Table 4.
Pearson χ2-test statistic of counts-in-cell distribution for the masked LoTSS-DR1 value-added source catalogue with “mask d” for four flux density thresholds.
| Smin | N | nc |
 |
d.o.f.P |
 |
d.o.f.CP |
|---|---|---|---|---|---|---|
| (mJy) | ||||||
| 1 | 102 940 | 1.44 | 30.67 | 32 | 0.76 | 31 |
| 2 | 51 288 | 1.22 | 11.67 | 20 | 1.12 | 19 |
| 4 | 30 556 | 1.15 | 7.69 | 14 | 1.38 | 13 |
| 8 | 19 612 | 1.11 | 3.52 | 11 | 0.46 | 10 |
Notes. We compare a Poisson (P) and a Compound Poisson (CP) distribution to the measured histograms. For each threshold value, we provide the number of sources in the catalogue, the clustering parameter nc, the reduced χ2-values (χ2/d.o.f.) and the degrees of freedom (d.o.f. = number of histogram bins minus number of parameters of distribution) for both statistical models.
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.