SIMBAD references

M. Orio, Italian National Institute for Astrophysics, Turin, and University of Wisconsin; and E. Tepedelenlioglu, University of Wisconsin, report that V4743 Sgr was observed with the XMM-Newton satellite beginning on Sept. 30.783 UT for about 6.2 hr (two years after the optical outburst). The EPIC-pn background-corrected count rate was 0.347 ± 0.007 counts/s in the range 0.3-10 keV in timing mode, while count rates of 0.101 ± 0.002 and 0.107 ± 0.002 counts/s were measured with EPIC-MOS-1 and EPIC-MOS-2, respectively, in the range 0.2-10 keV. The average absorbed flux in the range 0.2-10 keV is about 1.3 x 10**-12 erg cm**-2 s**-1, a factor of 1000 lower than the flux measured in March and April 2003 (IAUC 8107, 8131). The nova still appears as a supersoft x-ray source, and deep absorption features due to N VII and N VI are still detected, but there is also a hard component, possibly due to the ejecta. Preliminary results from the lightcurve analysis show again several peaks in the power spectrum, the highest of them at the frequency corresponding to a 1365-s period.