J/AJ/167/76ivo://CDS.VizieR/J/AJ/167/76doi:10.26093/cds/vizier.51670076CDSLiao J.Du C.Deng M.Ye D.Li H.Huang Y.Shi J.Ma J.2024-11-06T20:20:47Z2024-05-13T12:29:19ZCDS support team

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

cds-question@unistra.frhigh-velocity-starsastronomical-object-identificationproper-motionsvisible-astronomytrigonometric-parallaxradial-velocitymetallicityUtilizing astrometric parameters sourced from Gaia Data Release 3 and radial velocities obtained from various spectroscopic surveys, we identify 519 high-velocity stars (HiVels) with a total velocity in the Galactocentric rest frame greater than 70% of their local escape velocity under the Gala MilkyWayPotential. Our analysis reveals that the majority of these HiVels are metal-poor late-type giants, and we show nine HiVels that are unbound candidates to the Galaxy with escape probabilities of 50%. To investigate the origins of these HiVels, we classify them into four categories and consider the impact of the Large Magellanic Cloud (LMC) potential on their backward- integration trajectories. Specifically, we find that one of the HiVels can track back to the Galactic center, and three HiVels may originate from the Sagittarius dwarf spheroidal galaxy (Sgr dSph). Furthermore, some HiVels appear to be ejected from the Galactic disk, while others formed within the Milky Way or have an extragalactic origin. Given that the LMC has a significant impact on the orbits of Sgr dSph, we examine the reported HiVels that originate from the Sgr dSph, with a few of them passing within the half-light radius of the Sgr dSph.2024AJ....167...76Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/167/76CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/352 : Distances to 1.47 billion stars in Gaia EDR3 (Bailer-Jones+, 2021)I/354 : StarHorse2, Gaia EDR3 photo-astrometric distances (Anders+, 2022)J/AJ/144/4 : Props of dwarf galaxies in Local Group (McConnachie+, 2012)J/MNRAS/490/3508 : The Southern Stellar Stream Sp. Survey (S^5^) (Li+, 2019)J/MNRAS/484/2832 : Proper motions of Milky Way glob clusters (Vasiliev, 2019)J/ApJ/886/154 : Sgr stream K- & M-giants and BHB stars (Yang+, 2019)J/MNRAS/506/150 : The GALAH+ Survey DR3 (Buder+, 2021)J/ApJS/252/3 : High-veloc * in the Gal. halo from LAMOST & Gaia (Li+, 2021)J/MNRAS/505/5978 : Gaia EDR3 view Galactic globular clusters (Vasiliev+, 2021)J/MNRAS/501/2279 : Stars in the Sagittarius stream (Vasiliev+, 2021)J/AJ/166/12 : Velocity data for 88 very high velocity stars (Li+, 2023)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/167/76https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/167/76http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/167/76https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/167/76https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/167/76http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/167/76GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/167/76/table6 (Catalog of 519 HiVels considering the impact of the Large Magellanic Cloud)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/167/76/table6?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/167/76/table6?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/167/76/table6?GETtext/xml+votable180.050000true201.76813310917-44.50090894646990.0055555555555555566/132 263 316 359 464 667 891 1034 2178 2441 2608 4160 4187 4291 4527 4640 4935 4953 4970 5183 5266 5422 5493 5524 5546 5582 5657 5701 5705 5955 6260 6301 6948 7308 7377 7884 8201 8207 8209 8216 8228 8239 8256 8262-8263 8279 8284 8336 8345 8349 8387 8392 8455 8459 8465 8469-8470 8475 8479 8506-8507 8510 8547 8554-8555 8579 8595 8601 8603 8638 8643 8661 8663 8674 8716 8800 8805 8846 8856 8949 8984 9002 9005 9009 9049 9087 9089 9102 9114 9119 9146 9154 9156 9171 9178 9181 9186 9194 9217 9225 9227 9301 9309 9331 9345 9364 9377 9396 9415 9429 9443 9450 9461 9500 9544 9609 9621 9651 9662 9665 9695 9769 9771 9774 9817 9823-9824 9828 9832 9893 9921 9927 9954 10008 10039 10092 10153 10188 10204 10281 10301 10333 10349 10377 10381 10407 10439 10448 10450 10480 10499 10504 10517 10552 10666 10704 10752 10835 10848 11029 11055 11072 11112 11126 11141 11149 11284 11293 11305 11338 11354 11394 11443 11789 12122 12353 12608 12743 13148 13432 13646 13667 13973 14129 14516 14523 14646 14779 14936 14939 14941 14962 15050 15056 15075 15088 15104 15155 15262 16448 16490 16611 16993 17315 18145 18423 18536 18610 18761 18852 18986 19100 19421 19605 19648 19763 19870 20030-20031 20069 20129 20156 20189 20495 20531 23209 23226 23461 23654 23745 24016 24559 24706 24726 24840 24951 24963 25230 25468 25583 25627 25795 25804 25822 25922 25933 25942 25946 25953 25958 25981 25984 25994 26120 26184 26189 26203 26213 26264 26293 26309 26331 26338 26368 26378 26382 26442 26459 26500 26548 26560 26587 26599 26663 26913 26942 26953 26957 26972 27007 27018 27054 27083 27095-27096 27206 27225 27278 27320 27548 27650 27695 27711 27749 27752 27788-27789 27815 27881 27897 27974 27981 27990 28013 28068 28116 28137 28188 28196 28561 29000 29437 29972 30198 30293 30441 30549 30877 30886 30938 30955-30956 30966 31007 31081 31104 31142 31159 31207 31250 31253 31309 31320 31337 31339 31373 31389 31402 31412 31417 31422 31426 31430 31445 31447 31452 31457 31472-31473 31476 31504-31505 31510 31514 31518 31542 31552 31567 31574 31619 31622-31623 31637 31642 31656 31667 31669 31678-31679 31706 31746 31798 31865 31873 31878 32314 32323 32336 32364 32412 32427 32433 32440 32461 32466 32472 32474 32511 32521 32592 32615 32661 32699 32736 32831 33067 33445 33801 34681 34844 35234 36503 37034 37249 37389 38355 38393 38465 38618 38688 38739 38954 39552 39629 39725 40955 41167-41168 41176 41206 41264 41268 41276 41312 41995 42037 42061 43204 43230 43254 43301 43335 43383 43418 43496 43553 43587 43594 43633 43795 43912 44041 44088 44182 44204-44205 44229 44301 44307 44312 44349 44448 44492 44575-44576 44678 44754 44781 44821 44844 44979 45141 45264 45282 45449 45595 45644 45802 45865 45887 45944 46273 46370 46981 47080 47136 47176 47253 47261 47312 47335 47351 47372 47384 47411 47428 47435 47457 47501 47575 47614 47617 47620 47632 47640 47655 47679 47761 47779 47784 47873 48044 48057 48390 48398 48839 490741.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/167/76?format=asciiOpticaldefaultJ/AJ/167/76/table6Catalog of 519 HiVels considering the impact of the Large Magellanic Cloud_RA.icrsRight ascension (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.raindexed_DE.icrsDeclination (ICRS) at Epoch=J2000, proper motions taken into accountdegpos.eq.decindexedP-ub[0/0.97] Unbound possibility, this workstat.fit.goodnessfloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAICRS[0/360] Gaia DR3 Right ascension, (ICRS at Epoch=2016.0)degpos.eq.ra;meta.mainDEICRS[-80/79] Gaia DR3 Declination (ICRS at Epoch=2016.0)degpos.eq.dec;meta.mainplx[0.03/3.4] Parallax, Gaia DR3maspos.parallax.trigdoublee_plx[0.009/0.04] Error on plxmasstat.error;pos.parallaxdoubleplx-zp[-0.07/-0.001] Parallax zero-point correction, after Lindegren+, 2021A&A...649A...4Lmaspos.parallax.trigdoublepmRA[-152/224] Proper motion in right ascension direction, Gaia DR3mas.yr**-1pos.pm;pos.eq.radoublee_pmRA[0.006/0.04] Error of pmRAmas.yr**-1stat.error;pos.pm;pos.eq.radoublepmDE[-290/175] Proper motion in declination direction, Gaia DR3mas.yr**-1pos.pm;pos.eq.decdoublee_pmDE[0.007/0.04] Error of pmDEmas.yr**-1stat.error;pos.pm;pos.eq.decdoubleplx-pmra-corr[-0.53/0.66] Correlation between parallax and proper motion in right ascension , Gaia DR3pos.parallax.trigdoubleplx-pmdec-corr[-0.59/0.61] Correlation between parallax and proper motion in declination , Gaia DR3pos.parallax.trigdoublepmra_pmdec-corr[-0.7/0.7] Correlation between proper motion in right ascension and in declination , Gaia DR3stat.correlation;pos.pm;pos.eq.decdoubleruwe[0.77/1.4] Renormalised unit weight error, Gaia DR3stat.errordoubleGmag[8.58/15] G-band mean magnitude, Gaia DR3magphot.mag;em.opt.VdoubleBP-RP[-0.08/2.71] BP-RP color, Gaia DR3magphot.color;em.opt.B;em.opt.RdoubleTeff[3743/18453]? Effective temperature the cross-match surveyKphys.temperature.effectivedoublenullablee_Teff[8/1028]? Error of TeffKstat.error;phys.temperature.effectivedoublenullablelogg[0.44/4.86]? Surface gravity, log, the cross-match surveylog(cm.s**-2)phys.gravitydoublenullablee_logg[0.01/0.6]? Error of logglog(cm.s**-2)stat.errordoublenullable[Fe/H][-2.54/0.16]? Metallicity, the cross-match surveyphys.abund.Zdoublenullablee_[Fe/H][0.009/0.5]? Error on metallicitystat.error;phys.abund.Fedoublenullablea/FeH[-0.49/0.57]? Alpha abundance, the cross-match surveyphys.abunddoublenullablee_a/FeH[0.001/0.2]? Error of a/FeHstat.errordoublenullableRVel[-487/605] Weighted mean radial velocity, Equation 1km.s**-1spect.dopplerVeloc;stat.meandoublee_RVel[0.03/8] Error of radial velocitykm.s**-1stat.error;spect.dopplerVelocdoubleGGDalpha[0.17/2.8] Corresponding to alpha in equation 2, after Bailer-Jones+, 2021, I/352meta.codedoubleGGDbeta[0.12/7.41] Corresponding to beta in equation 2, after Bailer-Jones+, 2021, I/352meta.codedoubleDist[0.29/16.5] Heliocentric distance (1)kpcpos.distancedoublee_Dist[0.2/15] Lower uncertainty on Distkpcstat.errordoubleE_Dist[0.2/20] Upper uncertainty on Distkpcstat.error;stat.maxdoubleRGC[2.06/19.6] Galactocentric distance (1)kpcpos.distance;pos.galactocentricdoublee_RGC[1/18] Lower uncertainty on RGCkpcstat.errordoubleE_RGC[2.59/21.7] Upper uncertainty on RGCkpcstat.error;stat.maxdoubleVGC[334/685] Galactocentric total velocity (1)km.s**-1phys.veloc;pos.galactocentricdoublee_VGC[280/608] Lower uncertainty on VGCkm.s**-1stat.errordoubleE_VGC[343/836] Upper uncertainty on VGCkm.s**-1stat.error;stat.maxdoubleVphi[-498/593] Rotation velocity, this workkm.s**-1phys.veloc.rotatdoubleP-disk[0/1] Probablity of the star tracking back to the disk, this workstat.fit.goodnessdoubleP-sgr[0/1] Probablity of the star tracking back to the Sgr, this workstat.fit.goodnessdoublePstar[0.99/1] Probability from DSC-Combmod of being a single starstat.fit.goodnessdoubleRVel-DR3[-487/606] Gaia DR3 radial velocitykm.s**-1spect.dopplerVeloc;stat.meandoublee_RVel-DR3[0.1/34] Error of RVel-DR3km.s**-1stat.errordoubleGaiaUnique source designation, Gaia DR3meta.id;meta.maincharcrossmatch-surveyCross-match the name of survey idmeta.idcharsurveyidUnique ID in the surveymeta.idcharGGDrlenCorresponding to L in equation 2, after Bailer-Jones+, 2021, I/352meta.codecharvar-flagFlag indicating if variability was identified in the photometric datameta.codechar