SIMBAD references

M. Della Valle, Arcetri Astrophysical Observatory, Florence; and E. Mason, L. Pasquini, and J. Prichard, European Southern Observatory, write: "Preliminary analysis of a spectrum (range 380-900 nm, resolution 48000), obtained on July 18.2 UT at La Silla with the 2.2-m telescope (+ Fiber-fed Extended Range Optical Spectrograph), shows the new object to be a nova caught during its early decline. The spectrum is dominated by H_alpha, O I (mult. 1, 4; measured at 778.0 and 844.0 nm), and Ca II (mult. 2; measured at 850, 855, and 866 nm). H_alpha, H_beta, and Na I lines are flanked by multiple P-Cyg profiles whose minimum absorptions give maximum expansion velocities of about 1700, 1900, and 1500 km/s, respectively. Also prominent are emission lines due to Fe II (mult. 42, 48, 49, 74). In particular, we note that the 493-nm line (mult. 42) is as strong as H_beta. [O I] at 630 and 636.4 nm and He I at 667.8 nm are also detected. The equivalent widths of the Na D interstellar lines (0.085 and 0.07 nm) and Ca II H and K (0.04 and 0.06 nm) may suggest that this nova suffers form moderate absorption."