SIMBAD references

60% of the known galactic symbiotic stars are sufficiently X-ray bright to be detected in pointed ROSAT PSPC observations. We present observations of 16 symbiotic stars. We encounter three classes of pulse height distibutions: α) supersoft emission from the atmosphere of the hot star, β) emission from an optically thin plasma with a temperature of a few 10⁶K, and γ) even harder emission, as from an accreting neutron star. In the present Paper we analyze the objects of type β in more detail. We find plasma temperatures ranging from 3x10⁶K to 15x10⁶K and luminosities from 2x10^–4L_☉ to 0.4L_☉.