J/MNRAS/509/1227ivo://CDS.VizieR/J/MNRAS/509/1227doi:10.26093/cds/vizier.75091227CDSChen B.H.Hashimoto T.Goto T.Kim S.J.Santos D.J.D.On A.Y.L.,Lu T.-Y.Hsiao T.Y.-Y.2025-02-12T20:11:55Z2024-10-23T09:46:38ZCDS support team

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

cds-question@unistra.frradio-sourcesThe origins of fast radio bursts (FRBs), astronomical transients with millisecond time-scales, remain unknown. One of the difficulties stems from the possibility that observed FRBs could be heterogeneous in origin; as some of them have been observed to repeat, and others have not. Due to limited observing periods and telescope sensitivities, some bursts may be misclassified as non- repeaters. Therefore, it is important to clearly distinguish FRBs into repeaters and non-repeaters, to better understand their origins. In this work, we classify repeaters and non-repeaters using unsupervised machine learning, without relying on expensive monitoring observations. We present a repeating FRB recognition method based on the Uniform Manifold Approximation and Projection (UMAP). The main goals of this work are to: (i) show that the unsupervised UMAP can classify repeating FRB population without any prior knowledge about their repetition, (ii) evaluate the assumption that non-repeating FRBs are contaminated by repeating FRBs, and (iii) recognize the FRB repeater candidates without monitoring observations and release a corresponding catalogue. We apply our method to the Canadian Hydrogen Intensity Mapping Experiment Fast Radio Burst (CHIME/FRB) data base. We found that the unsupervised UMAP classification provides a repeating FRB completeness of 95 per cent and identifies 188 FRB repeater source candidates from 474 non-repeater sources. This work paves the way to a new classification of repeaters and non-repeaters based on a single epoch observation of FRBs.2022MNRAS.509.1227Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/509/1227CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/509/1227https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/509/1227http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/509/1227https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/509/1227https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/509/1227http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/509/1227GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/509/1227/table (CHIME FRB ML classification)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/509/1227/table?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/509/1227/table?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/509/1227/table?GETtext/xml+votable180.050000true93.4267.070.0055555555555555566/455 494 637 663 692 719 771 787 822 971 982 1199 1238 1267 1277 1320 1398 1454 1629 1654 1742 1832 1858 1885 2023 2034 2056 2065 2085 2088 2099 2123 2182 2327 2356 2773 2823 2876 2914 2916 2971 3029 3084 3117 3147 3178 3199 3318 3328 3350 3386 3401 3444 3528 3563 3567 3623 3648 3678 3683 3785 3816 3855 3892 3902 3929 3933-3934 3952 3961 3964 3993 4017 4022 4033 4039 4051 4053 4057 4068-4069 4071 4085-4087 4092 4095 4097 4157 4179 4246 4394 4546 4789 4800 4817 5093 5266 5363 5395 5398 5503 5525 5553 5608 5611 5639 5643 5646 5678 5798 5801 5883 5899 5975 6102 6121 6134 6142 6341 6351 6404 6565 6569 6671 6770 6773 6816 6833 6983 7008 7021-7022 7042 7051 7112 7215 7243 7283 7343 7345 7390 7405 7490 7495 7509 7535 7549 7612 7632 7661-7662 7682 7698 7713 7717 7750 7763 7773 7815 7821 7843 7852 7859 7868 7872 7923 7929 7950 7975 7981 7983 8015 8019 8035 8063 8072 8111 8123 8142 8145 8152-8154 8171 8183-8184 8186 8191 8227 8553 8656 8805 8927 8957 9008 9016 9024 9082 9093 9121 9259 9337 9457 9533 9544 9619 9632 9671 9693 9725 9731 9761 9813 9824 9872 9884 9956 10004 10015 10073 10085 10115 10170 10174 10194 10220 10227 10230 10259 10353 10369 10484 10551 10567 10708 10729 10834 10952 11063 11117 11166 11177 11186-11187 11202 11231 11244 11331 11405 11455 11494 11536 11566 11570 11616 11629 11647 11668 11681 11727 11731 11748 11766 11770 11831 11838 11851 11914 11940 11967 11977 11995 11999 12024 12086 12098 12104 12132 12134 12146 12148 12157 12195 12210-12211 12220 12222 12229 12231 12271 12275 12277 12282 12286-12287 12620 12978 13112 13121 13135 13158 13213 13222 13314 13354 13369 13617 13688 13690 13737 13770 13778 13803 13927 13931 13941 13943 14101 14114 14220 14401 14427 14476 14765 14861 14975 15244 15288 15309 15312 15329 15341 15466 15518 15524 15537 15539 15590 15814 15843 15873 15899 15905 15912 15969 15989 16081 16115 16137 16149 16156 16159 16169 16174 16215 16235 16244 16287 16298 16310 16315 16330-16331 16340 16347 16363 16366 16371 16373 16375-16377 16383 17611 17881 17898 18023 18167 18385 18410 19153 19227 19469 19522 19547 19581 19635 19862 19869 19876 19890 19960 20021 20053 20102 20230 20435 20457 22084 22297 22315 22321 22447 22757 23030 23036 23233 23411 23470 23544 23788 23974 24019 24095 24112 24123 24255 24285 24316 24367 24379 24507 24563 25887 26215 26233 26391 26605 26619 26895 27131 27485 27856 28150 28189 28273 28278 28326 28370 28433 28470 28519 28552 28555 28576 28647 28663 30079 31049 31153 31243 31359 31603 31626 31635 31870 31979 31995 32053 32062 32100 32235 32280 32404 32415 32439 32538 32541 40940https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/509/1227?format=asciiRadiodefaultJ/MNRAS/509/1227/tableCHIME FRB ML classificationrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTNSNameName ID provided for each burst, FRBYYYYMMDDA (1)meta.id;meta.maincharClass[-1/1]? FRB classification provides by machine learning model (2)src.classintnullableGroupClustering result for machine learning model output, see Fig.3 of the papermeta.idcharXposThe x coordinate of the low dimensional projection of each FRB, see Fig.2, 3, 4 of the paperpos.cartesian.x;instr.detdoubleYposThe y coordinate of the low dimensional projection of each FRB, see Fig.2, 3, 4 of the paperpos.cartesian.y;instr.detdoubleSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main