Table 5
Number of visually inspected DR9 BOSS quasar targets (third column) and identifications in the DR9Q catalog for each target selection method (first column; see Table 4 of Ross et al. 2012, and Tables 6 and 7 in the Appendix of Dawson et al. 2012).
| Selection | Maskbits | # Objects | # QSO | # QSO z > 2.15 | # STAR | # GALAXY | # ? | # BAD |
|
|
||||||||
| BOSS_TARGET1 | ||||||||
| QSO_CORE | 10 | 3468 | 13 | 1084 | 1975 | 64 | 41 | 11 |
| QSO_BONUS | 11 | 4259 | 803 | 437 | 3319 | 89 | 30 | 18 |
| QSO_KNOWN_MIDZ | 12 | 9927 | 9775 | 9121 | 36 | 3 | 56 | 57 |
| QSO_KNOWN_LOHIZ | 13 | 24 | 24 | 0 | 0 | 0 | 0 | 0 |
| QSO_NN | 14 | 72 365 | 45 319 | 34 864 | 25 541 | 569 | 407 | 529 |
| QSO_UKIDSS | 15 | 48 | 27 | 20 | 19 | 2 | 0 | 0 |
| QSO_KDE_COADD | 16 | 1362 | 305 | 202 | 921 | 56 | 50 | 30 |
| QSO_LIKE | 17 | 90 762 | 54 313 | 35 869 | 32 909 | 1699 | 938 | 903 |
| QSO_FIRST_BOSS | 18 | 3348 | 2507 | 1629 | 433 | 142 | 174 | 92 |
| QSO_KDE | 19 | 92 203 | 47 564 | 34 252 | 42 248 | 1021 | 647 | 723 |
| QSO_CORE_MAIN | 40 | 67 677 | 41 817 | 32 355 | 23 930 | 799 | 461 | 670 |
| QSO_BONUS_MAIN | 41 | 148 085 | 76 660 | 53 000 | 65 320 | 2931 | 1467 | 1705 |
| QSO_CORE_ED | 42 | 22 715 | 15 019 | 12 387 | 7055 | 198 | 169 | 274 |
| QSO_CORE_LIKE | 43 | 23 951 | 17 635 | 12 522 | 5591 | 319 | 188 | 218 |
| QSO_KNOWN_SUPPZ | 44 | 24 | 24 | 0 | 0 | 0 | 0 | 0 |
|
|
||||||||
| ANCILLARY_TARGET1 | ||||||||
| QSO_AAL | 22 | 174 | 172 | 1 | 0 | 1 | 0 | 1 |
| QSO_AALS | 23 | 281 | 277 | 2 | 0 | 0 | 1 | 3 |
| QSO_IAL | 24 | 80 | 80 | 0 | 0 | 0 | 0 | 0 |
| QSO_RADIO | 25 | 72 | 71 | 0 | 0 | 0 | 1 | 0 |
| QSO_RADIO_AAL | 26 | 58 | 58 | 0 | 0 | 0 | 0 | 0 |
| QSO_RADIO_IAL | 27 | 31 | 30 | 0 | 0 | 0 | 0 | 1 |
| QSO_NOAALS | 28 | 32 | 31 | 0 | 0 | 0 | 1 | 0 |
| QSO_GRI | 29 | 1117 | 354 | 343 | 373 | 177 | 26 | 187 |
| QSO_HIZ | 30 | 335 | 0 | 0 | 272 | 4 | 3 | 56 |
| QSO_RIZ | 31 | 728 | 47 | 42 | 545 | 78 | 11 | 47 |
|
|
||||||||
| ANCILLARY_TARGET2 | ||||||||
| HIZQSO82 | 0 | 62 | 2 | 2 | 55 | 1 | 0 | 4 |
| HIZQSOIR | 1 | 28 | 0 | 0 | 25 | 0 | 0 | 3 |
| KQSO_BOSS | 2 | 183 | 81 | 39 | 89 | 4 | 9 | 0 |
| QSO_VAR | 3 | 1380 | 856 | 296 | 431 | 85 | 5 | 3 |
| QSO_VAR_FPG | 4 | 576 | 549 | 263 | 6 | 3 | 14 | 4 |
| RADIO_2LOBE_QSO | 5 | 332 | 149 | 15 | 131 | 29 | 7 | 16 |
| QSO_SUPPZ | 7 | 208 | 208 | 0 | 0 | 0 | 0 | 0 |
| QSO_VAR_SDSS | 8 | 1887 | 568 | 166 | 1185 | 39 | 35 | 60 |
Notes. These categories overlap because many objects are selected by multiple algorithms.
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