Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mass loss in tidally stripped systems; the energy-based truncation
  method   The ability to accurately predict the evolution of tidally stripped haloes is
important for understanding galaxy formation and testing the properties of dark
matter. Most studies of substructure evolution make predictions based on
empirical models of tidal mass loss that are calibrated using numerical
simulations. This approach can be accurate in the cases considered, but lacks
generality and does not provide a physical understanding of the processes
involved. Recently, we demonstrated that truncating NFW distribution functions
sharply in energy results in density profiles that resemble those of tidally
stripped systems, offering a path to constructing physically motivated models
of tidal mass loss. In this work, we review calculations of mass loss based on
energy truncation alone, and then consider what secondary effects may modulate
mass loss beyond this. We find that a combination of dependence on additional
orbital parameters and variations in individual particle energies over an orbit
results in a less abrupt truncation in energy space as a subhalo loses mass.
Combining the energy truncation approach with a simple prediction for the
mass-loss rate, we construct a full model of mass loss that can accurately
predict the evolution of a subhalo in terms of a single parameter $\eta_{\rm
eff}$. This parameter can be fully determined from the initial orbital and halo
properties, and does not require calibration with numerical simulations.

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The categories of this paper are: stat
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The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
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The categories of this paper are: econ
29
The categories of this paper are: funct-an
32
The categories of this paper are: atom-ph
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The categories of this paper are: hep-th
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The categories of this paper are: gr-qc
2
The categories of this paper are: math
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The categories of this paper are: solv-int
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The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph