Characterizing SL2S galaxy groups using the Einstein radius

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Table 5

Least-squares fitting results for the scaling relations.

Scaling law	a ± δa	b ± δb	χ²/ν

Log [R_A] – N	0.45 ± 0.04	0.007 ± 0.002	0.85	0.82
Log [R_A] – L	0.49 ± 0.04	0.06 ± 0.03^†	0.96	0.60
Log [R_A] – (N/L)_N	0.44 ± 0.06	0.2 ± 0.1	0.94	0.62

Notes. Column 1 lists the scaling law; Cols. 2 and 3 list the coefficient values in the relation Y = a + bX; Cols. 4 and 5 list the reduced χ² and the statistical significance, respectively.

^(†)

×10¹².

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