zobov: a parameter-free void-finding algorithm
zobov (ZOnes Bordering On Voidness) is an algorithm that finds density depressions in a set of points, without any free parameters, or assumptions about shape. It uses the Voronoi tessellation to estimate densities, which it uses to find both voids and subvoids. It also measures probabilities that e...
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| Veröffentlicht in: | Monthly notices of the Royal Astronomical Society 2008-06, Vol.386 (4), p.2101-2109 |
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| container_title | Monthly notices of the Royal Astronomical Society |
| container_volume | 386 |
| creator | Neyrinck, Mark C. |
| description | zobov (ZOnes Bordering On Voidness) is an algorithm that finds density depressions in a set of points, without any free parameters, or assumptions about shape. It uses the Voronoi tessellation to estimate densities, which it uses to find both voids and subvoids. It also measures probabilities that each void or subvoid arises from Poisson fluctuations. This paper describes the zobov algorithm, and the results from its application to the dark matter particles in a region of the Millennium simulation. Additionally, the paper points out an interesting high-density peak in the probability distribution of dark matter particle densities. |
| doi_str_mv | 10.1111/j.1365-2966.2008.13180.x |
| format | Article |
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| ispartof | Monthly notices of the Royal Astronomical Society, 2008-06, Vol.386 (4), p.2101-2109 |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete; Oxford Journals Open Access Collection |
| subjects | Algorithms Astronomy Astrophysics cosmology: theory Dark matter Earth, ocean, space Exact sciences and technology large-scale structure of Universe methods: data analysis Poisson distribution Simulation |
| title | zobov: a parameter-free void-finding algorithm |
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