SDSS-DR3 OVI QSOs absorbers J/AJ/140/817 ivo://CDS.VizieR/J/AJ/140/817 doi:10.26093/cds/vizier.51400817 CDS Frank S. Mathur S. Pieri M. York D.G. 2017-12-18T07:57:06Z 2012-08-22T12:11:37Z CDS support team CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France cds-question@unistra.fr quasars spectroscopy redshifted We report the results of a systematic search for signatures of metal lines in quasar spectra of the Sloan Digital Sky Survey (SDSS) data release 3 (DR3), focusing on finding intervening absorbers via detection of their OVI doublet. Here, we present the search algorithm and criteria for distinguishing candidates from spurious Ly{alpha} forest lines. In addition, we compare our findings with simulations of the Ly{alpha} forest in order to estimate the detectability of OVI doublets over various redshift intervals. We have obtained a sample of 1756 OVI doublet candidates with rest-frame equivalent width (EW)>=0.05{AA} in 855 active galactic nuclei spectra (out of 3702 objects with redshifts in the accessible range for OVI detection). 2010AJ....140..817F https://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/140/817 Catalog Research IsServedBy TAP VizieR generic service IsServedBy Conesearch service related-to J/MNRAS/354/L25 : MgII absorbers in SDSS QSOs (Bouche+, 2004) J/ApJ/639/766 : SDSS-DR3 strong MgII absorbers (Prochter+, 2006) J/MNRAS/371/495 : Catalogue of 1806 MgII absorbers from SDSS DR3 (Bouche+ 2007) http://www.sdss.org : SDSS Home Page https://cds.unistra.fr/vizier-org/licences_vizier.html https://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/140/817 https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/140/817 http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/140/817 https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/140/817 https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/140/817 http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/140/817 GET text/xml+votable https://tapvizier.cds.unistra.fr/TAPVizieR/tap Cone search capability for table J/AJ/140/817/table2 (List of OVI absorber candidates in all 3702 SDSS QSO spectra of the survey) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/140/817/table2? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/140/817/table2? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/140/817/table2? GET text/xml+votable 180.0 50000 true 206.84515 46.90794 0.005555555555555556 Cone search capability for table J/AJ/140/817/table3 (Details for category 1 OVI absorber candidates) https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/140/817/table3? https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/140/817/table3? http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/140/817/table3? GET text/xml+votable 180.0 50000 true 253.38172 36.40448 0.005555555555555556 6/523 554 4098 4101 4106 4122 4125 4128 4134 4139 4144 4149 4160 4161 4168 4169 4170 4227 4352 4788 4795 4830 4836 4837 4849 4856 4859 4862 4863 5031 5047 5049 5053 5055 5080 5089 5098 5105 5106 5117 5613 5617 5618 5621 5692 5723 5732 5740 5744 5751 5753 5774 5777 5779 5780 5807 5809 5816 5818 5820 5823 5828 5833 5834 5839 5841 5844 5853 5855 5857 5858 5879 5882 5883 5899 5911 5915 5918 5923 5931 5935 5940 5941 5945 5946 5951 5952 5958 5963 5970 5973 5978 5989 5991 5998 6010 6017 6028 6033 6036 6043 6044 6054 6055 6058 6059 6062 6068 6069 6070 6081 6082 6089 6094 6104 6106 6117 6120 6123 6129 6130 6133 6149 6196 6205 6214 6220 6224 6230 6238 6242 6247 6258 6267 6270 6337 6356 6385 6400 6406 6407 6415 6418 6427 6433 6436 6450 6453 6464 6467 6475 6477 6479 6480 6481 6486 6487 6488 6491 6493 6498 6500 6503 6506 6509 6516 6522 6525 6526 6533 6543 6550 6552 6556 6557 6576 6580 6597 6604 6615 6617 6644 7168 7170 7172 7183 7190 7194 7197 7202 7210 7211 7214 7216 7224 7230 7237 7239 7246 7247 7251 7256 7262 7274 7278 7283 7284 7288 7301 7307 7308 7311 7314 7318 7378 7424 7425 7428 7434 7444 7447 7451 7456 7459 7462 7464 7468 7469 7470 7472 7475 7478 7488 7490 7504 7515 7518 7521 7522 7537 7558 7569 8200 8201 8202 8208 8218 8224 8227 8232 8234 9201 9210 9273 9275 9302 9311 9317 9326 9327 9329 9330 9332 9342 9343 9352 9389 9412 9413 9415 9420 9423 9424 9428 9437 9456 9457 9459 9460 9464 9468 9472 9475 9483 9508 9600 9604 9609 9611 9632 9634 9733 9761 9794 9798 9800 9806 9811 9812 9826 9828 9833 9838 9851 9860 9869 9878 9879 9909 9914 9916 9922 9925 9935 9947 9953 9956 9958 9962 9966 9967 9976 10074 10092 10094 10188 10193 10212 10221 10564 10567 10571 10587 10596 10609 10611 10612 10643 10647 10649 10652 10674 10685 10688 10692 10704 10706 10712 10723 10728 10729 10742 10748 10749 10932 10955 10974 10975 10977 10993 10996 10998 11030 11031 11037 11038 11054 11057 11063 11071 11089 11091 11092 11103 11105 11110 11116 11117 11130 11131 11136 11147 11150 11160 11163 11174 11175 11176 11179 11180 11181 11191 11195 11200 11205 11208 11210 11211 11221 11224 11225 11244 11246 11253 11255 11256 11257 11259 11261 11264 11269 11271 11283 11285 11287 11290 11303 11305 11306 11307 11308 11311 11317 11318 11319 11320 11321 11325 11337 11340 11354 11361 11363 11366 11368 11371 11382 11387 11392 11403 11422 11425 11429 11432 11446 11458 11460 11461 11463 11489 11491 11495 11499 11504 11507 11596 11616 11785 11787 11788 11789 11818 11820 11822 11823 11829 11831 11842 11847 11882 11906 11911 11914 11934 11937 11938 11945 11952 12383 12396 12481 16887 17213 17239 17241 17299 17306 17317 17324 17406 17470 17514 17516 17551 17561 17664 17743 17746 17749 17751 17763 17772 17805 17812 17816 17818 17828 17833 17834 17836 17840 18006 18007 18024 18026 18032 18062 18086 18295 18404 18407 18416 18418 18521 18523 18535 18537 18538 18546 18610 18625 18626 18627 18749 18765 18770 18772 18777 18790 18839 18843 18857 18945 18952 19027 19028 19031 19034 19041 19044 19085 19087 19105 19111 19408 19409 19411 19416 19427 19432 19667 19669 19671 19676 19677 19683 19686 19690 19691 19692 19696 19749 19754 19756 19842 19993 20004 20005 20016 20034 21843 21847 21885 21973 23052 23072 23192 23210 23212 25597 25821 25847 25848 25887 25911 25919 25931 25934 25938 25953 25964 25966 25969 25977 25990 25995 26006 26011 26015 26023 26031 26037 26047 26053 26056 26061 26069 26159 26167 26178 26187 26188 26189 26209 26212 26221 26229 26233 26236 26246 26256 26264 26266 26269 26271 26280 26289 26300 26305 26313 26318 26341 26373 26375 26382 26400 26496 26497 26878 26960 26976 26981 26991 26992 26995 26998 27001 27006 27034 27037 27043 27047 27054 27062 27084 27096 27097 27098 27100 27101 27116 27118 27120 27129 27135 27228 27237 27286 27289 27324 27325 27327 27337 27341 27343 27345 27347 27348 27359 27361 27364 27369 27372 27378 27388 27427 27428 27429 27430 27435 27436 27438 27439 27445 27446 27447 27450 27460 27461 27463 27473 27479 27484 27497 27524 27526 27531 27537 27542 27544 27555 27649 27657 27663 27665 27678 27686 27687 27737 27743 27747 27748 27749 27760 27761 27777 27790 27798 27799 27803 27805 27813 27826 28160 30031 30037 30044 30045 31310 31313 31319 31373 31393 31395 31419 31422 32497 32511 36725 36766 36767 36778 36785 36792 36806 36810 36816 49103 https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/140/817?format=ascii Optical default J/AJ/140/817/table2 List of OVI absorber candidates in all 3702 SDSS QSO spectra of the survey recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Seq [1/1866] Internal catalogue number meta.id;meta.main int Cat Simbad column added by the CDS meta.id char Plate SDSS Plate number meta.id;instr.plate int Fiber SDSS Fiber number meta.id int MJD SDSS Modified Julian Date of exposure d time.epoch int zem Spectroscopic emission redshift of QSO src.redshift float zabs Redshift of OVI absorber src.redshift float SNR Signal-to-noise ratio within Lyman forest stat.snr float Qual [1/3] Quality flag: 1=excellent, 2=mediocre, 3=extremely poor meta.code.qual int beta Velocity difference beta, {delta}V/c phys.veloc;arith.diff float Sloan Display the SDSS data for this quasar meta.ref.url char _RA Positions from SDSS (right ascension part) deg pos.eq.ra;meta.main _DE Positions from SDSS (declination part) deg pos.eq.dec;meta.main
J/AJ/140/817/table3 Details for category 1 OVI absorber candidates recno Record number assigned by the VizieR team. Should Not be used for identification. meta.record int Plate SDSS Plate number meta.id;instr.plate int Fiber SDSS Fiber number meta.id;meta.main int MJD SDSS Modified Julian Date of exposure d time.epoch int zem Spectroscopic emission redshift of QSO src.redshift float zabs Redshift of OVI absorber src.redshift float SNR Signal-to-noise ratio within Lyman forest stat.snr float lam1548 ? Wavelength({AA}) of QSOALS CIV 1548 detection 0.1nm em.wl float nullable lam1550 ? Wavelength({AA}) of QSOALS CIV 1550 detection 0.1nm em.wl float nullable lam1335 ? Wavelength({AA}) of QSOALS CII 1335 detection 0.1nm em.wl float nullable lam1394 ? Wavelength({AA}) of QSOALS SiIV 1394 detection 0.1nm em.wl float nullable lam1402 ? Wavelength({AA}) of QSOALS SiIV 1402 detection 0.1nm em.wl float nullable lam1671 ? Wavelength({AA}) of QSOALS AlII 1671 detection 0.1nm em.wl float nullable lam1855 ? Wavelength({AA}) of QSOALS AlIII 1855 detection 0.1nm em.wl float nullable lam1863 ? Wavelength({AA}) of QSOALS AlIII 1863 detection 0.1nm em.wl float nullable zQSOALS ? Redshift of QSOALS system src.redshift float nullable Sloan Display the SDSS data for this quasar meta.ref.url char _RA Positions from SDSS (right ascension part) deg pos.eq.ra;meta.main _DE Positions from SDSS (declination part) deg pos.eq.dec;meta.main