086316

V2731 Oph is an intermediate polar with a complex X-ray spectrum including a hot openParkTvirgul100 eVclosePar blackbody component comma according to a previous short XMM-Newton observation comma indicative of a locally super-Eddington accretion rate. However comma it is possible that the temperature measurement was incorrect because V2731 Oph is overabundant in nitrogen comma which went unnoticed in the previous analysis due to the lack of high S-N RGS spectrum. If overabundance is confirmed comma it can both solve the hot blackbody puzzle and have important implications on the past evolutionary history of V2731 Oph. We therefore propose a much longer XMM-Newton observation to obtain high quality RGS data. We also request a simultaneous NuSTAR observation to break potential degeneracies among soft and hard component parameters.