Artículo
Low X-ray luminosity galaxy clusters - III. Weak lensing mass determination at 0.18 < z < 0.70
Gonzalez, Elizabeth Johana
; Foëx, Gael; Nilo Castellon, Jose Luis Emilio
; Dominguez Romero, Mariano Javier de Leon
; Alonso, Maria Victoria
; Garcia Lambas, Diego Rodolfo
; Moreschi, Osvaldo Mario
; Gallo, Emanuel
Fecha de publicación:
10/2015
Editorial:
Wiley Blackwell Publishing, Inc
Revista:
Monthly Notices of the Royal Astronomical Society
ISSN:
0035-8711
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This is the third of a series of papers of low X-ray luminosity galaxy clusters. In this work we present the weak lensing analysis of eight clusters, based on observations obtained with the Gemini Multi-Object Spectrograph in the g', r' and i' passbands. For this purpose, we have developed a pipeline for the lensing analysis of ground-based images and we have performed tests applied to simulated data. We have determined the masses of seven galaxy clusters, five of them measured for the first time. For the four clusters with availably spectroscopic data, we find a general agreement between the velocity dispersions obtained via weak lensing assuming a singular isothermal sphere profile, and those obtained from the redshift distribution of member galaxies. The correlation between our weak lensing mass determinations and the X-ray luminosities is suitably fitted by other observations of the M-LX relation and models.
Palabras clave:
Dark Matter
,
Gravitational Lensing: Weak
,
X-Rays: Galaxies: Clusters
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Articulos(IATE)
Articulos de INST.DE ASTRONOMIA TEORICA Y EXPERIMENTAL
Articulos de INST.DE ASTRONOMIA TEORICA Y EXPERIMENTAL
Citación
Gonzalez, Elizabeth Johana; Foëx, Gael; Nilo Castellon, Jose Luis Emilio; Dominguez Romero, Mariano Javier de Leon; Alonso, Maria Victoria; et al.; Low X-ray luminosity galaxy clusters - III. Weak lensing mass determination at 0.18 < z < 0.70; Wiley Blackwell Publishing, Inc; Monthly Notices of the Royal Astronomical Society; 452; 3; 10-2015; 2225-2235
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