SIMBAD references

1994PASP..106..616S - Publ. Astron. Soc. Pac., 106, 616-618 (1994/June-0)

Ginga and ROSAT observations of the cataclysmic variable S 193.

SZKODY P., GARNAVICH P., CASTELAZ M. and MAKINO F.

Abstract (from CDS):

The cataclysmic variable S193 was observed with the Ginga and ROSAT satellites along with ground-based optical observations. The bremsstrahlung temperatures and the column densities derived from these two observations are noticeably different. However, since the observations were separated by 3 years and took place at different optical magnitudes, it is not clear whether this is related to an intrinsic change in the system or to a two component source of X-rays. While the x-ray data are not sufficient to accomplish a detailed analysis for periodicities, the Ginga data place an upper limit of 40% on the amplitude of any sinusoidal modulation.

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