperature and absorption column density. We identified the only optical counterpart within the error circle of XMM-Newton at an angular distance of ~0.8'', which is &lt;ASTROBJ&gt;2MASS J05304215-6654303&lt;/ASTROBJ&gt;. We performed optical spectroscopy from which we classify the companion as a B0-1.5Ve star. &lt;BR /&gt; Conclusions: The X-ray pulsations and long-term variability, as well as the properties of the optical counterpart, confirm that &lt;ASTROBJ&gt;Swift J053041.9-665426&lt;/ASTROBJ&gt; is a new Be/X-ray binary pulsar in the Large Magellanic Cloud. &lt;P /&gt;Based on observations with XMM-Newton, an ESA Science Mission with instruments and contributions directly funded by ESA Member states and the USA (NASA).</style></abstract></record></records></xml>