Table 1.
Comparison of the median polarization degrees, ΠIDA = (P/S)median, at 44 GHz yielded by the IDA method with those measured by Jackson et al. (2010) at 43 GHz, within the flux density range Srange.
| Srange (mJy) | Nbin | NPCCS2 | ΠJackson | ΠIDA | D | Probability |
|---|---|---|---|---|---|---|
| 695–958 | 30 | 0 | 0.031 | 0.043 (+0.013, −0.008) | 0.400 | 6.8 × 10−5 |
| 958–1290 | 30 | 0 | 0.027 | 0.053 (+0.013, −0.010) | 0.433 | 1.3 × 10−5 |
| 1290–1740 | 30 | 0 | 0.031 | 0.021 (+0.009, −0.004) | 0.467 | 2.1 × 10−6 |
| 1740–3510 | 30 | 1 | 0.027 | – | – | – |
| 3510–23260 | 15 | 4 | 0.031 | 0.033 (+0.002, −0.009) | 0.496 | 6.2 × 10−4 |
| 695–23260 | 135 | 5 | 0.028 | 0.023 (+0.006, −0.002) | 0.437 | 5.2 × 10−23 |
Notes. The errors on ΠIDA correspond to the 16th and 84th percentiles of the polarization degree distribution divided by 
, Nbin being the number of sources in the bin, NPCCS2 is the number of them with polarization measurements in the PCCS2, D is the KS statistics. The last column gives the probability of the null hypothesis (the distributions of signals of sources and control fields are drawn from the same parent distribution) given by the one-sided KS test. The bottom line refers to the full sample.
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