Monitoring the decay of RS Ophiuchi

RS Ophiuchi is a recurrent nova and a symbiotic binary system that is thought tohost a very massive white dwarf on the verge of the Chandrasekhar limit, and bea type Ia supernova candidate. In February of this year, RS Ophiuchi had anoutburst attributed to a thermonuclear runaway and has been monitored at allwavelength, including Xrays with RXTE, Swift, Chandra and XMMNewton.XMmNewton is the only telescope that is best suited to follow the decay andreturn to quiescence of this interesting system, completing the puzzling and inmany ways revolutionary picture offered in outburst. truncated!, Please see actual data for full text [truncated!, Please see actual data for full text]