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What are we doing in Chile?

What are we doing in Chile?. Tomás Verdugo Verónica Motta and the SL2S collaboration . Objects with FORS data in the SL2S . SL2SJ094135-11005 M001,010b SL2SJ221332+004836 M008 SL2SJ085446-012137 M005 x 2

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What are we doing in Chile?

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  1. What are we doing in Chile? Tomás Verdugo Verónica Motta and the SL2S collaboration

  2. Objects with FORS data in the SL2S SL2SJ094135-11005 M001,010b SL2SJ221332+004836 M008 SL2SJ085446-012137 M005 x 2 SL2SJ085914-034514 M002 SL2SJ021408-053532 M012,010a SL2SJ022151-064725 M016 x 2 SL2SJ021411-040502 M014a SL2SJ021807-051536 M014b x 2 8 Masks

  3. SL2SJ02215-0647 z=0.618 σ < 372 km s-1 Two systems: -Radial -Tangential Spectra ????? B A

  4. SL2SJ02140-0532 A zspec = 0.44 σWL = 543 km s-1 Two systems or one system? zphot = 1.0 Arc A Coupon et al. 2008 Our measures zspec (Arcs)= ? B C C

  5. One vs. Two • Alard (2009) • Perturbative reconstruction • One single source • Different colors are consistent with the model • Mass don’t follow light !!! • Limousin et al. (2009) • θ = 111 degrees, in the same direction as the luminosity contours BUT ... OII z = 1.023 Lyαz = 5.2

  6. Some models Model I Clump + 3 Galaxies Arcs A, B and C σ = 794 km s-1 ε = 0.3 θ = 111° χ2 = 0.5 Model II 2Clumps + 3 Galaxies For the second clump: ε ≈ 0.9 ! θ = 40° χ2 = 34 Solution?… more DATA

  7. Spectra 56 Reduced Spectra 13 with measured z

  8. About dynamics Carlberg et al. 2001 Wilman et al. 2005  We need more objects Stack all groups

  9. On going… • Models J02140 and J02215 -Proposal to observe J02140 -Spectra for the arcs on J02215 • Dynamics -We star with J02140 -All the Groups - Morphology, σ, internal velocity dispersion - Luminosity of the members -Members in the field • Ideas are Welcome

  10. Something's Going On

  11. Some models Model I Clump + 3 Galaxies Arcs A and B σ = 794 km s-1 ε = 0.3 θ = 111° χ2 = 0.5 Model II Clump + 3 Galaxies Arcs A,B and C σ = 798 km s-1 ε = 0.1 θ = 107° χ2 > 200 Solution?… more DATA

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