J/MNRAS/485/4726ivo://CDS.VizieR/J/MNRAS/485/4726doi:10.26093/cds/vizier.74854726CDSKoposov S.E.Belokurov V.Li T.S.Mateu C.Erkal D.Grillmair C.J.,Hendel D.Price-Whelan A.M.Laporte C.F.P.Hawkins K.Sohn S.T.,del Pino A.Evans N.W.Slater C.T.Kallivayalil N.Navarro J.F.,(the Oats: Orphan Aspen Treasury Collaboration)2024-08-19T20:17:45Z2022-11-25T14:20:49ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyvariable-starshalo-starsastrometrystellar-distanceproper-motionsvisible-astronomyWe use astrometry, broad-band photometry, and variability information from the Data Release 2 of ESA's Gaia mission (GDR2) to identify members of the Orphan Stream (OS) across the whole sky. The stream is traced above and below the celestial equator and in both Galactic hemispheres, thus increasing its visible length to ~210{deg} equivalent to ~150kpc in physical extent. Taking advantage of the large number of RR Lyrae stars in the OS, we extract accurate distances and proper motions across the entire stretch of the tidal debris studied. As delineated by the GDR2 RR Lyrae, the stream exhibits two prominent twists in its shape on the sky which are accompanied by changes in the tangential motion. We complement the RR Lyrae maps with those created using GDR2 Red Giants and the DECam Legacy Survey Main Sequence Turn-Off stars. The behaviour of the OS track on the sky is consistent across all three tracers employed. We detect a strong non-zero motion in the across-stream direction for a substantial portion of the stream. Such a misalignment between the debris track and the streaming velocity cannot be reproduced in a static gravitational potential and signals an interaction with a massive perturber.2019MNRAS.485.4726Khttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/485/4726CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/622/A60 : Gaia DR2 misclassified RR Lyrae list (Clementini+, 2019)J/AJ/153/204 : RR Lyrae stars from the PS1 3{pi} survey (Sesar+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/485/4726https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/485/4726http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/485/4726https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/485/4726https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/485/4726http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/485/4726GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/485/4726/table15 (Subset of the likely Orphan RRL selected (Table 1 and 5))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/485/4726/table15?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/485/4726/table15?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/485/4726/table15?GETtext/xml+votable180.050000true155.3670617.520190.0055555555555555565/1420 6/4432-4433 4473 4479 4564 4567 4573 5162 5248 5256 5259 5289 5639 5648 5659 5686 5688 5690 5694 5736 5776 5781 5787 5789 5814 5821 5823 5858-5859 5866 7270 24616 24715 24751 25113 25119 25194 25288 25316 25319 25336 26695 26740 27052 27496 27630 27642 38226 38233 38265 41055 41072-41073 41077 41079 41081 41159 41164 41217 41221-41222 41232 41546 45590 45598 45601 45636-45638 45652 45832 45839 45842 45852 45895-45898 45919 45937 46595 46599-46601 46621 46644 46694 46701 46705-46707 46889 46892-46893 469801.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/485/4726?format=asciiOpticaldefaultJ/MNRAS/485/4726/table15Subset of the likely Orphan RRL selected (Table 1 and 5)SimbadNameSimbad column added by the CDSmeta.idcharnullablee_pmRAError on pmRA (1)mas/yrstat.error;pos.pm;pos.eq.radouble_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decnullableindexedpmDEProper motion in declination (1)mas/yrpos.pm;pos.eq.decdoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRA_ICRSRight ascension (ICRS) at Ep=2015.5 (1)degpos.eq.ra;meta.mainDE_ICRSDeclination (ICRS) at Ep=2015.5 (1)degpos.eq.dec;meta.mainEBVColour excess E(B-V)phot.color.excessdoublepmRAProper motion in right ascension (1)mas/yrpos.pm;pos.eq.radoublee_pmDEError on pmDE (1)mas/yrstat.error;pos.pm;pos.eq.decdoublepmRApmDEcorCorrelation between proper motion in right ascension and in declination (1)stat.correlationdoubleGmagGaia DR2 G-band magnitude (1)magphot.mag;em.optdoubleBP-RPGaia DR2 BP-RP colour index (1)magphot.color;em.opt.B;em.opt.RdoubleE(BP/RP)Gaia DR2 BP/RP excess factor (1)arith.factordoubleDistHeliocentric distancekpcpos.distancedoubleGaiaDR2Gaia DR2 source identifiermeta.id;meta.mainPeriod? Light-curve perioddtime.perioddoublenullableTypeBailey typemeta.code;src.varcharr_TypeReferences for Type (1)meta.noteintNoteReference legend (Gaia, PS1 or ThisWork)meta.notechar