Show simple item record Carrasco, R. Gomez, P. Verdugo, T. Lee, H. Diaz, Ruben Joaquin Bergmann, M. Turner, J. Miller, B. West, M. 2017-02-14T20:04:26Z 2010-06
dc.identifier.citation Carrasco, R.; Gomez, P.; Verdugo, T.; Lee, H.; Diaz, Ruben Joaquin; et al.; Strong Gravitational Lensing by the Super-massive cD Galaxy in Abell 3827; Iop Publishing; Astrophysical Journal; 715; 2; 6-2010; 160-164
dc.identifier.issn 0004-637X
dc.description.abstract We have discovered strong gravitational lensing features in the core of the nearby cluster Abell 3827 by analyzing Gemini South GMOS images. The most prominent strong lensing feature is a highly magnified, ring-shaped configuration of four images around the central cD galaxy. GMOS spectroscopic analysis puts this source at z ~ 0.2. Located ~20´´ away from the central galaxy is a secondary tangential arc feature which has been identified as a background galaxy with z ~ 0.4. We have modeled the gravitational potential of the cluster core, taking into account the mass from the cluster, the brightest cluster galaxy (BCG), and other galaxies. We derive a total mass of (2.7 ± 0.4) × 1013 M sun within 37 h -1 kpc. This mass is an order of magnitude larger than that derived from X-ray observations. The total mass derived from lensing data suggests that the BCG in this cluster is perhaps the most massive galaxy in the nearby universe.
dc.format application/pdf
dc.language.iso eng
dc.publisher Iop Publishing
dc.rights info:eu-repo/semantics/restrictedAccess
dc.subject galaxies: evolution, formation
dc.subject galaxies: elliptical and lenticular, cD
dc.subject galaxies: clusters
dc.subject gravitational lensing: strong
dc.subject.classification Astronomía
dc.subject.classification Ciencias Físicas
dc.subject.classification CIENCIAS NATURALES Y EXACTAS
dc.title Strong Gravitational Lensing by the Super-massive cD Galaxy in Abell 3827
dc.type info:eu-repo/semantics/article
dc.type info:ar-repo/semantics/artículo
dc.type info:eu-repo/semantics/publishedVersion 2017-02-13T20:30:17Z
dc.journal.volume 715
dc.journal.number 2
dc.journal.pagination 160-164
dc.journal.pais Reino Unido
dc.journal.ciudad Philadelphia
dc.description.fil Fil: Carrasco, R.. Gemini Observatory; Chile
dc.description.fil Fil: Gomez, P.. Gemini Observatory; Chile
dc.description.fil Fil: Verdugo, T.. Universidad de Valpara´ıso; Chile
dc.description.fil Fil: Lee, H.. Gemini Observatory; Chile
dc.description.fil Fil: Diaz, Ruben Joaquin. Gemini Observatory; Chile. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Centro Cientifico Tecnologico San Juan. Instituto de Ciencias Astronomicas de la Tierra y del Espacio; Argentina
dc.description.fil Fil: Bergmann, M. . Gemini Observatory; Chile
dc.description.fil Fil: Turner, J.. Gemini Observatory; Chile
dc.description.fil Fil: Miller, B.. Gemini Observatory; Chile
dc.description.fil Fil: West, M.. Gemini Observatory; Chile
dc.journal.title Astrophysical Journal
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/url/
dc.relation.alternativeid info:eu-repo/semantics/altIdentifier/doi/

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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)