The original value of each number is shown in parentheses.
Section 3.5.1. NVSS Sources Without a FIRST Counterpart
For the sample of NVSS detections brighter than 18 mJy, we now find that 0.54% (0.43%) lack both FIRST and WENSS counterparts. Above 12 mJy, we find that 1.8% (2.3%) of NVSS sources have no FIRST match.
Section 4.4.1. Spectroscopically-Identified Quasars
With regards to the lower left panel in Figure 19: a Kolomogorov-Smirnov test rejects the null hypothesis that the two histograms share the same parent distribution at the 99.2% (99.6%) level.Figures 6 and 7: The distributions are more sharply centered around tFIRST - tNVSS = 0. (These figures, along with Table 4, continue to motivate Δt = 0.35 as the optimal separator between "simple" and "complex" sources).
Figures 9, 11, 16: Some changes in percentages of objects reported in each class.
Figures 20 and 21: Changes in percentages of objects reported in each class, as well as steeper values of the radio spectral slope evident.
All other figures showed no qualitative or significant quantitative changes.
Bin | Simple Sources | Complex Sources | ||||
---|---|---|---|---|---|---|
Fraction | Mean | σ | Fraction | Mean | σ | |
tNVSS < 12 | 0.71 | 0.0054 | 0.042 | 0.29 | 0.55 | 0.34 |
12 < tNVSS < 13 | 0.69 | 0.020 | 0.068 | 0.31 | 0.59 | 0.36 |
13 < tNVSS < 14 | 0.67 | 0.030 | 0.11 | 0.33 | 0.62 | 0.45 |
14 < tNVSS < 15 | 0.68 | 0.061 | 0.19 | 0.32 | 0.52 | 0.47 |
Visual classification is listed at the left; automatic classification is listed along the top.
Visual classification | Total | Complex (%) | Resolved (%) | Compact (%) | ||||
---|---|---|---|---|---|---|---|---|
QSOs | Gals. | QSOs | Gals. | QSOs | Gals. | QSOs | Gals. | |
Complex | 202 | 286 | 75 | 94 | 9 | 5 | 16 | 1 |
Resolved | 87 | 79 | 6 | 42 | 75 | 58 | 19 | 0 |
Compact | 278 | 144 | 3 | 22 | 9 | 28 | 88 | 50 |
Subclass | deg-2 | Mean | Median | FWHM |
---|---|---|---|---|
Complex | ||||
All | 1.30 | -0.869 | -0.864 | 0.432 |
no SDSS | 1.10 | -0.886 | -0.881 | 0.407 |
galaxy | 0.14 | -0.746 | -0.738 | 0.432 |
pt. source | 0.062 | -0.718 | -0.693 | 0.617 |
Resolved | ||||
All | 0.69 | -0.850 | -0.843 | 0.434 |
no SDSS | 0.39 | -0.895 | -0.891 | 0.418 |
galaxy | 0.19 | -0.808 | -0.803 | 0.386 |
pt. source | 0.11 | -0.737 | -0.727 | 0.571 |
Compact | ||||
All | 0.98 | -0.715 | -0.686 | 0.823 |
no SDSS | 0.45 | -0.842 | -0.816 | 0.522 |
galaxy | 0.23 | -0.715 | -0.674 | 0.686 |
pt. source | 0.29 | -0.297 | -0.286 | 1.030 |
Subclass | deg-2 | Mean | Median | FWHM |
---|---|---|---|---|
Complex | ||||
All | 1.30 | -0.802 | -0.798 | 0.323 |
no SDSS | 1.10 | -0.813 | -0.813 | 0.304 |
galaxy | 0.14 | -0.677 | -0.674 | 0.323 |
pt. source | 0.062 | -0.740 | -0.726 | 0.392 |
Resolved | ||||
All | 0.69 | -0.785 | -0.787 | 0.334 |
no SDSS | 0.39 | -0.826 | -0.836 | 0.316 |
galaxy | 0.19 | -0.722 | -0.723 | 0.302 |
pt. source | 0.11 | -0.733 | -0.725 | 0.379 |
Compact | ||||
All | 0.98 | -0.653 | -0.584 | 0.646 |
no SDSS | 0.45 | -0.750 | -0.705 | 0.444 |
galaxy | 0.23 | -0.609 | -0.572 | 0.585 |
pt. source | 0.29 | -0.286 | -0.244 | 1.060 |
Amy E Kimball National Radio Astronomy Observatory PO Box O Socorro, NM 87801 USA Željko Ivezić Department of Astronomy Box 351580, U.W. Seattle, WA 98195-1580 USA
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