Table 3
Results of the combined fit weak+strong lensing, with or without a central point mass.
| SIS | PLAW | NFW | |||||||||||
| Constraints | χ2/d.o.f. | ⟨σv⟩ | ⟨M0⟩ | χ2/d.o.f. | ⟨α⟩ | ⟨Σ0⟩ | ⟨M0⟩ | χ2/d.o.f. | ⟨M200⟩ | ⟨c200⟩ | ⟨M0⟩ | ||
| (km s-1) | 1012 M⊙ | (M⊙ pc-2) | 1012 M⊙ | (1014 M⊙) | 1012 M⊙ | ||||||||
|
|
|||||||||||||
| S0 | 15.8/8 |
|
− | 13.1/7 |
|
|
− | 6.8/7 |
|
|
− | ||
| S0+RE | 18.6/9 |
|
− | 26.1/8 |
|
|
− | 15.3/8 |
|
|
− | ||
|
|
|||||||||||||
| S0 | 16.2/7 |
|
<2.33 | 14.3/6 |
|
|
<0.96 | 6.9/6 |
|
|
<1.70 | ||
| S0+RE | 15.3/8 |
|
|
22.2/7 |
|
|
|
11.3/7 |
|
|
|
||
Notes.Columns are (1) constraints used in the fit (S0 for weak lensing, RE for strong lensing); (2) χ2 per degree of freedom for the best-fit SIS model; (3) best-fit SIS velocity dispersion; (4) central mass component added to the SIS model; (6) χ2 per degree of freedom for the best-fit PLAW model; (7) best-fit PLAW slope; (8) best-fit PLAW normalization; (9) central mass component added to the PLAW model; (10) χ2 per degree of freedom for the best-fit NFW model; (11) best-fit NFW spherical M200; (12) best-fit NFW concentration c200; (13) central mass component added to the NFW model. Best-fit parameters and 1σ uncertainties are obtained after marginalization over the other free parameters. The first two lines show the results of the fit without a point mass; the first line corresponds to the first line of Table 2.
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