J141657.5+231239.2
Link to XCS-DR1 entry
 |  |
| Fig. 1: The SDSS optical image with the XCS X-ray contours overlaid. | Fig. 2: The colour-magnitude diagram used to determine the magnitude gap. Green triangles are spectroscopic cluster members and circles are photometric cluster members. Red triangles are spectroscopic non-members. Only cluster members within ±0.2 mag of the r-i colour of the fossil galaxy (dotted lines) are used to calculate the gap. The two diamonds denote the second and the fourth brightest galaxy. |
Notes
This z=0.1159 system is located at
14:16:57.5 +23:12:39.2. The CMD shows an RS and the magnitude gap is
3.1 based on SDSS photometric data. We note that there is a bright
galaxy just outside 0.5R200 that would change
Δm14 if it were included. The X-ray temperature of
the system is TX=0.9 keV and the X-ray emission peak lies
~7.0 kpc from the FG. The X-ray source is extended with
R200=0.56 Mpc or ~20R90. No velocity
dispersion could be measured for this system. This system appears to
be associated with XMMXCS J141627.7+231525.9.
Fossil System
| XCS ID | Δm14 | R200 | LX | TX | Ltot | ΣL24 |
|---|
| XMMXCS J141657.5+231239.2 | 3.1 | 0.56 | 0.017 | 0.9 | 1.51 | 0.171 |
Fossil Galaxy
| SDSS ID | z | M∗ | Age | Z | log(SSFR) | Lgal |
|---|
| J141657.46+231242.5 | 0.1159 | 0.42 | 8.7 | 0.033 | -11.26 | 1.27 |