First precise determination of an exctinction curve from the optical to the far UV

The extinction curve observed, compared with that of the LMC (solid line) and the Milky Way (dotted line).
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Using a gravitational lens, the first precise determination of the extinction curve from the optical to the far UV has been carried out in a galaxy outside the Local Group (a z=0,83). It has turned out to be approximately the same as that observed at the LMC and different from that of our galaxy. These studies reveal the properties of interstellar dust in distant galaxies (Mediavilla et al., 2005, ApJ 619, 749).

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