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dc.contributor.author
Carrasco, R.
dc.contributor.author
Gomez, P.
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Verdugo, T.
dc.contributor.author
Lee, H.
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Diaz, Ruben Joaquin
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Bergmann, M.
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Turner, J.
dc.contributor.author
Miller, B.
dc.contributor.author
West, M.
dc.date.available
2017-02-14T20:04:26Z
dc.date.issued
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.identifier.uri
http://hdl.handle.net/11336/12996
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.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Galaxies: Evolution, Formation
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Galaxies: Elliptical And Lenticular, Cd
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Galaxies: Clusters
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Gravitational Lensing: Strong
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Astronomía
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Ciencias Físicas
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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
dc.date.updated
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
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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
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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/http://iopscience.iop.org/article/10.1088/2041-8205/715/2/L160/meta
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/https://doi.org/10.1088/2041-8205/715/2/L160


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