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Home All issues Volume 501 / No 2 (July II 2009) A&A, 501 2 (2009) 475-484 Full HTML
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Table 1:

Summary of the most relevant observational quantities for SL2SJ02176-0513.
Lens galaxy centre (J2000) RA 02:17:37.136
  Dec -05:13:29.41

Lens galaxy redshift

 $z_{\rm lens}$ $0.6459 \pm 0.0003$
Lens mags ( $R<1\hbox{$^{\prime\prime}$ }$) u* $23.90 \pm 0.20$
  g' $22.89 \pm 0.07$
  r' $21.74 \pm 0.05$
  i' $20.44 \pm 0.04$
  z' $20.12 \pm 0.03$
HST (Sérsic model mags) F606W $ 20.90 \pm 0.05$
  F814W $ 19.71 \pm 0.01$
Effective radius ( F814W) $R_{\rm e}$ $ 0\hbox{$.\!\!^{\prime\prime}$ }90 \pm 0\hbox{$.\!\!^{\prime\prime}$ }10 $
    $ 6.20 \pm 0.7 ~h_{70}^{-1}~ {\rm kpc}$
Sérsic model index ( F814W) n 5.20
Rest frame V band luminosity LV $1.36^{+0.08}_{-0.08} \times 10^{11} ~h_{70}^{-2}~ {L}_{\odot}$
light position angle ( F814W) PA* $ 78\pm 6$ deg
light ellipticity ( F814W) $\epsilon_*$ $ 0.14\pm 0.06 $
``Photometric'' stellar mass M* $ 2.1-4.1 \times 10^{11}{M}_{\odot}$
Tangential arc    
$\ldots$ redshift $z_{\rm arc}$ $1.8470 \pm 0.0003$
$\ldots$ ${\it F606W}_{\rm {arc}}$ $22.04 \pm 0.16 $
$\ldots$ ${\it F814W}_{\rm {arc}}$ $22.19 \pm 0.13 $
Double system (R1)    
$\ldots$ photom. redshift $z_{\rm dbl}$ $\rm 2.90^{+0.18}_{-0.24}$
$\ldots$ ${\it F606W}_{\rm R1}$ $24.11 \pm 0.06 $
$\ldots$ ${\it F814W}_{\rm R1}$ $23.91 \pm 0.06 $
Einstein radius of the main arc $R_{\rm arc}~~(\hbox{$^{\prime\prime}$ })$ 1.4
Group redshifta $z_{\rm grp} $ $0.648\pm0.001$
Group velocity dispersiona $\sigma_{\rm grp}^{\rm spec} $ $770 \pm 170 ~ {\rm km~ s}^{-1}$
X-ray temperaturea kT $\rm 2.0^{+1.0}_{-0.6}$ keV
$\sigma$ from $\sigma-T_{\rm X}$ relationa $\sigma_{\rm grp}^{\rm X}$ $520 \pm 120 ~ {\rm km~ s}^{-1}$

Source LaTeX | All tables | In the text

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