SIMBAD references

M. Orio and T. Nelson, Istituto Nazionale di Astrofisica and University of Wisconsin, report that RS Oph (cf. IAUC 8671, 8695) was observed with XMM-Newton on Sept. 6 for about 15 hr. The count rate in the range 0.1-10 keV had decreased by more than a factor of 1000 with respect to the last XMM-Newton observation on Apr. 6. The unabsorbed flux is at least 4 x 10**-12 erg cm**-2 s**-1. There is still significant continuum flux below 2 keV, but the spectrum shows mainly strong emission lines. With the RGS spectrograph, several H-like and He-like emission lines of Mg, Ne, and Fe are detected (most notably Ne VII at 2.478 nm, O VIII at 1.896 nm, Ne X at 1.213 nm, and Fe XVII at 1.501 nm). The RGS lines are red-shifted with a velocity not exceeding 500 km/s. Despite the lack of significant flux above 2 keV, two emission lines of the iron triplet K(alpha) complex are detected with EPIC around 6.4-6.7 keV.