Appendix 5. Working Database Source Reliability Estimation

2. Extended Source Reliability Estimation

Tables 14-22 - 6x Extended Source Reliability Matrices

These tables give the empirically determined reliability of the 2MASS 6x extended source "truth tables" in 0.5 mag bins of fiducial Ks=20 mag arcsec-2 elliptical isophotal Ks-band magnitude (k_m_k20fe). The tables are grouped into three e_score/g_score (E/G) ranges, and within each group there are tables corresponding to three different ranges of foreground stellar density.

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Key to tables:

1.0 < E/Gscores < 1.4

Table 14 - Reliability of Low Stellar Density Scans (den < 3.0)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.250 15 15 1 1 0 0 2 2 0 0 0 0 0.889 1.000
10.750 20 20 0 0 0 0 0 0 0 0 0 0 1.000 1.000
11.250 63 63 2 2 0 0 11 11 0 0 0 0 0.855 1.000
11.750 146 146 0 0 0 0 19 19 0 0 0 0 0.885 1.000
12.250 389 389 0 0 0 0 19 19 8 8 0 0 0.945 0.990
12.750 910 910 2 2 3 3 26 26 33 33 0 0 0.954 0.983
13.250 2054 2054 2 2 6 6 38 38 106 106 0 0 0.954 0.973
13.750 3777 3777 1 1 44 44 87 87 198 198 791 791 0.944 0.970
14.250 4825 4825 4 4 143 143 105 105 326 326 5603 5603 0.924 0.945
14.750 6551 6551 6 6 345 345 69 69 808 808 10973 10973 0.895 0.915
15.250 1658 1658 6 6 82 82 3 3 159 159 1227 1227 0.895 0.915
15.750 37 37 0 0 5 5 0 0 1 1 0 0 0.881 0.915

Table 15 - Reliability of Moderate Stellar Density Scans (3.0 < den < 3.6)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.250 22 22 5 5 1 1 9 9 0 0 0 0 0.730 1.000
10.750 69 69 6 6 0 0 6 6 1 1 0 0 0.926 1.000
11.250 119 119 6 6 1 1 12 12 1 1 0 0 0.906 1.000
11.750 270 270 8 8 4 4 15 15 8 8 0 0 0.925 0.986
12.250 596 596 19 19 6 6 34 34 52 52 0 0 0.907 0.961
12.750 1278 1278 22 22 23 23 58 58 87 87 0 0 0.915 0.969
13.250 2532 2532 42 42 104 104 129 129 293 293 0 0 0.878 0.949
13.750 4423 4423 80 80 420 420 128 128 572 572 969 969 0.852 0.929
14.250 4463 4463 109 109 1029 1029 103 103 1023 1023 7833 7833 0.756 0.819
14.750 4954 4954 61 61 1562 1562 88 88 1533 1533 13567 13567 0.705 0.763
15.250 1172 1172 29 29 187 187 3 3 259 259 336 336 0.705 0.763
15.750 53 53 1 1 10 10 0 0 4 4 0 0 0.705 0.763

Table 16 - Reliability of High Stellar Density Scans (3.6 < den < 4.0)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.250 2 2 7 7 1 1 13 13 1 1 0 0 0.391 1.000
10.750 5 5 12 12 2 2 38 38 1 1 0 0 0.298 1.000
11.250 7 7 14 14 2 2 38 38 0 0 0 0 0.344 1.000
11.750 21 21 11 11 6 6 56 56 2 2 0 0 0.344 0.971
12.250 36 36 18 18 19 19 41 41 10 10 0 0 0.476 0.922
12.750 84 84 29 29 36 36 19 19 23 23 0 0 0.653 0.919
13.250 159 159 55 55 102 102 10 10 61 61 0 0 0.632 0.891
13.750 239 239 84 84 300 300 18 18 116 116 85 85 0.503 0.807
14.250 149 149 47 47 448 448 16 16 201 201 945 945 0.344 0.463
14.750 58 58 7 7 289 289 4 4 93 93 537 537 0.247 0.350
15.250 2 2 0 0 7 7 0 0 3 3 0 0 0.247 0.350

1.4 < E/Gscores < 1.6

Table 17 - Reliability of Low Stellar Density Scans (den < 3.0)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.250 1 1 0 0 0 0 0 0 0 0 0 0 1.000 1.000
10.750 0 0 0 0 0 0 0 0 0 0 0 0 1.000 1.000
11.250 4 4 1 1 0 0 0 0 0 0 0 0 1.000 1.000
11.750 3 3 0 0 0 0 1 1 0 0 0 0 0.750 1.000
12.250 4 4 0 0 1 1 2 2 0 0 0 0 0.671 1.000
12.750 6 6 1 1 6 6 3 3 2 2 0 0 0.444 0.889
13.250 5 5 0 0 23 23 6 6 6 6 0 0 0.400 0.727
13.750 56 56 0 0 63 63 8 8 25 25 20 20 0.450 0.740
14.250 114 114 0 0 65 65 21 21 25 25 170 170 0.562 0.718
14.750 268 268 0 0 79 79 26 26 55 55 553 553 0.591 0.714
15.250 95 95 0 0 31 31 0 0 16 16 98 98 0.591 0.614
15.750 2 2 0 0 1 1 0 0 1 1 0 0 0.567 0.614

Table 18 - Reliability of Moderate Stellar Density Scans (3.0 < den < 3.6)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.250 1 1 0 0 0 0 3 3 0 0 0 0 0.250 1.000
10.750 5 5 1 1 0 0 0 0 0 0 0 0 1.000 1.000
11.250 3 3 1 1 0 0 0 0 0 0 0 0 1.000 1.000
11.750 11 11 1 1 1 1 1 1 2 2 0 0 0.812 0.929
12.250 12 12 4 4 5 5 2 2 7 7 0 0 0.655 0.864
12.750 12 12 1 1 31 31 7 7 15 15 0 0 0.308 0.741
13.250 16 16 12 12 156 156 14 14 28 28 0 0 0.186 0.750
13.750 97 97 5 5 370 370 39 39 65 65 28 28 0.233 0.722
14.250 103 103 6 6 319 319 54 54 60 60 432 432 0.256 0.414
14.750 203 203 4 4 420 420 45 45 144 144 1226 1226 0.342 0.443
15.250 89 89 1 1 68 68 1 1 34 34 43 43 0.342 0.443
15.750 9 9 0 0 4 4 0 0 3 3 0 0 0.342 0.443

Table 19 - Reliability of High Stellar Density Scans (3.6 < den < 4.0)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.750 0 0 1 1 0 0 1 1 0 0 0 0 0.500 1.000
11.250 0 0 2 2 0 0 2 2 0 0 0 0 0.500 1.000
11.750 1 1 3 3 3 3 2 2 0 0 0 0 0.444 1.000
12.250 2 2 2 2 4 4 2 2 2 2 0 0 0.417 0.833
12.750 0 0 4 4 12 12 1 1 1 1 0 0 0.235 1.000
13.250 1 1 5 5 22 22 3 3 1 1 0 0 0.194 1.000
13.750 5 5 3 3 69 69 9 9 9 9 2 2 0.128 0.667
14.250 13 13 7 7 73 73 12 12 13 13 95 95 0.222 0.370
14.750 5 5 1 1 52 52 3 3 15 15 93 93 0.173 0.257
15.250 2 2 0 0 1 1 0 0 1 1 0 0 0.173 0.000

1.6 < E/Gscores < 2.0

Table 20 - Reliability of Low Stellar Density Scans (den < 3.0)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
11.750 1 1 0 0 0 0 2 2 0 0 0 0 0.333 1.000
12.250 0 0 0 0 4 4 4 4 0 0 0 0 0.333 0.667
12.750 1 1 0 0 9 9 8 8 3 3 0 0 0.100 0.667
13.250 6 6 0 0 25 25 19 19 5 5 0 0 0.148 0.800
13.750 20 20 1 1 48 48 48 48 6 6 14 14 0.195 0.634
14.250 53 53 0 0 115 115 35 35 25 25 273 273 0.286 0.409
14.750 102 102 0 0 271 271 13 13 70 70 705 705 0.300 0.397
15.250 47 47 0 0 41 41 0 0 16 16 84 84 0.300 0.381

Table 21 - Reliability of Moderate Stellar Density Scans (3.0 < den < 3.6)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
11.250 2 2 1 1 0 0 2 2 0 0 0 0 0.600 1.000
11.750 2 2 1 1 1 1 0 0 1 1 0 0 0.750 1.000
12.250 1 1 4 4 14 14 9 9 5 5 0 0 0.219 0.778
12.750 6 6 2 2 38 38 53 53 12 12 0 0 0.126 0.700
13.250 8 8 1 1 115 115 79 79 19 19 0 0 0.081 0.667
13.750 33 33 2 2 194 194 100 100 42 42 44 44 0.151 0.512
14.250 87 87 13 13 426 426 63 63 83 83 758 758 0.210 0.319
14.750 119 119 7 7 733 733 17 17 111 111 1915 1915 0.184 0.247
15.250 41 41 0 0 61 61 0 0 28 28 41 41 0.184 0.247

Table 22 - Reliability of High Stellar Density Scans (3.6 < den < 4.0)

Kmag ngT ng nfuzzT nfuzz nbogT nbog nartT nart nunkT nunk nnullT nnull R Radj
10.750 1 1 1 1 2 2 10 10 0 0 0 0 0.143 1.000
11.250 0 0 2 2 1 1 6 6 0 0 0 0 0.222 1.000
11.750 2 2 1 1 1 1 3 3 1 1 0 0 0.429 1.000
12.250 0 0 4 4 11 11 12 12 3 3 0 0 0.172 0.833
12.750 2 2 2 2 18 18 9 9 4 4 0 0 0.171 0.750
13.250 2 2 2 2 42 42 14 14 5 5 0 0 0.094 0.750
13.750 12 12 4 4 59 59 19 19 10 10 9 9 0.202 0.629
14.250 16 16 5 5 85 85 9 9 37 37 202 202 0.258 0.351
14.750 11 11 0 0 38 38 3 3 23 23 105 105 0.297 0.384

[Last Updated: 2006 October 1; by T. Jarrett and R. Cutri]

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