Table 3
Virial quantities of Abell 2142 obtained from different techniques.
| Method | Sample | M200 [1015 M⊙] | r200 [Mpc] | rs [Mpc] | c | σr/σt | β |
|
|
|||||||
| Caustic (ℱβ = 0.5) | ALL |
|
|
|
3.7 ± 0.9 | ||
| DK | RED |
|
|
|
2.4 ± 0.6 |
|
|
| MAMPOSSt | RED |
|
|
|
|
|
0.0 ± 0.6 |
|
|
|||||||
| Kinematics |
|
2.19 ± 0.14 | 0.64 ± 0.17 | 3.4 ± 0.9 | |||
|
|
|||||||
| X-ray |
|
|
0.74 ± 0.31 | 2.8 ± 1.1 | |||
| WL |
|
2.16 ± 0.10 | 0.51 ± 0.08 | 4.3 ± 0.7 | |||
|
|
|||||||
| Combined model | 1.25 ± 0.13 | 2.16 ± 0.08 | 0.54 ± 0.07 | 4.0 ± 0.5 | |||
Notes. Values of virial mass, virial radius, mass scale radius, concentration, and two measures of the velocity anisotropy, for different techniques. Also shown are the average value of the kinematical techniques after symmetrizing the errors and the value of the combined model, obtained as the result of the average of all the values coming from the different techniques (see Sect. 5 for the average procedure). X-ray values come from Akamatsu et al. (2011), weak lensing (WL) from Umetsu et al. (2009). Both for X-ray and WL we had the values and the errors of the virial radius and the concentration: we have symmetrized these errors and propagated them to obtain the estimates of the errors on the mass scale radii.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.