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The data and figures on this page are described in K.-H. Chae, The Cosmic Lens All-Sky Survey: statistical strong lensing,
cosmological parameters, and global properties of galaxy populations. You can get a postscript preprint from Astro-ph.
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(Download the following description)
Each data file contains a grid of Delta(chi-squared) values on a 2-D or 3-D
parameter (sub)space. Here chi-squared = -2 ln(Likelihood).
The first column of each file is the array of Delta(chi-squared) values.
Please ignore the other columns if present.
Since a multi-dimensional grid was written into a column using a nested
loop, the data column has to be read using the same nested loop.
I will use letters I, J, and K as indices from the outer to the inner loop.
In other words, J runs within I (and K runs within J).
Each index corresponds to an axis (of a parameter space)
representing an astrophysical quantity.
2-D grids
All the 2-D grid are shown on Figures 6, 7, 8 and 9 of astro-ph/0211244.
At each grid point of each parameter plane, the rest of the free parameters
were varied to minimize the chi-squared.
Figure 6
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I: runs from 0 to 200,
corresponds to Omega_matter of [0, 4]
J: runs from 0 to 200,
corresponds to Omega_Lambda of [-1, 3]
Data for figure 6(a)
Data for figure 6(b)
Data for figure 6(c)
Data for figure 6(d)
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Figure 7
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I: runs from 0 to 100,
corresponds to w(equation of state) of [-1, 0]
J: runs from 0 to 100,
corresponds to Omega_matter of [0, 1]
Data for figure 7(a)
Data for figure 7(b)
Data for figure 7(c)
Data for figure 7(d)
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Figure 8
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I: runs from 0 to 150,
corresponds to sigma_*^(e) of [130, 280] in units of km/s
J: runs from 0 to 120,
corresponds to sigma_*^(s) of [70, 190] in units of km/s
Data for figure 8(1)
Data for figure 8(2)
Data for figure 8(3)
Data for figure 8(4)
Data for figure 8(5)
Data for figure 8(6)
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Figure 9
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I: runs from 0 to 60,
corresponds to ellipticity of [0.05, 0.65]
J: runs from 0 to 150,
corresponds to sigma_*^(e) of [130, 280]
Data for figure 9(1)
Data for figure 9(2)
Data for figure 9(3)
Data for figure 9(4)
Data for figure 9(5)
Data for figure 9(6)
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3-D grids
The axes of the 3-D space are Omega_matter, Omega_Lambda, & sigma_*^(e).
The other two free parameters [i.e. ellipticity & sigma_*^(s)] are held
fixed at their global maximum likelihood estimates. The files are gzipped to
reduce their size.
Each 3-D grid can be regarded as the sigma_*^(e) axis added to the
Omega_matter-Omega_Lambda plane. Thus, CLASS_3Dgrid_x.dat corresponds to
the extension of OmLam_CLASS_profgrid_x.dat (where x=a, b, c, d) shown on
Fig. 6.
I: runs from 0 to 200
corresponds to Omega_matter of [0, 4]
J: runs from 0 to 200,
corresponds to Omega_Lambda of [-1, 3]
K: runs from 0 to 200,
corresponds to sigma_*^(e) of [100, 300]
Get all 3-D grids, compressed
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