A close view on the protoplanetary disk in the Bok globule CB26

Details A close view on the protoplanetary disk in the Bok globule CB26 A close view on the protoplanetary disk in the Bok globule CB26

2001-06-28

arxiv.org/abs/astro-ph/0106517v1

Astronomy and Astrophysics

Astrophysics

Conference proceeding "Origins of stars and planets: The VLT view", ESO, Garching, April 24-27 2001

Scientific paper

10.1007/10856518_41

We present new sub-arcsecond-resolution near-infrared polarimetric imaging and millimetre interferometry data on the circumstellar disk system in the Bok globule CB26. The data imply the presence of a M > 0.01 M_sun edge-on disk of >400 AU in diameter, being in Keplerian rotation around a young ~0.35 M_sun star. The mm dust emission from the inner 200 AU is highly optically thick, but the outer parts are optically thin and made of small dust grains. Planetesimal growth in the inner disk could neither be comfirmed nor excluded. The outer optically thin part of the disk is strongly warped. We argue that the CB 26 disk is a very young protoplanetary disk and show that it is comparable to the early solar system.

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