Anisotropic halo model

In the present work, we extend the classic halo model for the large-scale matter distribution including a triaxial model for the halo profiles and their alignments. In particular, we derive general expressions for the halo-matter cross correlation function. In addition, by numerical integration, we...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sgró, Mario A., Paz, Dante, Merchán, Manuel
Formato:	article
Lenguaje:	Inglés
Publicado:	2014
Materias:	Grupos de galaxias Materia oscura Estructura en gran escala Galaxies: groups: general Dark matter Large-scale structure of universe
Acceso en línea:	http://dx.doi.org/10.1093/mnras/stt773 http://hdl.handle.net/11086/1656
Aporte de:	Repositorio Digital Universitario (UNC) de Universidad Nacional de Córdoba

id	I10-R14111086-1656
record_format	dspace
institution	Universidad Nacional de Córdoba
institution_str	I-10
repository_str	R-141
collection	Repositorio Digital Universitario (UNC)
language	Inglés
topic	Grupos de galaxias Materia oscura Estructura en gran escala Galaxies: groups: general Dark matter Large-scale structure of universe
spellingShingle	Grupos de galaxias Materia oscura Estructura en gran escala Galaxies: groups: general Dark matter Large-scale structure of universe Sgró, Mario A. Paz, Dante Merchán, Manuel Anisotropic halo model
topic_facet	Grupos de galaxias Materia oscura Estructura en gran escala Galaxies: groups: general Dark matter Large-scale structure of universe
description	In the present work, we extend the classic halo model for the large-scale matter distribution including a triaxial model for the halo profiles and their alignments. In particular, we derive general expressions for the halo-matter cross correlation function. In addition, by numerical integration, we obtain instances of the cross-correlation function depending on the directions given by halo shape axes. These functions are called anisotropic cross-correlations. With the aim of comparing our theoretical results with the simulations, we compute averaged anisotropic correlations in cones with their symmetry axis along each shape direction of the centre halo. From these comparisons we characterise and quantify the alignment of dark matter haloes on the ΛCDM context by means of the presented anisotropic halo model. As our model requires multidimensional integral computation we implement a Monte Carlo method on GPU hardware which allows us to increase the precision of the results whereas it improves the performance of the computation.
format	article
author	Sgró, Mario A. Paz, Dante Merchán, Manuel
author_facet	Sgró, Mario A. Paz, Dante Merchán, Manuel
author_sort	Sgró, Mario A.
title	Anisotropic halo model
title_short	Anisotropic halo model
title_full	Anisotropic halo model
title_fullStr	Anisotropic halo model
title_full_unstemmed	Anisotropic halo model
title_sort	anisotropic halo model
publishDate	2014
url	http://dx.doi.org/10.1093/mnras/stt773 http://hdl.handle.net/11086/1656
work_keys_str_mv	AT sgromarioa anisotropichalomodel AT pazdante anisotropichalomodel AT merchanmanuel anisotropichalomodel
bdutipo_str	Repositorios
_version_	1764820393340698625

Anisotropic halo model

Ejemplares similares