Binary Stars as the Source of the Far-UV Excess in Elliptical Galaxies
The discovery of an excess of light in the far-ultraviolet (UV) spectrum in elliptical galaxies was a major surprise in 1969. While it is now clear that this UV excess is caused by an old population of hot helium-burning stars without large hydrogen-rich envelopes rather than young stars, their orig...
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格式: | Conference item |
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2007
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