Reflected Light from Sand Grains in the Terrestrial Zone of a Protoplanetary Disk

Details Reflected Light from Sand Grains in the Terrestrial Zone of a Protoplanetary Disk Reflected Light from Sand Grains in the Terrestrial Zone of a Protoplanetary Disk

2008-03-12

arxiv.org/abs/0803.1782v1

Astronomy and Astrophysics

Astrophysics

22 pages, 5 figures. To be published in Nature, March 13, 2008. Contains a Supplement

Scientific paper

10.1038/nature06671

We show that grains have grown to ~mm size (sand sized) or larger in the
terrestrial zone (within ~3 AU) of the protoplanetary disk surrounding the 3
Myr old binary star KH 15D. We also argue that the reflected light in the
system reaches us by back scattering off the far side of the same ring whose
near side causes the obscuration.

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