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@string{aasm = {American Astronomical Society Meeting}}

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@string{an = {Astron. Nach.}}

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@article{Ben16,
	Abstract = {A common approach in semi-analytic modeling of galaxy formation is to construct Monte Carlo realizations of merger histories of dark matter halos whose masses are sampled from a halo mass function. Both the mass function itself, and the merger rates used to construct merging histories are calibrated to N-body simulations. Typically, "backsplash" halos (those which were once subhalos within a larger halo, but which have since moved outside of the halo) are counted in both the halo mass function, and in the merger rates (or, equivalently, progenitor mass functions). This leads to a double-counting of mass in Monte Carlo merger histories which will bias results relative to N-body results. We measure halo mass functions and merger rates with this double-counting removed in a large, cosmological N-body simulation with cosmological parameters consistent with current constraints. Furthermore, we account for the inherently noisy nature of N-body halo mass estimates when fitting functions to N-body data, and show that ignoring these errors leads to a significant systematic bias given the precision statistics available from state-of-the-art N-body cosmological simulations.},
	Author = {Andrew J. Benson},
	Date-Added = {2016-10-05 07:11:46 +0000},
	Date-Modified = {2016-10-05 07:11:46 +0000},
	Eprint = {1610.01057},
	Keywords = {Methods, Merger trees},
	Month = {10},
	Title = {The Mass Function of Unprocessed Dark Matter Halos and Merger Tree Branching Rates},
	Url = {https://arxiv.org/abs/1610.01057},
	Year = {2016},
	Bdsk-Url-1 = {https://arxiv.org/abs/1610.01057},
	Bdsk-File-1 = { }}

@article{WPK16,
	Abstract = {Merger trees are routinely used to follow the growth and merging history of dark matter haloes and subhaloes in simulations of cosmic structure formation. Srisawat et al. (2013) compared a wide range of merger-tree-building codes. Here we test the influence of output strategies and mass resolution on tree-building. We find that, somewhat surprisingly, building the tree from more snapshots does not generally produce more complete trees; instead, it tends to short- en them. Significant improvements are seen for patching schemes which attempt to bridge over occasional dropouts in the underlying halo catalogues or schemes which combine the halo-finding and tree-building steps seamlessly. The adopted output strategy does not affec- t the average number of branches (bushiness) of the resultant merger trees. However, mass resolution has an influence on both main branch length and the bushiness. As the resolution increases, a halo with the same mass can be traced back further in time and will encounter more small progenitors during its evolutionary history. Given these results, we recommend that, for simulations intended as precursors for galaxy formation models where of order 100 or more snapshots are analysed, the tree-building routine should be integrated with the halo finder, or at the very least be able to patch over multiple adjacent snapshots.},
	Author = {Yang Wang and Frazer R. Pearce and Alexander Knebe and Aurel Schneider and Chaichalit Srisawat and Dylan Tweed and Intae Jung and Jiaxin Han and John Helly and Julian Onions and Pascal J. Elahi and Peter A. Thomas and Peter Behroozi and Sukyoung K. Yi and Vicente Rodriguez-Gomez and Yao-Yuan Mao and Yipeng Jing and Weipeng Lin},
	Date-Added = {2016-04-07 07:33:19 +0000},
	Date-Modified = {2016-04-07 07:33:19 +0000},
	Eprint = {1604.01463},
	Keywords = {My Papers, Merger trees},
	Month = {04},
	Title = {Sussing Merger Trees: Stability and Convergence},
	Url = {http://arxiv.org/abs/1604.01463},
	Year = {2016},
	Bdsk-File-1 = { },
	Bdsk-Url-1 = {http://arxiv.org/abs/1604.01463}}

@article{BKP15,
	Abstract = {Merging haloes with similar masses (i.e., major mergers) pose significant challenges for halo finders. We compare five halo finding algorithms' (AHF, HBT, Rockstar, SubFind, and VELOCIraptor) recovery of halo properties for both isolated and cosmological major mergers. We find that halo positions and velocities are often robust, but mass biases exist for every technique. The algorithms also show strong disagreement in the prevalence and duration of major mergers, especially at high redshifts (z>1). This raises significant uncertainties for theoretical models that require major mergers for, e.g., galaxy morphology changes, size changes, or black hole growth, as well as for finding Bullet Cluster analogues. All finders not using temporal information also show host halo and subhalo relationship swaps over successive timesteps, requiring careful merger tree construction to avoid problematic mass accretion histories. We suggest that future algorithms should combine phase-space and temporal information to avoid the issues presented.},
	Author = {Peter Behroozi and Alexander Knebe and Frazer R. Pearce and Pascal Elahi and Jiaxin Han and Hanni Lux and Yao-Yuan Mao and Stuart I. Muldrew and Doug Potter and Chaichalit Srisawat},
	Date-Added = {2015-06-05 07:47:03 +0000},
	Date-Modified = {2015-06-05 07:47:03 +0000},
	Eprint = {1506.01405},
	Keywords = {Methods, Halo finders},
	Month = {06},
	Title = {Major Mergers Going Notts: Challenges for Modern Halo Finders},
	Url = {http://arxiv.org/abs/1506.01405},
	Year = {2015},
	Bdsk-File-1 = { },
	Bdsk-Url-1 = {http://arxiv.org/abs/1506.01405}}

@article{BWW13,
	Author = {{Behroozi}, P.~S. and {Wechsler}, R.~H. and {Wu}, H.-Y. and {Busha}, M.~T. and {Klypin}, A.~A. and {Primack}, J.~R.},
	Doi = {10.1088/0004-637X/763/1/18},
	Journal = ApJ,
	Pages = {18},
	Title = {{Gravitationally Consistent Halo Catalogs and Merger Trees for Precision Cosmology}},
	Volume = 763,
	Year = 2013,
	Bdsk-Url-1 = {http://dx.doi.org/10.1088/0004-637X/763/1/18}}

@article{HDN03,
	Author = {{Hatton}, S. and {Devriendt}, J.~E.~G. and {Ninin}, S. and {Bouchet}, F.~R. and {Guiderdoni}, B. and {Vibert}, D.},
	Doi = {10.1046/j.1365-8711.2003.05589.x},
	Journal = MNRAS,
	Pages = {75-106},
	Title = {{GALICS- I. A hybrid N-body/semi-analytic model of hierarchical galaxy formation}},
	Volume = 343,
	Year = 2003,
	Bdsk-Url-1 = {http://dx.doi.org/10.1046/j.1365-8711.2003.05589.x}}

@article{HJW12,
	Author = {{Han}, J. and {Jing}, Y.~P. and {Wang}, H. and {Wang}, W.},
	Doi = {10.1111/j.1365-2966.2012.22111.x},
	Journal = MNRAS,
	Pages = {2437-2449},
	Title = {{Resolving subhaloes' lives with the Hierarchical Bound-Tracing algorithm}},
	Volume = 427,
	Year = 2012,
	Bdsk-Url-1 = {http://dx.doi.org/10.1111/j.1365-2966.2012.22111.x}}

@article{JHC14,
	Author = {{Jiang}, L. and {Helly}, J.~C. and {Cole}, S. and {Frenk}, C.~S.},
	Doi = {10.1093/mnras/stu390},
	Journal = {MNRAS},
	Pages = {2115-2135},
	Title = {{N-body dark matter haloes with simple hierarchical histories}},
	Volume = 440,
	Year = 2014,
	Bdsk-Url-1 = {http://dx.doi.org/10.1093/mnras/stu390}}

@article{KLK10,
	Author = {{Klimentowski}, J. and {{\L}okas}, E.~L. and {Knebe}, A. and {Gottl{\"o}ber}, S. and {Martinez-Vaquero}, L.~A. and {Yepes}, G. and {Hoffman}, Y.},
	Doi = {10.1111/j.1365-2966.2009.16024.x},
	Journal = MNRAS,
	Pages = {1899-1910},
	Title = {{The grouping, merging and survival of subhaloes in the simulated Local Group}},
	Volume = 402,
	Year = 2010,
	Bdsk-Url-1 = {http://dx.doi.org/10.1111/j.1365-2966.2009.16024.x}}

@article{KLK10a,
	Abstract = {We use two simulations performed within the Constrained Local UniversE Simulation (CLUES) project to study both the shape and radial alignment of (the dark matter component of) subhaloes; one of the simulations is a dark matter only model while the other run includes all the relevant gas physics and star formation recipes. We find that the involvement of gas physics does not have a statistically significant effect on either property - at least not for the most massive subhaloes considered in this study. However, we observe in both simulations including and excluding gas dynamics a (pronounced) evolution of the dark matter shapes of subhaloes as well as of the radial alignment signal since infall time. Further, this evolution is different when positioned in the central and outer regions of the host halo today; while subhaloes tend to become more aspherical in the central 50 per cent of their host's virial radius, the radial alignment weakens in the central regime while strengthening in the outer parts. We confirm that this is due to tidal torquing and the fact that subhaloes at pericentre move too fast for the alignment signal to respond.},
	Adsnote = {Provided by the SAO/NASA Astrophysics Data System},
	Adsurl = {http://adsabs.harvard.edu/abs/2010MNRAS.405.1119K},
	Archiveprefix = {arXiv},
	Author = {{Knebe}, A. and {Libeskind}, N.~I. and {Knollmann}, S.~R. and {Yepes}, G. and {Gottl{\"o}ber}, S. and {Hoffman}, Y.},
	Date-Added = {2015-06-10 07:57:59 +0000},
	Date-Modified = {2015-06-10 07:58:30 +0000},
	Doi = {10.1111/j.1365-2966.2010.16514.x},
	Eprint = {1002.2853},
	Journal = {MNRAS},
	Keywords = {Methods, Merger trees, AHF},
	Month = jun,
	Pages = {1119-1128},
	Title = {{The impact of baryonic physics on the shape and radial alignment of substructures in cosmological dark matter haloes}},
	Volume = 405,
	Year = 2010,
	Bdsk-Url-1 = {http://dx.doi.org/10.1111/j.1365-2966.2010.16514.x}}

@article{RGV15,
	Author = {Vicente Rodriguez-Gomez and Shy Genel and Mark Vogelsberger and Debora Sijacki and Annalisa Pillepich and Laura V. Sales and Paul Torrey and Greg Snyder and Dylan Nelson and Volker Springel and Chung-Pei Ma and Lars Hernquist},
	Doi = {10.1093/mnras/stv264},
	Journal = {MNRAS},
	Month = {02},
	Pages = {49-64},
	Title = {The merger rate of galaxies in the Illustris Simulation: a comparison with observations and semi-empirical models},
	Volume = {449},
	Year = {2015},
	Bdsk-Url-1 = {http://dx.doi.org/10.1093/mnras/stv264}}

@article{SMT13a,
	Author = {Chaichalit Srisawat and Alexander Knebe and Frazer R. Pearce and Aurel Schneider and Peter A. Thomas and Peter Behroozi and Klaus Dolag and Pascal J. Elahi and Jiaxin Han and John Helly and Yipeng Jing and Intae Jung and Jaehyun Lee and Yao Yuan Mao and Julian Onions and Vicente Rodriguez-Gomez and Dylan Tweed and Sukyoung K. Yi},
	Journal = {MNRAS},
	Pages = {150},
	Title = {Sussing Merger Trees: The Merger Trees Comparison Project},
	Volume = {436},
	Year = {2013}}

@article{SWJ05,
	Author = {{Springel}, V. and {White}, S.~D.~M. and {Jenkins}, A. and {Frenk}, C.~S. and {Yoshida}, N. and {Gao}, L. and {Navarro}, J. and {Thacker}, R. and {Croton}, D. and {Helly}, J. and {Peacock}, J.~A. and {Cole}, S. and {Thomas}, P. and {Couchman}, H. and {Evrard}, A. and {Colberg}, J. and {Pearce}, F.},
	Doi = {10.1038/nature03597},
	Journal = {Nature},
	Pages = {629-636},
	Title = {{Simulations of the formation, evolution and clustering of galaxies and quasars}},
	Volume = 435,
	Year = 2005,
	Bdsk-Url-1 = {http://dx.doi.org/10.1038/nature03597}}

@article{SWT01,
	Adsnote = {Provided by the Smithsonian/NASA Astrophysics Data System},
	Adsurl = {http://adsabs.harvard.edu/abs/2001MNRAS.328..726S},
	Author = {{Springel}, V. and {White}, S.~D.~M. and {Tormen}, G. and {Kauffmann}, G.},
	Date-Modified = {2008-09-10 14:01:37 +0100},
	Doi = {10.1046/j.1365-8711.2001.04912.x},
	Eprint = {arXiv:astro-ph/0012055},
	Journal = MNRAS,
	Month = dec,
	Pages = {726-750},
	Title = {{Populating a cluster of galaxies - I. Results at [formmu2]z=0}},
	Volume = 328,
	Year = 2001,
	Bdsk-File-1 = { },
	Bdsk-Url-1 = {http://dx.doi.org/10.1046/j.1365-8711.2001.04912.x}}

@article{TDB09,
	Author = {{Tweed}, D. and {Devriendt}, J. and {Blaizot}, J. and {Colombi}, S. and {Slyz}, A.},
	Doi = {10.1051/0004-6361/200911787},
	Journal = {A\&A},
	Pages = {647-660},
	Title = {{Building merger trees from cosmological N-body simulations. Towards improving galaxy formation models using subhaloes}},
	Volume = 506,
	Year = 2009,
	Bdsk-Url-1 = {http://dx.doi.org/10.1051/0004-6361/200911787}}
