SIMBAD references

A. Siviero and U. Munari, Istituto Nazionale di Astrofisica, Padova-Asiago, write that spectra (range 335-765 nm; dispersion 0.23 nm/pixel) of RS Oph were obtained on Apr. 22.04 UT with the 1.22-m telescope at Asiago. The spectra were fluxed into absolute units (erg/cm**2/s/A), to produce meaningful measured intensity ratios. The coronal emission lines are close to their maximum intensity, as happened similarly during the 1985 outburst at about 60-70 days past maximum. The strongest such lines are as follows, with the values in parentheses being the integrated flux with respect to that of H_beta, which itself is 4.0 x 10**(-11) erg/cm**2/s/A: [Ni XII] 423.0-nm (0.048), [Ar XIV] 441.3-nm (0.036), [Ni XIII] 511.6-nm (0.018), [Co XI] 516.8-nm (0.066), [Fe XIV] 530.3-nm (0.197), [Ar X] 553.3-nm (0.156), [Fe X] 637.5-nm (0.842), [Ar XI] 691.7-nm (0.074).