Simha, Vimal and Cole, Shaun (2017) 'Modelling galaxy merger time-scales and tidal destruction.', Monthly notices of the Royal Astronomical Society., 472 (2). pp. 1392-1400.
We present a model for the dynamical evolution of subhaloes based on an approach combining numerical and analytical methods. Our method is based on tracking subhaloes in an N-body simulation up to the latest epoch that it can be resolved, and applying an analytic prescription for its merger time-scale that takes dynamical friction and tidal disruption into account. When applied to cosmological N-body simulations with mass resolutions that differ by two orders of magnitude, the technique produces halo occupation distributions that agree to within 3 per cent. This model has now been implemented in the GALFORM semi-analytic model of galaxy formation.
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|Publisher Web site:||https://doi.org/10.1093/mnras/stx1942|
|Publisher statement:||This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.|
|Date accepted:||27 July 2017|
|Date deposited:||01 November 2017|
|Date of first online publication:||02 August 2017|
|Date first made open access:||01 November 2017|
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