English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/140016
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Hubble frontier field free-form mass mapping of the massive multiple-merging cluster MACSJ0717.5+3745

AutorDiego, José María ; Broadhurst, T.; Zitrin, Adi; Lam, Daniel; Lim, Jeremy; Ford, Holland C.; Zheng, Wei
Palabras claveDark matter
Galaxies: clusters: general
Fecha de publicación2015
EditorOxford University Press
CitaciónMonthly Notices of the Royal Astronomical Society 451(4): 3920-3932 (2015)
ResumenWe examine the latest data on the clusterMACSJ0717.5+3745 from the Hubble Frontier Fields campaign. The critically lensed area is the largest known of any lens and very irregular making it a challenge for parametric modelling. Using our free-form method we obtain an accurate solution, identify here many new sets of multiple images, doubling the number of constraints and improving the reconstruction of the dark matter distribution. Our reconstructed mass map shows several distinct central substructures with shallow density profiles, clarifying earlier work and defining well the relation between the dark matter distribution and the luminous and X-ray peaks within the critically lensed region. Using our free-form method, we are able to meaningfully subtract the mass contribution from cluster members to the deflection field to trace the smoothly distributed cluster dark matter distribution. We find four distinct concentrations, three of which are coincident with the luminous matter. The fourth peak has a significant offset from both the closest luminous and X-ray peaks. These findings, together with dynamical data from the motions of galaxies and gas will be important for uncovering the potentially important implications of this extremely massive and intriguing system.
Versión del editorhttps://doi.org/10.1093/mnras/stv1168
URIhttp://hdl.handle.net/10261/140016
DOI10.1093/mnras/stv1168
Identificadoresdoi: 10.1093/mnras/stv1168
e-issn: 1365-2966
issn: 0035-8711
Aparece en las colecciones: (IFCA) Artículos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
Hubble Frontier.pdf7,28 MBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.