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Fig. 9.

Optical/NIR SED of V426 Sge during quiescent phase. The observed SED (low-resolution spectrum and UBVRCICJHKL photometry) is matched by a synthetic spectrum, corresponding to spectral type M4.8 (top) and M4.6 (bottom) or Teff ∼ 3400 K (see Sect. 3.6).
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