The extremely truncated circumstellar disc of V410 X-ray 1: A precursor to TRAPPIST-1?
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Abstract
Protoplanetary discs around brown dwarfs and very low mass stars offer some
of the best prospects for forming Earth-sized planets in their habitable zones.
To this end, we study the nature of the disc around the very low mass star V410
X-ray 1, whose SED is indicative of an optically thick and very truncated dust
disc, with our modelling suggesting an outer radius of only 0.6 au. We
investigate two scenarios that could lead to such a truncation, and find that
the observed SED is compatible with both. The first scenario involves the
truncation of both the dust and gas in the disc, perhaps due to a previous
dynamical interaction or the presence of an undetected companion. The second
scenario involves the fact that a radial location of 0.6 au is close to the
expected location of the H
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1365-2966
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Science and Technology Facilities Council (ST/N000927/1)