The emission-line spectrum of the hot R Coronae Borealis star MV Sgr

Spectra of MV Sgr obtained at CTIO in 1992 May show many emission lines in the red. Most of the emission lines show two components with a minimum centred at the stellar velocity. Species represented include H, He I, Ti II and Fe n. Of special interest is emission in the Li I 6707-Å resonance doublet. [O I] and [N II] emission indicate the presence of a nebula around the star. The radial velocity of the absorption lines (Al III, Si III, N II and C II) and Fe II emission lines agrees with the radial velocity given by Jeffery et al.