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Institut de recherche en astrophysique et planétologie |  |
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Institut de recherche en astrophysique et planétologie | |
| HAL: hal-00660244, version 1 |
| ADS Bibliographic id: 2011RMxAC..40..104V |
| Detailed view |  Export this paper |
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| Latin American Regional IAU Meeting, Mexique (2011) |
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| Strong lensing, weak lensing, and dynamics in SL2S J02140-0535 |
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| T. Verdugo 1V. Motta 1 |
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| (2011-10) |
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| We combine strong lensing modeling and dynamical constraints in order to probe the mass of SL2S J02140-0535, a galaxy group at z = 0.44 from the Strong Lensing Legacy Survey (SL2S) which has uncovered a new population of group-scale strong lenses. The strong lensing analysis is based on multi-band HST/ACS observations which display strong lensing features that we have followed up spectroscopically with VLT/FORS2. To constrain the scale radius of an NFW mass profile, we propose a new method taking advantage of the large scale dynamical information provided by VLT/FORS2 and KECK/LRIS spectroscopy of group members. This work shows a potentially useful method for constraining large-scale properties inaccessible to strong lensing, such as the scale radius of the NFW profile. |
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| 1: | Departamento de Física y Astronomía |
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Universidad de Valparaíso |
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| 2: | Laboratoire d'Astrophysique de Marseille (LAM) |
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CNRS : UMR6110 – INSU – Université de Provence - Aix-Marseille I |
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| 3: | Laboratoire Astrophysique de Toulouse-Tarbes (LATT) |
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CNRS : UMR5572 – INSU – Observatoire Midi-Pyrénées – Université Paul Sabatier [UPS] - Toulouse III |
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| 4: | Centre de Recherche Astrophysique de Lyon (CRAL) |
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CNRS : UMR5574 – INSU – Université Claude Bernard - Lyon I – École Normale Supérieure - Lyon |
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| Subject | : | Sciences of the Universe/Astrophysics/Cosmology and Extra-Galactic Astrophysics Physics/Astrophysics/Cosmology and Extra-Galactic Astrophysics |
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| gravitational lensing: strong – galaxies: clusters: individual (SL2S J02140-0535) |
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| Attached file list to this document: | |||||
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| hal-00660244, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00660244 | |
| oai:hal.archives-ouvertes.fr:hal-00660244 | |
| From: Johan Richard | |
| Submitted on: Monday, 16 January 2012 11:38:40 | |
| Updated on: Wednesday, 18 January 2012 16:35:10 | |
