Enhanced dust emission in the HL Tau disc: a low-mass companion in formation?
نویسندگان
چکیده
منابع مشابه
Enhanced Dust Emission in the HL Tau Disc: A Low-Mass Companion in Formation?
We have imaged the disc of the young star HL Tau using the VLA at 1.3 cm, with 0.08 resolution (as small as the orbit of Jupiter). The disc is around half the stellar mass, assuming a canonical gas-mass conversion from the measured mass in large dust grains. A simulation shows that such discs are gravitationally unstable, and can fragment at radii of a few tens of AU to form planets. The VLA im...
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ژورنال
عنوان ژورنال: Monthly Notices of the Royal Astronomical Society: Letters
سال: 2008
ISSN: 1745-3925,1745-3933
DOI: 10.1111/j.1745-3933.2008.00559.x