J/AJ/132/714ivo://CDS.VizieR/J/AJ/132/714doi:10.26093/cds/vizier.51320714CDSVivas A.K.Zinn R.2017-12-06T07:38:32Z2008-04-03T12:28:24ZCDS support team

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

cds-question@unistra.frvariable-starsastrometrystellar-distanceThe first catalog of the RR Lyrae stars (RRLSs) in the Galactic halo by the Quasar Equatorial Survey Team (QUEST) has been searched for significant overdensities that may be debris from disrupted dwarf galaxies or globular clusters. These RRLSs are contained in a band 23 wide in declination that spans 165{deg} in right ascension and lie 4 to 60kpc from the Sun. Away from the major overdensities, the distribution of these stars is adequately fitted by a smooth halo model, in which the flattening of the halo decreases with increasing galactocentric distance (as reported by Preston et al., 1991ApJ...375..121P). This model was used to estimate the background of RRLSs on which the halo overdensities are overlaid. A procedure was developed for recognizing groups of stars that constitute significant overdensities with respect to this background. To test this procedure, a Monte Carlo routine was used to make artificial RRLS surveys that follow the smooth halo model but with Poissondistributed noise in the numbers of RRLSs and, within limits, random variations in the positions and magnitudes of the artificial stars. The 104 artificial surveys created by this routine were examined for significant groups in exactly the same way as the QUEST survey.2006AJ....132..714Vhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/132/714CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AJ/127/1158 : QUEST RR Lyrae Survey first catalog (Vivas+, 2004)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/132/714https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/132/714http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/132/714https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/132/714https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/132/714http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/132/714GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/132/714/table2 (Galactic coordinates and distances of the RRLS)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/132/714/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/132/714/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/132/714/table2?GETtext/xml+votable180.050000true61.6837083-0.37483330.0055555555555555565/5460 6479 6483 6484 6488 6499 6504 6543 6547 6563 6824 7823 7827 7843 7844 7848 6/21495 21815 21820 21823 21831 21834 21839 21844 21846 21849 21850 21856 21865 21893 21907 21908 22773 22775 22783 22874 22880 22881 22883 22884 22889 22919 22923 22926 22928 22931 22934 22938 22945 22947 22948 22950 23119 23125 25590 25591 25596 25598 25599 25847 25849 25851 25852 25853 25854 25913 25914 25915 25925 25929 25931 25940 25945 25946 25956 25957 25958 25960 25961 25962 25990 25991 25993 25995 26001 26002 26004 26005 26006 26008 26020 26022 26024 26025 26026 26165 26166 26167 26171 26182 26183 26186 26187 26193 26194 26195 26196 26200 26201 26208 26209 26211 26212 26216 26217 26247 26251 26258 26259 26261 26264 26265 26266 26272 26273 26274 26276 26278 26280 26281 26282 26875 26877 26879 26935 26937 26941 26951 26955 26956 26957 26958 26964 26965 26966 26970 26977 26978 26979 26982 26984 26985 26986 27013 27015 27019 27021 27022 27026 27028 27030 27032 27041 27042 27048 27191 27195 27197 27206 27207 27212 27213 27216 27217 27220 27224 27225 27232 27235 27278 27279 27280 27281 27284 27286 27288 27289 27290 27301 30965 30967 30971 30973 30974 30975 31136 31138 31139 31144 31287 31302 31303 31312 31313 31316 31318 31320 31321 31322 31328 31329 31331 31332 31336 31338 31367 31380 31381 31384 31385 31396 31397 31398 31403 40950 40957 40959 45045 45046 45047 45049 45051 45052 45053 45054https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/132/714?format=asciiOpticaldefaultJ/AJ/132/714/table2Galactic coordinates and distances of the RRLSrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[VZA2004]Identification number (same as Paper I, Vivas et al., Cat. <J/AJ/127/1158>)meta.id;meta.mainintGLONGalactic longitudedegpos.galactic.lonGLATGalactic latitudedegpos.galactic.latfloatVmag0Extinction corrected V band magnitudemagphot.mag;em.opt.VfloatxGalactocentric X coordinatekpcpos.cartesian.x;pos.galactocentricfloatyGalactocentric Y coordinatekpcpos.cartesian.y;pos.galactocentricfloatzGalactocentric Z coordinatekpcpos.cartesian.z;pos.galactocentricfloatRHelHeliocentric distancekpcpos.distance;pos.heliocentricfloatRGalGalactocentric distancekpcpos.distance;pos.galactocentricfloatSimbadSimbad column added by the CDSchar_RAPosition (as computed from Vivas et al., J/AJ/127/1158) (right ascension part)degpos.eq.ra;meta.main_DEPosition (as computed from Vivas et al., J/AJ/127/1158) (declination part)degpos.eq.dec;meta.main