Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Exploring compact binary merger host galaxies and environments with
  $\rm{zELDA}$   Compact binaries such as double neutron stars or a neutron star paired with a
black-hole, are strong sources of gravitational waves during coalescence and
also the likely progenitors of various electromagnetic phenomena, notably
short-duration gamma-ray bursts (SGRBs), and kilonovae. In this work, we
generate populations of synthetic binaries and place them in galaxies from the
large-scale hydrodynamical galaxy evolution simulation $\rm{EAGLE}$. With our
$\rm{zELDA}$ code, binaries are seeded in proportion to star formation rate,
and we follow their evolution to merger using both the $\rm{BPASS}$ and
$\rm{COSMIC}$ binary stellar evolution codes. We track their dynamical
evolution within their host galaxy potential, to estimate the galactocentric
distance at the time of the merger. Finally, we apply observational selection
criteria to allow comparison of this model population with the legacy sample of
SGRBs. We find a reasonable agreement with the redshift distribution (peaking
at $0.5<z<1$), host morphologies and projected galactocentric offsets (modal
impact parameter $\sim10$ kpc). Depending on the binary simulation used, we
predict $16-40\%$ of SGRB events would appear "host-less", i.e. sources that
merge with high impact parameters or have hosts fainter than the detection
limit ($H>26$).

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The categories of this paper are: cmp-lg
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The categories of this paper are: q-alg
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The categories of this paper are: plasm-ph
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The categories of this paper are: q-fin
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The categories of this paper are: econ
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The categories of this paper are: quant-ph
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The categories of this paper are: supr-con
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The categories of this paper are: patt-sol
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The categories of this paper are: cs
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The categories of this paper are: comp-gas
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The categories of this paper are: hep-th
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-lat
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The categories of this paper are: math-ph
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The categories of this paper are: atom-ph
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The categories of this paper are: stat