ar X iv : a st ro - p h / 03 06 45 9 v 1 2 3 Ju n 20 03 Extinction by grey dust in the intergalactic medium
نویسنده
چکیده
Condensation in the outer regions of decaying supernovae is an efficient source of dust with grain size up to more than 1µm. The largest grains leave the parent galaxy, thus forming " grey " intergalactic dust, which can explain the observed dimming of light from distant supernovae without invoking cosmic acceleration.
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