J/MNRAS/424/L64ivo://CDS.VizieR/J/MNRAS/424/L64doi:10.26093/cds/vizier.74249064CDSMirabal N.Frias-martinez V.Hassan T.Frias-martinez E.2024-07-18T20:19:00Z2014-01-15T13:58:22ZCDS support team

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

cds-question@unistra.frgamma-ray-astronomypulsarsactive-galactic-nucleiDark matter annihilation signals coming from Galactic subhaloes may account for a small fraction of unassociated point sources detected in the second Fermi-LAT Catalogue (2FGL). To investigate this possibility, we present SIBYL, a Random Forest classifier that offers predictions on class memberships for unassociated Fermi-LAT sources at high Galactic latitudes using gamma-ray features extracted from the 2FGL. SIBYL generates a large ensemble of classification trees that are trained to vote on whether a particular object is an active galactic nucleus (AGN) or a pulsar. After training on a list of 908 identified/associated 2FGL sources, SIBYL reaches individual accuracy rates of up to 97.7 per cent for AGNs and 96.5 per cent for pulsars. Predictions for the 269 unassociated 2FGL sources at |b|>=10{deg} suggest that 216 are potential AGNs and 16 are potential pulsars (with majority votes greater than 70 per cent). The remaining 37 objects are inconclusive, but none is an extreme outlier. These results could guide future quests for dark matter Galactic subhaloes.2012MNRAS.424L..64Mhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/424/L64CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/743/171 : The 2LAC catalog (Ackermann+, 2011)J/ApJS/199/31 : Fermi LAT second source catalog (2FGL) (Nolan+, 2012)J/MNRAS/428/220 : Gamma-ray AGN type determination (Hassan+, 2013)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/424/L64https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/424/L64http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/424/L64https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/424/L64https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/424/L64http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/424/L64GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/424/L64/table1 (Predictions and voting percentages for unassociated Fermi sources in the 2FGL, ordered by RA)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/424/L64/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/424/L64/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/424/L64/table1?GETtext/xml+votable180.050000true1.05622.1370.0055555555555555566/172 189 289 428 720 731 813 1054 1538 1609 2006 2099 2754 2855 3441 3479 3871 4088 4480 4762 5010 5352 5448 6062 6292 7131 7405 7767 7936 8091 8302 8474 8571 9175 9417 9459 9647 9821 9855 10096 11290 11457 12164 12207 12277 12410 12490 12782 13083 13733 14906 15031 15783 15996 16087 17154 17341 17366 17819 18343 18366 18444 19202 19332 19421 19525 19589 20230 20481 20606 21010 21164 21438 21458 21593 21806 21898 22683 22805 22849 22855 22864 22876 23105 23227 23338 23364 24798 24836 24885 25106 25142 25234 25468 25544 25781 25820 26553 26892 26897 28506 28943 29002 29322 29607 29717 29771 29782 29803 29816 29828 29844 29991 30086 30196 30743 30781 30813 30827 30836 30968 30981 30991 30995 30999 31003 31011 31032 31093 31111 31116 31199 31221 31262 31283 31316 31575 31720 31778 31788 31796 31822 31856 31860 31976 32249 32288 32628 32739 33030 33059 33173 33198 33464 33506 33528 34107 34128 34375 34569 34593 34968 35063 35227 35826 36133 36144 36615 36716 36886 36910 36957 37479 37487 37623 38488 38511 38610 38633 38873 38911 39111 40143 40403 40422 41110 41217 41298 41964 42005 42744 42945 42976 42989 42993 43003 43194 43225 43280 43319 43435 43531 43544 43643 43660 43824 43848 43862 43879 43891 43905 43985 43996 44011 44241 44253 44284 44302 44540 44585 44654 44777 45011 45122 45189 45199 45284 45316 45397 45446 45496 45586 45618 45736 45741 45914 45970 46035 46057 46158 46285 46337 46361 46534 46568-46569 46613 46721 47154 47196 47442 47461 47606 47742 47894 47939 48019 48227 48528 48575 48685 48743 48773 48840 48844 48868 48957https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/424/L64?format=asciiGamma-rayRadiodefaultJ/MNRAS/424/L64/table1Predictions and voting percentages for unassociated Fermi sources in the 2FGL, ordered by RArecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint2FGL2FGL name, JHHMM.m+DDMMameta.id;meta.maincharP(AGN)[0/1] Probability for AGN typestat.fit.goodnessfloatP(Psr)[0/1] Probability for Pulsar typestat.fit.goodnessfloatPredPrediction (AGN or Pulsar)src.classcharSimbadSimbad column added by the CDSmeta.refcharNEDSimbad column added by the CDSmeta.refchar_RAPositions from 2FGL catalog, Nolan et al., 2012, Cat. J/ApJS/199/31 (right ascension part)degpos.eq.ra;meta.main_DEPositions from 2FGL catalog, Nolan et al., 2012, Cat. J/ApJS/199/31 (declination part)degpos.eq.dec;meta.main