Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Water delivery to dry protoplanets by hit-and-run collisions   Final water inventories of newly formed terrestrial planets are shaped by
their collision history. A setting where volatiles are transported from beyond
the snowline to habitable-zone planets suggests collisions of very dry with
water-rich bodies. By means of smooth particle hydrodynamics (SPH) simulations
we study water delivery in scenarios where a dry target is hit by a water-rich
projectile, focusing on hit-and-run encounters with two large surviving bodies,
which probably comprise about half of all similar-sized collisions.

15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
26
The categories of this paper are: bayes-an
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The categories of this paper are: q-fin
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
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The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
3
The categories of this paper are: physics
22
The categories of this paper are: chao-dyn
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The categories of this paper are: cmp-lg
29
The categories of this paper are: funct-an
2
The categories of this paper are: math