Fig. 3.
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Detection of the presence of weak emission lines in the spectra of T CrB based on subtracting the scaled spectrum of an M3III template. Top panel: Portion of Asiago 1.22m + B&C + 300 ln/mm spectra of T CrB and the M3III template HD 112300. Lower panel: Subtracted spectrum revealing the presence of emission lines other than Hβ. The ordinates are given in 10−13 erg cm−2 s−1 Å−1 in both panels.
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