Reflected Light from Sand Grains in the Terrestrial Zone of a Protoplanetary Disk
classification
🌌 astro-ph
keywords
diskgrainslightprotoplanetaryreflectedsandsideterrestrial
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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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