Paper:	U Sco in the Context of SN Ia Progenitors
Volume:	447, Evolution of Compact Binaries
Page:	311
Authors:	Mason, E.
Abstract:	This contributed talk presented the preliminary analysis of the U Sco nebular spectra observed in March and April 2010. The spectra show that U Sco is somehow different from the prototype object we always believed, first, because of the presence of strong forbidden transitions, and second, because their flux ratio suggests that the recurrent nova hosts an ONeMg white dwarf. This makes U Sco unsuitable as SN Ia progenitor.

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