J/ApJ/678/851ivo://CDS.VizieR/J/ApJ/678/851doi:10.26093/cds/vizier.16780851CDSKeller S.C.Murphy S.Prior S.Dacosta G.Schmidt B.2010-11-03T10:13:36Z2010-10-06T14:34:29ZCDS support team

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

cds-question@unistra.frinfrared-photometryvisible-astronomyphotometryvariable-starsstellar-distanceWe present a search for RR Lyrae variable stars from archival observations of the Southern Edgeworth-Kuiper Belt Object survey. The survey covers 1675deg^2^ along the ecliptic to a mean depth of V=19.5, i.e., a heliocentric distance of ~50kpc for RR Lyrae stars. The survey reveals 2016 RR Lyrae candidates. Follow-up photometric monitoring of a subset of these candidates shows ~24% contamination by non-RR Lyrae variables. We derive a map of overdensity of RR Lyrae stars in the halo that reveals a series of structures coincident with the leading and trailing arms of debris from the Sagittarius dwarf galaxy. One of the regions of overdensity is found on the trailing arm, 200{deg} from the main body of the Sagittarius dwarf at a distance of ~45kpc. This distant detection of the stellar population of the outer trailing arm of Sagittarius offers a tight constraint on the motion of the dwarf galaxy. A distinctly separate region of overdensity is seen toward the Virgo overdensity.2008ApJ...678..851Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/678/851CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/375/1381 : Kinematics of RR Lyr and HB stars in NGP (Kinman+, 2007)J/AJ/132/714 : QUEST RR Lyrae survey. II. Halo overdensities (Vivas+, 2006)J/A+A/375/909 : RR Lyrae stars in the Sgr dwarf (Cseresnjes 2001)J/A+A/357/871 : RR Lyrae stars in the Sgr dwarf galaxy (Cseresnjes+, 2000)J/AcA/48/113 : OGLE RR Lyrae VI photometry (Udalski, 1998)J/AJ/115/168 : Kinematics of red giant and RR Lyrae stars (Chiba+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/678/851https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/678/851http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/678/851https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/678/851https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/678/851http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/678/851GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/678/851/table2 (Table of RR Lyrae candidates found in the present work)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/678/851/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/678/851/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/678/851/table2?GETtext/xml+votable180.050000true3.2201255.04908610.0055555555555555564/2769 5/4650 6429 6442 6528 6531 7253 7337 7425 10734 10735 10746 11063 11068 11085 11095 11099 11100 11108 11109 11115 11118 11120 11122 11158 11189 11210 11214 11232 12017 12022 12025 12026 12030 12136 12142 12144 12165 12171 12177 12192 12194 12200 12201 12202 12209 12212 12236 6/79 96 101 119 127 128 129 134 171 184 197 208 216 217 218 229 242 273 286 297 317 327 334 335 337 339 340 341 342 384 388 397 515 518 523 524 535 576 654 1035 4127 4154 4155 4182 4188 4212 4239 4240 4241 4260 4261 4263 4282 4284 4287 4297 4298 4318 4320 4321 4328 4354 4355 4360 4395 4400 4488 4612 4622 4647 4650 4651 4652 4653 4655 4658 4662 4663 4664 4666 4669 4670 4671 4674 4676 4691 4698 4715 4736 4737 4739 4743 4744 4748 4749 4763 6152 6160 12421 17038 17122 17128 17129 17131 17134 17314 17329 17870 17961 17963 17968 17977 17999 18000 18031 18049 18053 18055 18063 18100 18102 18104 18106 18109 18142 18148 18191 18194 18212 18227 18238 18275 18284 18290 18295 18304 18442 18456 18458 18459 18460 18461 18464 18465 18468 18469 18473 18475 18480 18484 18485 18490 18497 18498 18501 18502 18506 18515 18519 18520 18521 18524 18526 18527 18545 18561 18565 18571 18573 18586 18587 18588 18594 18596 18599 18604 18605 18606 18608 18609 18618 18635 18636 18638 18645 18647 18648 18652 18700 18720 18741 18768 18817 18820 18822 18823 18832 18945 19473 19478 22365 22366 22383 22386 22388 22389 22396 22397 22399 22453 22455 22458 22461 22468 22469 22474 22475 22482 22490 22497 22512 22520 22521 22523 22526 22527 23418 23467 23470 23498 23512 23547 23550 23815 23821 23832 23862 23863 23868 23869 23894 23916 23925 23953 23955 24004 24006 24082 24137 24200 24813 25039 25045 25072 25075 25085 25429 25437 25454 25463 25500 25529 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48558 48559 48564 48565 48567 48573 48574 48575 48580 48582 48583 48584 48586 48590 48591 48593 48599 48600 48603 48608 48610 48611 48616 48618 48623 48629 48631 48632 48635 48637 48639 48650 48651 48654 48659 48665 48668 48670 48671 48679 48680 48683 48690 48691 48692 48695 48696 48698 48700 48701 48702 48713 48715 48716 48717 48720 48721 48723 48724 48726 48728 48738 48742 48751 48758 48759 48761 48764 48772 48780 48782 48783 48785 48788 48794 48795 48796 48797 48813 48814 48815 48816 48817 48818 48824 48835 48840 48841 48843 48844 48845 48852 48854 48856 48857 48896 48910 48911 48913 48915 48917 48918 48919 48921 48923 48924 48926 48928 48929 48932 48935 48936 48941 48952 48958 48963 48964 48965 48966 48968 48974 48975 48976 48980 48981 49045https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/678/851?format=asciiOpticalInfrareddefaultJ/ApJ/678/851/table2Table of RR Lyrae candidates found in the present workrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintobjID[0-9. ] Object identificationmeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.mainVmagThe V band magnitude (transformed to Landolt)magphot.mag;em.opt.VfloatV-RThe (V-R) color indexmagphot.color;em.opt.V;em.opt.RfloatE(V-R)The (V-R) color excessmagphot.color.excessfloatDistHHeliocentric distancekpcpos.distance;pos.heliocentricfloat