Table 3.
Comparison of 1.4 GHz VLA-COSMOS and ATLAS multi-components per flux density bin.
| Sample | Area | rms | Resolution | Nm/Ntot | N in S1.4 GHz bins |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| (deg2) | (μJy beam−1) | (arcsec) | 0.01–0.1 | 0.1–0.6 | 0.6–1 | 1-6 | 6–10 | 10–60 | 60–100 | 100–160 | > 160 | ||
| (mJy) | |||||||||||||
| 3 GHz | 2.6 | 2.3 | 0.75 | 67/10,830 | 0 | 11 | 6 | 25 | 4 | 17 | 3 | 1 | 0 |
| VLA-COSMOS | |||||||||||||
| ATLAS-CDFS | 3.7 | 30 | 10 | 41/726 | 0 | 0 | 1 | 13 | 7 | 14 | 3 | 1 | 2 |
Notes. Comparison of 3 GHz VLA-COSMOS multicomponent sources to the multi-component sources in the ATLAS 3.7 deg2Chandra Deep Field-South (CDFS) field (Norris et al. 2006). ATLAS multi-components are identified from the flag CID in Table 6 of Norris et al. (2006). 3 GHz flux densities for COSMOS multi-component sources have been converted to 1.4 GHz fluxes using a typical steep spectrum index α = 0.8. Ntot is the total number of radio sources in the survey and Nm the number of multi-component sources. The rest of the columns show the number of multi-component sources per flux density bin, from 10 μJy to 2000 mJy.
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