Table 1
Characteristics of our sample of FGs and BGGs.
| Group | Lx | z | mr | σ0 | Source | FWHM |
| (×1043 erg/s) | (mag) | (km s-1) | (arcsec) | |||
| (1) | (2) | (3) | (4) | (5) | (6) | (7) |
|
|
||||||
| SDSSJ015021.27-100530.5 | 14.40 | 0.365 | 17.26 | 341 ± 44 | L | 0.7 |
| SDSSJ015241.95+010025.5 | 15.10 | 0.230 | 15.72 | 317 ± 16 | L, U | 1.1 |
| SDSSJ075244.19+455657.3 | 0.562 | 0.052 | 14.46 | 221 ± 5 | L | 0.8 |
| SDSSJ080730.75+340041.6 | 4.210 | 0.208 | 16.38 | 263 ± 21 | L | 0.7 |
| SDSSJ084257.55+362159.2 | 29.50 | 0.282 | 16.79 | ... | L | 0.8 |
| SDSSJ084449.07+425642.1 | 0.211 | 0.054 | 14.08 | 157 ± 4 | L | 0.7 |
| SDSSJ090303.18+273929.3 | 17.40 | 0.489 | 18.06 | 273 ± 54 | L, U∗ | 0.7 |
| SDSSJ094829.04+495506.7 | 6.260 | 0.409 | 18.21 | 270 ± 30 | L | 0.6 |
| SDSSJ104302.57+005418.2 | 4.990 | 0.125 | 15.98 | 235 ± 8 | L, U∗ | 0.9 |
| SDSSJ105452.03+552112.5 | 11.70 | 0.468 | 17.69 | 365 ± 61 | L | 0.7 |
| SDSSJ111439.76+403735.1 | 4.190 | 0.202 | 17.14 | 218 ± 11 | L | 0.6 |
| SDSSJ112155.27+104923.2 | 3.850 | 0.240 | 16.97 | 251 ± 21 | L, U∗ | 0.7 |
| SDSSJ114128.29+055829.5 | 2.190 | 0.188 | 16.03 | 309 ± 28 | L, U | 0.8 |
| SDSSJ114647.57+095228.1 | 4.930 | 0.221 | 16.36 | 276 ± 18 | L, U∗ | 0.6 |
| SDSSJ124742.07+413137.6 | 0.625 | 0.155 | 15.88 | 240 ± 13 | L | 0.6 |
| SDSSJ133559.98-033129.1 | 3.680 | 0.177 | 15.84 | ... | L | 0.9 |
| SDSSJ154855.85+085044.3 | 0.509 | 0.072 | 13.50 | 326 ± 9 | U | 0.7 |
| SDSSJ161431.10+264350.3 | 2.370 | 0.184 | 15.76 | 276 ± 15 | U | 0.7 |
| SDSSJ225630.04-003210.8 | 2.180 | 0.224 | 16.81 | 274 ± 20 | U | 0.7 |
| SDSSJ235815.10+150543.5 | 0.926 | 0.178 | 16.08 | 297 ± 14 | L, U | 0.8 |
Notes. Column (1): group name; Col. (2): X-ray luminosity from Santos et al. (2007); Cols. (3–5): redshift, r-band model magnitude, and aperture corrected velocity dispersion of the BGGs derived from SDSS; Col. (6): source of the photometric observations: L = LIRIS, U = UKIDSS, common galaxies with successfully fitted UKIDSS images are marked with an asterisk; Col. (7): FWHM of the Moffat PSF fitted to the stars in the image field of view.
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