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Super Soft X-ray Sources - Discovered with ROSAT
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The new class of super soft X-ray sources (SSS) and the Galactic foreground
stars emerge yellow or red. The nearly five million-degree interstellar
gas in the LMC is manifested by the diffuse green emission.
SSS are thought to be white dwarfs accreting matter from a binary companion
star with a rate sufficient to produce steady nuclear burning on the white
dwarf surface. In contrast to other accreting
X-ray binaries, where the gravitational potential energy powers the
X-ray source, nuclear burning is the primary energy source in SSS.
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The ROSAT survey of a 13.5° × 15.5°
region in the Large Magellanic Cloud. Here, the energy picture is given.
516 X-ray sources were discovered.
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Greiner, J., G. Hasinger, and P. Kahabka,
Rosat observation of two supersoft sources in the large magellanic cloud,
Astro. & Astrophys. 246, L17-L20 (1991)
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