J/ApJ/784/170ivo://CDS.VizieR/J/ApJ/784/170doi:10.26093/cds/vizier.17840170CDSXue X.-X.Ma Z.Rix H.-W.Morrison H.L.Harding P.Beers T.C.,Ivans I.I.Jacobson H.R.Johnson J.Lee Y.S.Lucatello S.,Rockosi C.M.Sobeck J.S.Yanny B.Zhao G.Allende Prieto C.2017-08-29T15:24:44Z2016-08-05T12:38:00ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyhalo-starsk-starsgiant-starsmetallicityradial-velocitystellar-distancevisible-astronomysloan-photometryWe present an online catalog of distance determinations for 6036 K giants, most of which are members of the Milky Way's stellar halo. Their medium-resolution spectra from the Sloan Digital Sky Survey/Sloan Extension for Galactic Understanding and Exploration are used to derive metallicities and rough gravity estimates, along with radial velocities. Distance moduli are derived from a comparison of each star's apparent magnitude with the absolute magnitude of empirically calibrated color-luminosity fiducials, at the observed (g-r)_0_ color and spectroscopic [Fe/H]. We employ a probabilistic approach that makes it straightforward to properly propagate the errors in metallicities, magnitudes, and colors into distance uncertainties. We also fold in prior information about the giant-branch luminosity function and the different metallicity distributions of the SEGUE K-giant targeting sub-categories. We show that the metallicity prior plays a small role in the distance estimates, but that neglecting the luminosity prior could lead to a systematic distance modulus bias of up to 0.25mag, compared to the case of using the luminosity prior. We find a median distance precision of 16%, with distance estimates most precise for the least metal-poor stars near the tip of the red giant branch. The precision and accuracy of our distance estimates are validated with observations of globular and open clusters. The stars in our catalog are up to 125kpc from the Galactic center, with 283 stars beyond 50kpc, forming the largest available spectroscopic sample of distant tracers in the Galactic halo.2014ApJ...784..170Xhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/784/170CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/139 : The SDSS Photometric Catalog, Release 9 (Adelman-McCarthy+, 2012)VII/202 : Globular Clusters in the Milky Way (Harris, 1997)J/ApJ/738/79 : SDSS-DR8 BHB stars in the Milky Way's halo (Xue+, 2011)J/ApJ/731/4 : Galactic halo as seen by the CFHTLS (Sesar+, 2011)J/AJ/141/90 : SEGUE stellar parameter pipeline. V. (Lee+, 2011)J/AJ/141/89 : SEGUE stellar parameter pipeline. IV. (Smolinski+, 2011)J/AJ/137/4377 : List of SEGUE plate pairs (Yanny+, 2009)J/AJ/136/2070 : SEGUE stellar parameter pipeline. III. (Allende Prieto+, 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/AJ/125/2502 : Spectral indices of Galactic halo (Morrison+, 2003)J/AJ/100/1191 : Giants DDO photometry (Morrison+, 1990)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/784/170https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/784/170http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/784/170https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/784/170https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/784/170http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/784/170GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/784/170/table4 (List of 6036 K giants selected from SDSS DR9)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/784/170/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/784/170/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/784/170/table4?GETtext/xml+votable180.050000true154.7659-0.83540.0055555555555555565/12 97 99 181 227 516 1026 1027 1035 1041 1046 1099 1110 1126 1133 1135 1159 1168 1183 1188 1189 1199 1205 1237 1277 1294 1299 1300 1312 1313 1359 1381 1420 1435 1452 1555 1577 1598 1641 1812 1830 1831 1852 1939 1945 2065 2066 2085 2088 2090 2129 2167 2204 2280 2281 2289 2290 2324 2335 2343 2372 2408 2437 2459 2462 2465 2531 2569 2636 2644 2645 2654 2697 2728 2747 2762 2763 2784 2793 2817 2834 2835 2859 2860 2862 3074 3422 3730 3749 4308 4326 4329 4337 4379 4390 4437 4438 4441 4442 4453 4454 4457 4475 4476 4478 4558 4630 4694 4697 4713 4758 4817 4832 4834 4899 4921 4922 4939 5062 5071 5442 5590 5706 5764 5801 5802 6322 6333 6382 6422 6485 6528 6548 6549 6550 6566 6569 6570 6586 6633 6634 6745 6761 6765 6767 6770 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28186 28190 28191 28201 28202 28203 28206 28209 28224 28234 28246 28262 28263 28292 28294 28309 28346 28347 28352 28353 28416 28417 28459 28500 28501 28503 28512 28513 28514 28516 28518 28520 28521 28523 28524 28544 28545 28547 28548 28550 28551 28553 28554 28556 28558 28565 28576 28577 28580 28612 28661 28662 29780 30029 30031 30034 30035 30069 31221 31350 31351 31357 31358 31359 31402 31444 31445 31447 31453 31467 31470 31471 31528 31530 31531 31532 31534 31535 31601 31603 31606 31607 31608 31609 31616 31617 31618 31620 31621 31622 31625 31661 31726 31727 31884 31886 31908 31910 32156 32158 32159 32177 32179 32180 32181 32183 32202 32414 32415 32423 32429 32433 32434 32435 32458 32478 32479 32482 32488 32490 32506 32507 32519 32525 32527 32550 32551 32553 32554 32555 32556 32557 32558 32641 32650 32651 32672 32694 32698 32699 32700 32702 36717 36718 36719 36723 36728 36731 36774 36777 36778 36779 36786 36792 36794 36804 36817 36861 36862 36863 45054 45055 48857 48859 48860 48862 48879 48881 48882 48883 48884 48886 48892 48894 49009 49010 49011 49014 49017 49019 49020 49022 49055 49079 49085 49120 49122 49123 49126 49128 49129 49151https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/784/170?format=asciiOpticaldefaultJ/ApJ/784/170/table4List of 6036 K giants selected from SDSS DR9SimbadNameSimbad column added by the CDSmeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSDSSDisplay the photometric data from SDSS DR9 (cat. V/139)meta.ref.urlcharRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.mainrmag[13.8/19.6] Extinction-corrected r band magnitude (r_0_)magphot.mag;em.opt.Rfloate_rmag[0.037/0.053] Error in rmag ({Delta}r_0_) (1)magstat.error;phot.mag;em.opt.Rfloatg-r[0.5/1.3] The (g-r) color index after extinction correction (g-r)_0_magphot.color;em.opt.B;em.opt.Rfloate_g-r[0.018/0.044] Error in g-r ({Delta}(g-r)_0_) (1)magstat.error;phot.color;em.opt.BfloatHRV[-506.5/419.4] Heliocentic radial velocitykm/sspect.dopplerVelocfloate_HRV[0.5/15.1] Error in HRVkm/sstat.errorfloatTeff[4025/5691] Effective temperature (SSPP) (2)Kphys.temperature.effectiveint[Fe/H][-3.6/0.32] Metallicity (SSPP) (2)phys.abund.Zfloate_[Fe/H][0.1/0.23] Error in [Fe/H] (3)stat.error;phys.abund.Fefloatlogg[0.18/3.5] Log of the surface gravity (SSPP) (2)log(cm.s**-2)phys.gravityfloatDMpeak[13.1/20.4] Distance modulus at peak of distance modulus likelihood (DM_peak_) (4)magphot.mag.distModfloatDM05[12.2/20.3] Distance modulus at 5% confidence of distance modulus likelihood (DM_5%_) (4)magphot.mag.distModfloatDM16[12.6/20.3] Distance modulus at 16% confidence of distance modulus likelihood (DM_16%_) (4)magphot.mag.distModfloatDM50[13/20.4] Distance modulus at 50% confidence of distance modulus likelihood (DM_50%_) (4)magphot.mag.distModfloatDM84[13.5/20.5] Distance modulus at 84% confidence of distance modulus likelihood (DM_84%_) (4)magphot.mag.distModfloatDM95[13.7/20.6] Distance modulus at 95% confidence of distance modulus likelihood (DM_95%_) (4)magphot.mag.distModfloateDM[0.05/0.76] Error in distance modulus estimate ({Delta}DM) (5)magstat.errorfloatrMag[-3.2/1.2] Absolute magnitude in r band (M_r_) (6)magphys.magAbsfloate_rMag[0.07/0.8] Error in rMag ({Delta}M_r_)magstat.error;phot.magfloatDist[4.2/120.3] Distance to Sun (d) (6)kpcpos.distance;pos.heliocentricfloate_Dist[0.5/16.6] Error in Dist ({Delta}d)kpcstat.errorfloatRgc[4.79/125.1] Distance to Galactic center (r_GC_) (6)kpcpos.distancefloate_Rgc[0/16.47] Error in Rgc ({Delta}r_GC_)kpcstat.errorfloatpRGB[0.45/1] Chance of being clearly on the Red-Giant Branch (RGB), above the level of the Horizontal Branch (HB) (P_aboveHB_) (7)stat.fit.goodnessfloatSloanDisplay the online SDSS data for the nearest objectmeta.ref.urlcharJ/ApJ/784/170/table2Interpolated fiducialrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintg-r[0.3/1.4] Extinction-corrected color index (g-r)_0_magphot.color;em.opt.B;em.opt.RfloatrMag[-3.4/3] Absolute magnitude in r band (M_r_)magphys.magAbsfloat[Fe/H][-2.4/0.4] Metallicityphys.abund.Zfloat