Extinction Curve Toward the Nuclear Region of M82

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Scientific paper

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Scientific paper

We report on the determination of the extinction curve (EC) toward a 30 pc dust spot in the nuclear region of M82. The curve is based on optical spectra of two adjacent regions at 100 and 200 pc distance respectively on the south-west side of the nucleus. The spectra of the two regions seem identical except that one region is experiencing a higher visual extinction than the other (ΔAυ ~ 1mag). We find that the resulting curve is in close agreement with that derived by [1] for a sample of nuclear star-forming galaxies over kiloparsec scales.

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