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XMM-Newton Examines Andromeda Galaxy Bulge

In a paper to be published in the Monthly Notices of the Royal Astronomical Society, available online now here, astronomers report on their use of x-ray spectroscopy with the European Space Agency’s (ESA) XMM-Newton spacecraft the bulge of the Andromeda Galaxy also known as M31. The astronomers conclude that “the results indicate that iron ejecta of type Ia supernovae are partly-mixed with the hot gas.” Type Ia supernovae are those supernovae produced within a binary star system, whose white dwarf component has gone supernova.

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December 2014
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