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Fig. 1


Top: first NOT spectrum of Nova Mon 2012, from Aug. 16. Bottom: late stage optical spectra from 1999 of V382 Vel from Della Valle et al. (2002) shown for comparison. It was based on the comparison of these three spectra with the Aug. 16 observation that the Fermi-LAT γ-ray transient was identified with the peak of the outburst (Cheung et al. 2012a,b).

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