SIMBAD references

Puetter, Rudy, Lynch, Mazuk, Venturini, and Perry add that their NIRIS observations of V2574 Oph (cf. IAUC 8323, 8324) on June 23.4 UT show that the nova is still in its low-excitation phase, showing lines of C I, N I, and Fe II. No He II or coronal lines are seen. The Balmer, Paschen, and Bracket lines are strong, as are the Lyman_beta-fluoresced O I lines at 0.8446 and 1.1287 microns. The lines are approximately gaussian in shape but are asymmetric near their peaks (FWHM approximately 1500 km/s). The slow development of this nova suggests that continued monitoring should be possible for several years.