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Light-cone Simulations: Evolution of dark matter haloes

P. Hein"am"aki·I. Suhhonenko·E. Saar·Maret Einasto·Jaan Einasto·Heidi Virtanen
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Abstract

We present a new fast method for simulating pencil-beam type light-cones, using the MLAPM-code (Multi Level Adaptive Particle Mesh) with light-cone additions. We show that by a careful choice of the light-cone orientation, it is possible to avoid extra periodicities in the light-cone. As an example, we apply the method to simulate a 6 Gpc deep light-cone, create the dark matter halo catalogue for the light-cone and study the evolution of haloes from $z=6$ up to the present time. We determine the spatial density of the haloes, their large-scale correlation function, and study the evolution of the mass function. We find a surprisingly simple relation for the dependence of halo maximum mass on redshift, and apply it to derive redshift limits for bright quasars.

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P. Hein"am"aki, I. Suhhonenko, E. Saar, Maret Einasto, Jaan Einasto, Heidi Virtanen. 2005-07-08. Light-cone Simulations: Evolution of dark matter haloes. https://arxiv.org/abs/astro-ph/0507197

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