Table 6.
Sub-samples of HLXs under study.
| CSC2 | 4XMM | 2SXPS | Total (unique) | |
|---|---|---|---|---|
| Initial candidates | 195 | 360 | 110 | 665 (619) |
| With redshift | 96 | 187 | 41 | 324 (298) |
| Background | 82 | 165 | 35 | 282 (259) |
| Foreground | 2 | 3 | 0 | 5 (5) |
| Distance match | 12 | 19 | 6 | 37 (34) |
| Selected candidates | 75 | 115 | 13 | 203 (191) |
| Robust | 51 | 66 | 5 | 122 (115) |
| Weak | 15 | 35 | 7 | 57 (54) |
| Galaxy pair | 9 | 14 | 1 | 24 (22) |
| With opt. counterpart | 29 | 63 | 8 | 100 (94) |
| Soft (HR67 < −0.6) | 2 | 5 | 1 | 8 (6) |
| Hard (HR67 > −0.6) | 67 | 110 | 12 | 189 (179) |
Notes. Number counts of initial and selected HLXs in different sub-samples (see Sects. 2.7 and 3.4, respectively, for details on the sub-samples). The sample of ‘soft HLXs’ is defined in Sect. 3.5.1, and is the complementary of ‘hard HLXs’ (note that six Chandra candidates are not included in these samples, because their HR67 could not be calculated).
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.