X-raying an Odd Radio Circle near the LMC
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We propose a deep 100 ks observation of the Odd Radio Circle (ORC) J06246948, alowsurface brightness radio ring, lying between the Galactic plane and theLarge Magellanic Cloud (LMC).With a diameter of 3.3 arcmin, a flatter radio spectral index, the lack of aprominent central galaxy as a possible host, and a larger apparent size comparedto other ORCs, it is likely a supernova remnant in a rarefied environment,either from an isolated type Ia SN or a hypervelocity runaway massive star.The proposed observation will look for the faint extended Xray counterpartexpected, providing key physical parameters such as age and ambient density, andhelp to ascertain the type of progenitor. Alternative scenarios can be explored by characterising the pointsource population within the ORC. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]



