<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Vasilopoulos, Georgios</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A pulsating, possible type Ia supernova progenitor in the Large Magellanic</style></title><short-title><style face="normal" font="default" size="100%">XMM-Newton Proposal</style></short-title></titles><dates><year><style  face="normal" font="default" size="100%">2016</style></year><pub-dates><date><style  face="normal" font="default" size="100%">2016/10/1</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">https://ui.adsabs.harvard.edu/abs/2016xmm..prop..115V</style></url></web-urls></urls><pages><style face="normal" font="default" size="100%">115</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">We request a 50 ks observation of a pulsating (P~170 s), accretingwhite dwarf binary located in the Large Magellanic Cloud. The systemwas serendipitously detected off-axis during analysis of an archivalXMM-Newton observation (2013) that was severely contaminated by highbackground. Such objects are thought to be candidates for the progenitorsof type Ia supernovae, or may alternatively undergo accretion-inducedcollapse to form the neutron stars in some millisecond pulsars. Thenature of their short period oscillations remains unknown. The on-axisXMM-Newton observation proposed below would deliver a much improvedspectrum, allowing precise characterisation of the system.</style></abstract></record></records></xml>