Table 1
Results of the variability detection analysis in eRASS1, 2, and 3.
| Number of variable sources | eRASS1 | eRASS2 | eRASS3 | |
|---|---|---|---|---|
| Above 1σ | 3828 | 3396 | 3258 | |
| Of which: | only in SCATT_LO | 2375 | 2138 | 2056 |
| only in AMPL_SIG | 711 | 596 | 554 | |
| variable in both | 742 | 662 | 648 | |
| expected FP | 1385 | 1267 | 1233 | |
| extended | 96 | 77 | 67 | |
| Above 2σ | 914 | 822 | 743 | |
| Of which: | only in SCATT_LO | 555 | 518 | 475 |
| only in AMPL_SIG | 183 | 153 | 106 | |
| variable in both | 176 | 151 | 162 | |
| expected FP | 199 | 182 | 177 | |
| extended | 33 | 27 | 14 | |
| Above 3σ | 226 | 176 | 188 | |
| Of which: | only in SCATT_LO | 83 | 67 | 82 |
| only in AMPL_SIG | 46 | 37 | 35 | |
| variable in both | 97 | 72 | 71 | |
| expected FP | 12 | 11 | 10 | |
| extended | 6 | 6 | 3 | |
Notes. We abbreviated false positive to FP. It indicates the number of sources that can be expected to be found above the particular threshold, if all sources were intrinsically non-variable, for either method individually. All sources identified at each level that are not characterised as being extended, are point-like.
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.