J/ApJ/842/120ivo://CDS.VizieR/J/ApJ/842/120doi:10.26093/cds/vizier.18420120CDSIbata R.A.Lewis G.F.Thomas G.Martin N.F.Chapman S.2020-05-04T06:42:50Z2018-02-06T16:16:46ZCDS support team

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

cds-question@unistra.frglobular-star-clustersradial-velocityinfrared-astronomyspectroscopyinfrared-photometryvisible-astronomybroad-band-photometryWe present two spectroscopic surveys of the tidal stellar stream of the Palomar 5 globular cluster undertaken with the VLT/FLAMES and AAT/AAOmega instruments. We use these data in conjunction with photometric data presented in the previous contribution in this series to classify the survey stars in terms of their probability of belonging to the Palomar 5 stellar stream. We find that high-probability candidates are only found in a very narrow spatial interval surrounding the locus of the stream on the sky. PanSTARRS RRLyrae stars in this region of the sky are also distributed in a similar manner. The absence of significant "fanning" of this stellar stream confirms that Palomar 5 does not follow a chaotic orbit. Previous studies have found that Palomar 5 is largely devoid of low-mass stars, and we show that this is true also of the stellar populations along the trailing arm out to 6{deg}. Within this region, which contains 73% of the detected stars, the population is statistically identical to the core, implying that the ejection of the low-mass stars occurred before the formation of the stream. We also present an updated structural model fit to the bound remnant, which yields a total mass of 4297+/-98M_{sun}_ and a tidal radius 0.145+/-0.009kpc. We estimate the mass of the observed system including the stream to be 12200+/-400M_{sun}_, and the initial mass to have been ~47000+/-1500M_{sun}_.2017ApJ...842..120Ihttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/842/120CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toV/147 : The SDSS Photometric Catalogue, Release 12 (Alam+, 2015)J/MNRAS/365/1357 : Absolute mag. of Globular Cluster (Di Criscienzo+, 2006)J/ApJ/738/186 : HST and DEIMOS measurements of NGC 2419 stars (Ibata+, 2011)J/ApJ/776/26 : RRab stars in the Orphan stream distances (Sesar+, 2013)J/ApJ/817/73 : QSOs & RRL* in Pan-STARRS1 3{pi} Data (Hernitschek+ 2016)J/ApJ/819/1 : Wide-field photometry of the GC Palomar 5 (Ibata+, 2016)J/ApJ/823/157 : LOS vel. & [Fe/H] of Pal 5 tidal stream (Ishigaki+, 2016)J/A+A/601/A41 : Palomar 5 abundance analysis (Koch+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/842/120https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/842/120http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/842/120https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/842/120https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/842/120http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/842/120GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/842/120/table2 (Kinematic catalog)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/842/120/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/842/120/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/842/120/table2?GETtext/xml+votable180.050000true225.8655125-3.423194440.0055555555555555566/31392 31393 31394 31396 31398 31399 31409 31410 31411 31412 31413 31414 31439 31450 31451 31453 31456 31457 31460 31619 45041 45044 45045https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/842/120?format=asciiOpticalInfrareddefaultJ/ApJ/842/120/table2Kinematic catalogrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintRAJ2000Hour of Right Ascension (J2000)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000)pos.eq.dec;meta.maing0mag[15.7/19.8] CFHT/MegaCam g magnitude, extinction corrected; as in Paper I (Ibata+, 2016, J/ApJ/819/1)magphot.mag;em.opt.Bfloat(g-r)0[0.4/0.8] g-r color index, extinction correctedmagphot.color;em.opt.B;em.opt.RfloatHRV[-282/250] Heliocentric radial velocitykm/sspect.dopplerVeloc;pos.heliocentricfloate_HRV[0.5/5] Uncertainty in HRVkm/sstat.errorfloatPMemb[0.2/1] Membership probability (1)stat.probabilityfloatInstInstrument flag (F=VLT/FLAMES; A=AAT/AAOmega)meta.code.error;instrcharPapIDisplay data from Paper I (Ibata+, 2016, J/ApJ/819/1) within 0.3"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar