J/MNRAS/443/3528ivo://CDS.VizieR/J/MNRAS/443/3528doi:10.26093/cds/vizier.74433528CDSShamir L.Wallin J.2024-08-10T20:18:24Z2018-12-12T11:47:27ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.frgalaxiescatalogsWe applied computational tools for automatic detection of peculiar galaxy pairs. We first detected in Sloan Digital Sky Survey DR7 ~400000 galaxy images with i magnitude <18 that had more than one point spread function, and then applied a machine learning algorithm that detected ~26000 galaxy images that had morphology similar to the morphology of galaxy mergers. That data set was mined using a novelty detection algorithm, producing a short list of 500 most peculiar galaxies as quantitatively determined by the algorithm. Manual examination of these galaxies showed that while most of the galaxy pairs in the list were not necessarily peculiar, numerous unusual galaxy pairs were detected. In this paper, we describe the protocol and computational tools used for the detection of peculiar mergers, and provide examples of peculiar galaxy pairs that were detected.2014MNRAS.443.3528Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/443/3528CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/294 : The SDSS Photometric Catalog, Release 7 (Adelman-McCarthy+, 2009)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/443/3528https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/443/3528http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/443/3528https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/443/3528https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/443/3528http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/443/3528GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/443/3528/table1 (Tabular data on the example galaxies)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/443/3528/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/443/3528/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/443/3528/table1?GETtext/xml+votable180.050000true249.5576241.931060.005555555555555556Cone search capability for table J/MNRAS/443/3528/list (List used for analysis)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/443/3528/list?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/443/3528/list?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/443/3528/list?GETtext/xml+votable180.050000true249.55858641.938804070.0055555555555555566/38 254 295 523 4096-4097 4131 4243 4310 4409 4545 4620 4684 4716 4772 4901 5036 5043 5086 5116 5139 5244 5274 5404 5616 5697 5757 5772 5811 5936 6030 6037 6048 6065 6081 6257 6381 6436 6464 6556 6568 6577 6640 7554 7593 8230 8250 8259 8276 8330 8375 8383 8398 8470 8489 8523 8525 8559 8712 8717 8754 8777 8835 8894 8950 9028 9074 9084 9216 9287 9371 9381 9454 9461 9479 9504 9515 9623 9625 9641 9849 10022 10036 10204 10228 10292 10401 10515 10741 10773 10803 11051 11065 11070 11366 11461 11832 11942 11949 12380 12397 17173 17215 17249 17252 17506-17507 17511 17513 17550 17556 17558 17600 17661 17749 17816 17818 17827 17830 17833 17835-17836 17997-17998 18001-18005 18007-18008 18010-18011 18020-18021 18032-18033 18068 18077 18083-18084 18087 18090 18092-18094 18176 18302 18367 18375 18381 18383 18386 18388 18394 18405-18406 18408-18410 18414 18777 18790 18795 18802 19092 19094 19098 19107 19113 19116 19200 19416 19457 19508 19583 19669 19671-19672 19676 19696-19697 19700 19732-19733 19745 19747-19748 19750 19752-19753 19755-19756 19777 19840 19939 20287 20428 21581 21845-21846 21851-21852 21855 21957 22004 22360 22362 22519 23210 25566 25822 25847 25910 25915 25926 25929 25940 25955-25956 25969 25981 25988 25997 26016 26026 26097 26143 26214 26262 26278 26298 26306 26348 26620 26943 27002 27025 27028 27082 27260 27334 27340 27465 27480-27481 27535 27554 27560 27752 27893 27959 28042 28156 28275 28300 28347 28363 28512 28519 30033 30035 30975 31288 31290 31311 31322 31325 31338 31341 31381 31399 31404 31426 31459 31473 31652 31660 31670 31687 31718 32475 32478 32497 32499 32511 32672 44750 44795 45045 49149https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/443/3528?format=asciidefaultJ/MNRAS/443/3528/table1Tabular data on the example galaxiesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/60] Sequential numbermeta.recordintobjIDSDSS objIDmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.mainDEJ2000Declination (J2000)degpos.eq.dec;meta.mainz? Redshiftsrc.redshiftfloatnullableComDescriptions and cross identificationsmeta.notecharSloanDisplay the SDSS data for this objectmeta.ref.urlcharJ/MNRAS/443/3528/listList used for analysisDEJ2000Declination (J2000)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeq[1/500] Sequential numbermeta.recordintobjIDSDSS objIDmeta.id;meta.maincharRAJ2000Right ascension (J2000)degpos.eq.ra;meta.main