J/ApJ/886/154ivo://CDS.VizieR/J/ApJ/886/154doi:10.26093/cds/vizier.18860154CDSYang C.Xue X.-X.Li J.Liu C.Zhang BoRix H.-W.Zhang L.Zhao G.,Tian H.Zhong J.Xing Q.Wu Y.Li C.Carlin J.L.Chang J.2021-12-07T13:01:04Z2021-04-22T08:07:35ZCDS support team

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

cds-question@unistra.frm-starsgiant-starschemical-abundancesproper-motionsradial-velocitystellar-distancevisible-astronomyWe characterize the kinematic and chemical properties of ~3000 Sagittarius (Sgr) stream stars, including K-giants, M-giants, and blue horizontal branch stars (BHBs), selected from SEGUE-2, Large Sky Area Multi-Object Fibre Spectroscopic Telescope, and Sloan Digital Sky Survey separately in Integrals-of-Motion space. The orbit of the Sgr stream is quite clear from the velocity vector in the X-Z plane. Stars traced by K-giants and M-giants show that the apogalacticon of the trailing steam is ~100kpc. The metallicity distributions of Sgr K-giants, M-giants, and BHBs indicate that the M-giants are on average the most metal-rich population, followed by K-giants and BHBs. All of the K-giants, M-giants, and BHBs indicate that the trailing arm is on average more metal-rich than the leading arm, and the K-giants show that the Sgr debris is the most metal-poor part. The {alpha}-abundance of Sgr stars exhibits a similar trend with the Galactic halo stars at lower metallicity ([Fe/H]<~-1.0dex), and then evolve down to lower [{alpha}/Fe] than disk stars at higher metallicity, which is close to the evolution pattern of the {alpha}-element of Milky Way dwarf galaxies. We find that VY and metallicity of K-giants have gradients along the direction of the line of sight from the Galactic center in the X-Z plane, and the K-giants show that VY increases with metallicity at [Fe/H]>~-1.5dex. After dividing the Sgr stream into bright and faint streams according to their locations in equatorial coordinates, the K-giants and BHBs show that the bright and faint streams present different VY and metallicities, the bright stream is on average higher in VY and metallicity than the faint stream.2019ApJ...886..154Yhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/886/154CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)I/345 : Gaia DR2 (Gaia Collaboration, 2018)I/347 : Distances to 1.33 billion stars in Gaia DR2 (Bailer- Jones+, 2018)V/164 : LAMOST DR5 catalogs (Luo+, 2019)J/AJ/113/634 : The survival of Sagittarius dwarf galaxy (Ibata+ 1997)J/A+A/465/815 : Abundances of Sgr dSph stars (Sbordone+, 2007)J/AJ/135/1580 : Element abundances in ten red giants of Car dSph (Koch+, 2008)J/AJ/136/2050 : SEGUE stellar parameter pipeline. II. (Lee+, 2008)J/ApJ/684/1143 : BHB candidates in the Milky Way (Xue+, 2008)J/ApJ/701/1053 : Abundances of 8 stars in the Draco dSph (Cohen+, 2009)J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)J/A+A/520/A95 : Abundances of red giants in M54 and Sgr dSph (Carretta+, 2010)J/A+A/523/A17 : Individual stars in Fornax dSph center (Letarte+, 2010)J/other/RAA/11.924 : Atmospheric parameters for 771 stars (Wu+, 2011)J/ApJ/738/79 : SDSS-DR8 BHB stars in the Milky Way's halo (Xue+, 2011)J/A+A/538/A100 : Abundances red giants in Carina dSph (Lemasle+, 2012)J/ApJ/751/102 : Equivalent widths of 9 RGB in Carina dSph (Venn+, 2012)J/ApJ/778/149 : Abundances for 3 stars in Sgr dSph (McWilliam+, 2013)J/A+A/572/A88 : Measured EWs for Fornax RGB stars (Lemasle+, 2014)J/ApJ/784/170 : SEGUE K giant survey. II. Distances of 6036 stars (Xue+, 2014)J/ApJ/805/189 : Highly likely members of the Sgr stream (Hyde+, 2015)J/other/RAA/15.1154 : M-giant star candidates in LAMOST DR 1 (Zhong+, 2015)J/ApJ/817/40 : High-resolution NIR spectra of local giants (Feuillet+, 2016)J/ApJ/823/59 : WISE and 2MASS photometry of M giant stars (Li+, 2016)J/ApJ/850/96 : PS1 3{pi} RRab stars within Sgr stream (Hernitschek+, 2017)J/ApJ/844/L4 : PS1 RRab for tracing outer Virgo overdensity (Sesar+, 2017)J/ApJ/872/58 : Sagittarius stream stars with APOGEE obs. (Hasselquist+, 2019)J/ApJ/874/138 : Gaia and LAMOST DR4 M giant members of Sgr stream (Li+, 2019)J/ApJ/880/65 : LAMOST K giants in Galactic halo substructures (Yang+, 2019)J/ApJS/244/8 : M-type stars in LAMOST DR5 (Zhong+, 2019)J/ApJ/889/63 : Properties of Sgr Stars (Hayes+, 2020)J/A+A/638/A104 : Gaia DR2 cand. RR Lyrae of Sgr stream & dwarf (Ramos+, 2020)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/886/154https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/886/154http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/886/154https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/886/154https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/886/154http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/886/154GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/886/154/stars (Parameters (Table 1) and orbital parameters (Table 2) of Sgr stream stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/886/154/stars?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/886/154/stars?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/886/154/stars?GETtext/xml+votable180.050000true43.84213-1.18450.0055555555555555564/1110 1117 5/1 5 7-8 12 16 32 49 55 97 1110 1116 1284 1293 1299 4337 4378-4379 4412 4414 4438 4444 4446-4447 4453-4454 4460 4464-4465 4478 4501 4507 4561 5796 5801 5816 6515 6549 6559 6581 6594 6633-6634 6636 6639 6642 6928 6933 6958-6959 6961-6964 6966 6968 6976 6979 6985 7001 7004 7045 7047 7053 7064 7066-7067 7072 7074 7089 9195 9215 6/1-3 10 13-17 19 24 26-27 36-37 39 42-43 45-46 52-54 56-57 59-61 63 70-73 75-77 79 82 88 90 97 99-100 102 106 111-112 133 137-138 142-144 146-147 149-151 158 160-161 170 173 177-178 180-181 183 185 187 189-192 195 205-208 210-211 214 218-219 232-233 235 244 246 249 260 272 279-282 287 292 295 305 311 315 317-318 321-322 328 331 340 350 353 360 362 371 395 397-400 402 405-408 410 412-413 416-418 420-422 426 432 434 436 438-439 449-450 460 464 478 486 498 513 517 528 531-532 544 552 576-577 601 607 612 624 714 722-723 769 790 838 904 917 1025 1034 1044 1056 1160-1161 2615 4225 4339-4340 4348-4350 4373 4382 4391 4395 4397-4399 4403 4405 4411-4412 4415 4422-4424 4429 4433-4436 4446-4448 4453-4455 4457 4468 4471 4473-4474 4478-4479 4489-4490 4497-4498 4505 4507-4508 4510-4511 4513-4514 4516 4519 4522 4528-4529 4532 4535 4537 4540 4544 4551 4553 4555 4558 4567 4572 4574-4575 4578 4582 4585 4593 4598-4600 4604-4606 4625 4627 4636 4638-4639 4658-4659 4663 4670-4671 4680 4684 4693-4694 4696-4697 4699-4702 4704 4709-4712 4714 4717-4718 4720-4721 4725-4727 4731 4734 4745 4752 4754-4755 4757 4759-4760 4764 4768 4779 4781 4783-4784 4788 4790-4791 4795 4799-4802 4806 4809-4810 4820 4833 4837 4848-4849 4866 4868 4870 4885-4887 4900-4901 4904 4916 4936 4939-4940 4943 4948-4949 4954 4959 4964 4973 4976 4986 4992 4997 4999 5003-5005 5008 5014 5016 5023-5024 5026 5033 5037 5044 5048 5051 5055 5074 5084 5093 5098 5120 5125 5127 5130 5132-5133 5140 5143-5145 5147 5157 5159 5161 5166 5169 5176-5178 5180 5182-5183 5185 5187 5190-5191 5193 5200 5202-5203 5208-5209 5213 5215-5216 5218 5220 5223 5225 5229 5232 5235 5247-5249 5251 5253 5255 5258 5260-5261 5265-5266 5268-5269 5272 5274 5277 5280-5282 5284 5296-5297 5304 5313-5314 5320 5329 5344 5354 5363 5387 5408 5500 5554 5634-5635 5639 5643-5644 5656 5667 5672 5677 6157 6161 6167 6172 6176 6183 6193 6208 6212 6215 6218 6221 6224 6246 6266 6282 6284 6287 6302 6304-6305 6308 6310-6311 6324 6337 6345 6348 6350-6351 6354 6369 6383 6389 6419 6427 6470 6536 6539 8192 8194-8195 8199 8201-8202 8204 8216-8218 8220 8225-8229 8232 8243 8260 8331 8341 8356 8360 8362-8363 8386 8682 8700 8728 8740 8834 8843 8864-8865 8874 8915 8956 8958 9007 9120 10251 10265 10277 10285 10330 10767 16795 16797-16799 16817 16821 17229 17231 17233-17234 17238 17240 17242-17244 17252-17253 17255 17257 17262 17274 17287 17293-17295 17298-17299 17304-17306 17308 17313 17318-17319 17324 17328 17362 17368 17370-17371 17393 17470 17505 17507-17508 17510 17549-17551 17554-17555 17558 17560 17563 17566 17572-17573 17575 17584-17586 17601 17638-17639 17644-17645 17647 17652 17654-17655 17660 17662-17663 17665 17668 17717 17719 17725 17727 17731 17735-17736 17738-17739 17742-17745 17747 17749-17751 17757-17759 17781-17783 17805 17809-17811 17822-17823 17825-17830 17832 17834 17836-17837 17844 17847-17848 17851 17853-17854 17864-17865 17888-17889 17892-17893 17896 17900-17901 17903 17905-17907 17909-17910 17981 17998 18000 18003 18008 18010-18013 18015 18017-18022 18026 18032 18040 18042 18061 18065 18068 18071 18073 18078 18085 18111-18113 18125 18127 18132 18140 18159 18176 18178 18182-18183 18185 18187-18190 18193 18198 18201 18205 18208 18210 18212-18214 18216 18218 18220 18222-18224 18226 18230 18232-18234 18237 18240 18248-18250 18252 18256-18258 18260 18262 18264 18266 18276 18289 18295 18301 18305 18307 18311-18312 18316-18318 18320-18321 18325 18328 18336-18337 18340 18390-18391 18767 18776 18782 18859 19164 19172 19176 19202 19436 19457 19525 19616 19874 22489 22521 22526 22717 22742 23049 23052 23056 23058 23060-23061 23102 23104 23109 23144 23158 23163 23174-23175 23179 23182-23183 23189-23191 23195-23196 23199-23202 23208 23210-23214 23216-23217 23220 23222 23225-23226 23228-23229 23231-23232 23236 23245 23255-23256 23259 23268 23272-23274 23276 23281-23282 23284 23287 23289-23291 23293-23294 23317 23323 23327 23330 23342-23343 23354-23355 23357 23393 23400 23402 23404-23405 23418 23432-23433 23435 23441 23451 23453 23467 23470 23489 23495 23499 23501 23508 23510-23511 23515 23517 23520-23521 23528-23529 23535 23541 23543 23546 23549 23871 23883 23903 23924 24031 24043 24089 24091 24099 24101 24106-24108 24118-24119 24160 24192 24194-24196 24200 24204 24206 24216 24218 24221 24224-24225 24228 24232 24234-24235 24239 24241 24244 24250 24267 24288-24289 24410 24432 25578 25582 25849 25882 25901 25904 25937-25940 25942-25945 25947 25949-25950 25955 25971 25973 25979 25981 25985-25986 25991-25992 26004 26009 26011-26012 26014 26016 26018 26023-26024 26027 26029 26034 26040 26044-26046 26052 26059 26065 26067 26071 26073 26081 26084 26092 26102-26103 26105 26107 26109 26111 26169 26171-26172 26185 26189 26191 26193 26202-26206 26213-26214 26224 26230-26232 26234-26235 26240 26259-26260 26262 26269 26274 26277-26278 26282-26283 26285-26286 26289 26292 26296 26300 26305 26307 26309 26311 26315-26317 26319 26322 26328 26333 26338 26343 26345-26348 26350 26352 26365 26372-26373 26382-26385 26394 26398-26399 26401-26402 26404-26405 26407 26409 26411-26412 26416 26422-26423 26425 26429-26431 26433 26436 26438-26442 26448 26450 26452 26456 26458 26465-26468 26472-26473 26475-26477 26481 26489 26491 26494 26497-26498 26501-26505 26509 26511 26513-26516 26522 26524-26525 26527 26529-26531 26540-26542 26548-26549 26552 26555 26560-26561 26566 26572 26575-26576 26579 26589-26590 26592 26600-26601 26603 26606 26611-26612 26614 26616 26618 26620 26916 26930 26959 27004 27045 27098 27127 27135 27471 27482 27501 27508-27510 27515 27546 27571 27576-27577 27579 27581-27583 27586 27589 27592 27607 27610 27612-27613 27615 27628 27632-27634 27637-27638 27641-27645 27647 27649 27660 27662-27663 27669 27677 27681 27684-27685 27687 27692-27693 27695-27696 27698 27701 27703-27706 27710 27720 27729-27730 27739-27741 27743 27749-27750 27753 27755 27758-27759 27762 27765 27767 27770 27780-27782 27786 27806-27807 27810-27811 27814 27819-27820 27822 27826 27829-27831 27841 27843 27861 27863 27869-27870 27877 27879-27880 27882 27891-27893 27901 27909 27911-27914 27922-27923 27927-27928 27930 27933-27934 27937-27939 27945 27947-27948 27950-27954 27957 27959-27960 27963-27964 27967-27968 27975 27977-27978 27981 27983 27986 27991-27992 27994 28001-28002 28012-28013 28021 28033-28035 28037 28040-28041 28043-28044 28046-28047 28053 28060-28061 28065-28070 28073-28078 28081-28082 28090 28092-28094 28096-28098 28101 28112 28122 28130 28135 28141 28157 28160 28162 28170 28176-28177 28187 28193 28196 28201-28203 28205-28206 28209 28216 28220-28221 28223-28224 28227 28232 28234 28244 28246 28249 28251-28253 28255 28261-28263 28272-28273 28275 28280-28282 28285-28286 28292-28293 28300-28301 28303 28305 28307 28310-28312 28315-28318 28321-28322 28326 28330 28333 28335 28338 28340 28345-28347 28349-28353 28360 28369-28371 28378 28382-28383 28386-28387 28391 28393-28397 28399 28401-28402 28404-28405 28409 28413 28416-28417 28420 28426-28427 28430 28432 28438 28445 28448 28450 28452 28459 28461 28468 28472 28481 28490-28491 28507 28513-28514 28518 28520 28531 28544 28547 28550-28551 28555 28558-28559 28570 28577 28579 28584 28592 28598 28603 31254 31311 31403 31406 31651 31903 36718-36719 36723 36731 36778-36779 36786 36792 36804-36805 36811 36817 36845 36847 36851 36855-36856 45039 45041 45045 45047 45054-45055https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/886/154?format=asciiOpticaldefaultJ/ApJ/886/154/starsParameters (Table 1) and orbital parameters (Table 2) of Sgr stream starsE[-119656/-2024] Energykm**2.s**-2phys.energydoublerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIDUnique identifier in LAMOST (ObsID) or SDSS (objID) if recno>1817meta.id;meta.mainGaiaSolution identifier in Gaia DR2 (Source)meta.id.crossTypeType (1)meta.code.classcharRAJ2000Right Ascension (J2000)degpos.eq.ra;meta.mainDEJ2000[-18.71/45.38] Declination (J2000)degpos.eq.dec;meta.mainDist[3.4/105.7] Distance (2)kpcpos.distance;pos.heliocentricfloate_Dist[0.2/23.5] Uncertainty in Distkpcstat.errorfloatHRV[-306.1/328.1] Heliocentric radial velocity (3)km/sspect.dopplerVeloc;pos.heliocentricfloate_HRV[0/88.4] Uncertainty in HRVkm/sstat.errorfloatpmRA[-7.4/3.1] Gaia DR2 proper motion along RAmas/yrpos.pm;pos.eq.rafloate_pmRA[0.02/1.1] Uncertainty in pmRAmas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-12.6/0.42] Gaia DR2 proper motion along DECmas/yrpos.pm;pos.eq.decfloate_pmDE[0.02/1.2] Uncertainty in pmDEmas/yrstat.error;pos.pm;pos.eq.decfloat[Fe/H][-3.5/1]? Metallicity (4)phys.abund.Zfloatnullablee_[Fe/H][0.03/0.3]? Uncertainty in fehstat.error;phys.abund.Fefloatnullable[a/Fe][-0.4/0.7]? Alpha-element abundancephys.abundfloatnullablee_[a/Fe][0.02/0.08]? Uncertainty in [a/Fe]stat.error;phys.abundfloatnullablee[0.06/1] Integrals-of-Motion eccentricitysrc.orbital.eccentricityfloate_e[0/0.35] Uncertainty in estat.errorfloata[6.4/5032] Integrals-of-Motion semimajor axiskpcphys.angSize.smajAxis;src.orbitalfloate_a[0.1/2452] Uncertainty in akpcstat.errorfloatl-orb[2.8/359.3] Integrals-of-Motion direction of the orbital pole, galactic longitudedegpos.galactic.lon;src.orbitalfloate_l-orb[0.3/161] Uncertainty in l-orbitdegstat.errorfloatb-orb[8.8/160] Integrals-of-Motion direction of the orbital pole, galactic latitudedegpos.galactic.latfloate_b-orb[0.1/51] Uncertainty in b-orbitdegstat.errorfloatlapo[0.8/360] Integrals-of-Motion, angle between apocenter and the projection of X-axis on the orbital planedegsrc.orbitalfloate_lapo[1.6/163] Uncertainty in lapodegstat.errorfloate_E[732/132671] Uncertainty in Ekm**2.s**-2stat.errordoubleL[240/23095] Angular momentumkpc.km/sphys.angMomentumdoublee_L[26/18455] Uncertainty in Lkpc.km/sstat.errordoubleSCatDisplay data from Xue+, 2011, J/ApJ/738/79 ; Zhong+, 2019, J/ApJS/244/8 ; Li+, 2016, J/ApJ/823/59 and Xue+, 2014, J/ApJ/784/170 within 2"meta.ref.urlintnullableSloanDisplay the online SDSS-DR14 data for the nearest objectmeta.ref.urlchar