What are we doing in Chile?
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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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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

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


Sl2sj02215 0647

SL2SJ02215-0647

z=0.618

σ < 372 km s-1

Two systems:

-Radial

-Tangential

Spectra ?????

B

A


Sl2sj02140 0532

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


One vs two

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


Some models

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


Spectra

Spectra

56 Reduced Spectra

13 with measured z


About dynamics

About dynamics

Carlberg et al. 2001

Wilman et al. 2005



We need more objects

Stack all groups


On going

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


What are we doing in chile

Something's Going On


Some models1

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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