Astro & cosmo-chemical consequences of accretion bursts I: the D/H ratio of water
James E. Owen, Emmanuel Jacquet
(Submitted on 24 Oct 2014), accepted for publication in MNRAS
We ﬁnd that the accretion bursts result in a signiﬁcantly lower (D/H) water ratio and a more extended region (radius up to ∼ 1 − 3 AU) where water is equilibrated with hydrogen gas (D/H=2 × 10−5 ), when compared to burst-free
models. Solar system constraints suggest that our solar nebula either experienced no accretion bursts and had a Schmidt number . 0.2 or had a Schmidt number closer to “nominal” values (∼ 1) and experienced several accretion bursts.