J/AJ/158/223ivo://CDS.VizieR/J/AJ/158/223doi:10.26093/cds/vizier.51580223CDSPrice-Whelan A.M.Mateu C.Iorio G.Pearson S.Bonaca A.Belokurov V.2021-08-10T11:30:31Z2020-02-06T12:33:22ZCDS support team

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

cds-question@unistra.frmilky-way-galaxyglobular-star-clustersvariable-starsvisible-astronomytrigonometric-parallaxproper-motionsinfrared-photometrybroad-band-photometrystellar-distanceThin stellar streams, formed from the tidal disruption of globular clusters, are important gravitational tools, sensitive to both global and small-scale properties of dark matter. The Palomar 5 stellar stream (Pal 5) is an exemplar stream within the Milky Way: its ~20{deg} tidal tails connect back to the progenitor cluster, and the stream has been used to study the shape, total mass, and substructure fraction of the dark matter distribution of the Galaxy. However, most details of the phase-space distribution of the stream are not fully explained, and dynamical models that use the stream for other inferences are therefore incomplete. Here we aim to measure distance and kinematic properties along the Pal 5 stream in order to motivate improved models of the system. We use a large catalog of RR Lyrae-type stars (RRLs) with astrometric data from the Gaia mission to probabilistically identify RRLs in the Pal 5 stream. RRLs are useful because they are intrinsically luminous standard candles and their distances can be inferred with small relative precision (~3%). By building a probabilistic model of the Pal 5 cluster and stream in proper motion and distance, we find 27 RRLs consistent with being members of the cluster (10) and stream (17). Using these RRLs, we detect gradients in distance and proper motion along the stream, and provide an updated measurement of the distance to the Pal 5 cluster using the RRLs, d=20.6+/-0.2 kpc. We provide a catalog of Pal 5 RRLs with inferred membership probabilities for future modeling work.2019AJ....158..223Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/223CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/349 : The Pan-STARRS release 1 (PS1) Survey - DR1 (Chambers+, 2016)I/345 : Gaia DR2 (Gaia Collaboration, 2018)J/ApJ/817/73 : QSOs and RR Lyrae in Pan-STARRS1 3{pi} Data (Hernitschek+ 2016)J/ApJ/823/157 : LOS velocities + [Fe/H] of Pal 5 tidal stream (Ishigaki+, 2016)J/AJ/153/204 : RR Lyrae stars from the PS1 3{pi} survey (Sesar+, 2017)J/ApJ/842/120 : Large spectrosc. survey of Palomar 5 stellar streamJ/ApJ/844/L4 : PS1 RRab stars for tracing outer Virgo overdensityhttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/223https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/223http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/223https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/158/223https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/158/223http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/158/223GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/158/223/table2 (RRL members of the Pal 5 stream)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/158/223/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/223/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/223/table2?GETtext/xml+votable180.050000true229.03957529805-0.273152598090.0055555555555555564/1620 1923 1926 1927 1929 1931 1933 1934 1935 1944 1961 1962 1968 1970 2783 2803 2804 2812 5/2048 2050 2054 2057 2080 2082 2083 6471 6486 6487 6488 6489 6491 6492 6493 6495 6517 6519 7354 7685 7686 7687 7690 7691 7696 7698 7699 7712 7713 7714 7720 7721 7723 7728 7729 7730 7754 7782 7784 7786 7787 7788 7790 7791 7802 7808 7809 7810 7814 7815 7816 7817 7818 7820 7821 7823 7824 7825 7827 7829 7832 7833 7835 7837 7840 7841 7842 7853 7855 7858 7860 7861 7863 7864 7866 7868 7876 7877 7878 7884 7885 7887 7888 7890 7891 7894 7896 7904 7909 11125 11127 11129 11130 11131 11189 11190 11191 11206 11207 11211 11220 11221 11222 11224 11228 11230 11231 11233 11235 11237 11238 11239 11241 11243 11245 11247 11252 11255 11256 11257 11258 11260 11261 11262 6/8197 8198 8199 8204 8206 8207 8208 8209 8210 8214 8215 8221 8222 8223 8224 8225 8226 8232 8233 8235 8236 8237 8239 8242 8243 8246 8247 8248 8249 8250 8252 8253 8254 8256 8260 8262 8264 8266 8267 8268 8269 8272 8273 8276 8277 8280 8281 8282 8288 8289 8290 8292 8293 8294 8296 8297 8298 8300 8326 8327 8336 8339 8340 8341 8342 8344 8345 8346 8348 8352 8354 8358 8360 8361 8363 25860 25861 25863 25872 25873 25874 25877 25878 25879 25880 25881 25883 25908 25911 25939 25941 25942 25943 25960 25961 25963 25976 25979 26052 26053 26055 26064 26065 26066 26073 26100 26101 26103 29375 29422 30735 30755 30757 30758 30759 30788 30790 30791 30802 30808 30810 30811 30860 30861 30863 30888 30890 30891 30924 30925 30927 31010 31022 31122 31134 31140 31141 31143 31156 31158 31159 31214 31244 31245 31246 31248 31251 31253 31255 31276 31278 31279 31288 31290 31291 31304 31305 31312 31313 31314 31320 31321 31322 31325 31326 31327 31336 31338 31339 31345 31346 31347 31352 31354 31355 31356 31357 31358 31372 31374 31375 31408 31409 31411 31416 31418 31419 31424 31425 31426 31428 31429 31431 31436 31439 31448 31449 31450 31460 31462 31463 31468 31469 31470 31476 31477 31479 31481 31485 31486 31487 31516 31517 31519 31545 31546 31547 31556 31558 31559 31570 31588 31590 31592 31593 31594 31596 31620 31621 31623 31624 31625 31627 31628 31629 31631 31633 31634 31635 31641 31642 31648 31649 31651 31652 31653 31654 31656 31658 31659 44415 44479 44495 44499 44505 44506 44507 44671 44788 44789 44791 44819 44821 44822 44823 44835 44836 44837 44839 44840 44892 44893 44895 44900 44901 44902 44904 44905 44906 44908 44910 44911 44916 44917 44919 44928 44929 44931 44937 44938 44939 44945 44946 44947 44960 44961 44962 44969 44971 44976 44978 44979 44984 44985 44986 45012 45013 45017 45018 45019 45037 45038 45039 45052 45053 45054https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/158/223?format=asciiOpticalInfrareddefaultJ/AJ/158/223/table2RRL members of the Pal 5 streamTr[0/119] Best-fit r band template ID number (Tr)meta.idintrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSolIDSolution Identifier in Gaia DR2 (Cat. I/345) (solution_id)meta.softwareDR2NameUnique source designation (Gaia DR2 NNNNNNNNNNNNNNNNNNN) (designation)meta.idcharRA_ICRSGaia DR2 barycentric right ascension (ICRS) at Ep=2015.5 (ra)degpos.eq.ra;meta.maine_RA_ICRSStandard error of RAdeg (ra_error)masstat.error;pos.eq.rafloatDE_ICRSGaia DR2 barycentric declination (ICRS) at Ep=2015.5 (column added by the CDS)degpos.eq.dec;meta.maine_DE_ICRSStandard error of DEdeg (column added by the CDS)masstat.error;pos.eq.decfloatPlx[-3.7566/2.6275] Gaia DR2 parallax (parallax)maspos.parallaxfloate_Plx[0.022/2.387] Standard error of Plx (parallax_error)masstat.error;pos.parallaxfloatpmRA[-27.093/10.244] Gaia DR2 proper motion in right ascension direction (pmRA*cosDE) (pmra)mas/yrpos.pm;pos.eq.rafloate_pmRA[0.028/4.194] Standard error of pmRA (pmra_error)mas/yrstat.error;pos.pm;pos.eq.rafloatpmDE[-25.691/9.849] Gaia DR2 proper motion in declination direction (pmdec)mas/yrpos.pm;pos.eq.decfloate_pmDE[0.02/2.768] Standard error of pmDE (pmdec_error)mas/yrstat.error;pos.pm;pos.eq.decfloatID-PS1[19585/31485] PS1 identifier (Cat. II/349) (ID_PS1)meta.idintRAdegPPS1 Right Ascension in decimal degrees (J2000) (ra_ps1)degpos.eq.raDEdegPPS1 Declination in decimal degrees (J2000) (dec_ps1)degpos.eq.decS3ab[0/1] Final RRab classification score (S3ab)stat.fit.paramfloatS3c[0/1] Final RRc classification score (S3c)stat.fit.paramfloatDM[11.48/20.32] Distance modulus (DM)magphot.mag.distModfloatPer[0.200556/0.891909] Period (P)dtime.perioddoublephi0[-0.49993/0.49996] Phase offset {phi}_0_ (phi0)time.phasedoublegAmp[0.22/1.62] Amplitude in g band (Ag)magsrc.var.amplitudefloatrAmp[0.16/1.24] Amplitude in r band (Ar)magsrc.var.amplitudefloatiAmp[0.13/0.99] Amplitude in i band (Ai)magsrc.var.amplitudefloatzAmp[0.11/0.89] Amplitude in z band (Az)magsrc.var.amplitudefloatgmag[11.85/20.23] PS1 g band magnitude (gmag)magphot.mag;em.opt.Bfloatrmag[11.95/20.38] PS1 r band magnitude (rmag)magphot.mag;em.opt.Rfloatimag[12.04/20.44] PS1 i band magnitude (imag)magphot.mag;em.opt.Ifloatzmag[12.13/20.46] PS1 z band magnitude (zmag)magphot.mag;em.opt.IfloatTg[0/120] Best-fit g band template ID number (Tg)meta.idintTi[0/119] Best-fit i band template ID number (Ti)meta.idintTz[0/117] Best-fit z band template ID number (Tz)meta.idintgmagmean[12.13/20.99] Mean g band magnitude (gmean)magphot.mag;em.opt.Bfloatrmagmean[12.15/20.83] Mean r band magnitude (rmean)magphot.mag;em.opt.Rfloatimagmean[12.2/20.78] Mean i band magnitude (imean)magphot.mag;em.opt.Ifloatzmagmean[12.27/20.75] Mean z band magnitude (zmean)magphot.mag;em.opt.IfloatTypeRR Lyrae type (RRab or RRc) (PS1_type)meta.code;src.varcharDist[2.19309/116.054] Distance (D_ps1)kpcpos.distance;pos.heliocentricfloatMemb[0/1] Membership probability (member_prob)stat.fit.goodnessfloatTrack[0/1] Inside stream track (inside_stream_track)meta.codeintGaiaDR2Display data from Gaia DR2 (Cat. I/345)meta.ref.urlcharPS1Display the PS1 data (Cat. II/349) within 1"meta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_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.decnullableindexed