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Infrared light from wandering stars

An explanation has been proposed for the observed excess of cosmic light at infrared wavelengths. It invokes stars that are cast into the dark-matter haloes of their parent galaxies during powerful galaxy collisions. See Letter p.514

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Figure 1: Galaxy collision.



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Correspondence to Andrea Ferrara.

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Ferrara, A. Infrared light from wandering stars. Nature 490, 494–495 (2012).

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