J/ApJS/249/23ivo://CDS.VizieR/J/ApJS/249/23doi:10.26093/cds/vizier.22490023CDSClemens D.P.Cashman L.R.Cerny C.El-Batal A.M.Jameson K.E.,Marchwinski R.Montgomery J.Pavel M.Pinnick A.Taylor B.W.2020-11-30T08:33:00Z2020-09-14T11:43:38ZCDS support team

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

cds-question@unistra.frsurveysgalactic-centerpolarimetryinfrared-astronomyThe Galactic Plane Infrared Polarization Survey (GPIPS) seeks to characterize the magnetic field in the dusty Galactic disk using near-infrared stellar polarimetry. All GPIPS observations were completed using the 1.83m Perkins telescope and Mimir instrument. GPIPS observations surveyed 76 deg^2^ of the northern Galactic plane, from Galactic longitudes 18{deg}-56{deg} and latitudes -1{deg} to +1{deg}, in the H band (1.6 {mu}m). Surveyed stars span 7th-16th mag, resulting in nearly 10 million stars with measured linear polarizations. Of these stars, ones with m_H_<12.5mag and polarization percentage uncertainties under 2% were judged to be high quality and number over one million. GPIPS data reveal plane-of-sky magnetic field orientations for numerous interstellar clouds for A_V_ values to ~30mag. The average sky separation of stars with m_H_<12.5mag is about 30'', or about 60 per Planck polarization resolution element. Matching to Gaia DR2 showed the brightest GPIPS stars are red giants with distances in the 0.6-7.5kpc range. Polarization orientations are mostly parallel to the Galactic disk, with some zones showing significant orientation departures. Changes in orientations are stronger as a function of Galactic longitude than of latitude. Considered at 10' angular scales, directions that show the greatest polarization fractions and narrowest polarization position angle distributions are confined to about 10 large, coherent structures that are not correlated with star-forming clouds. The GPIPS polarimetric and photometric data products (Data Release 4 catalogs and images) are publicly available for over 13 million stars.2020ApJS..249...23Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/249/23CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-tohttps://sites.bu.edu/gpips/fov-based-dr4-data-products : GPIPS Home pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/249/23https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/249/23http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/249/23https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/249/23https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/249/23http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/249/23GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJS/249/23/tablea1 (GPIPS field properties summary table)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/249/23/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/249/23/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/249/23/tablea1?GETtext/xml+votable180.050000true276.54276-13.481580.005555555555555556Cone search capability for table J/ApJS/249/23/catalog (GPIPS DR4 unique star data file)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJS/249/23/catalog?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJS/249/23/catalog?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJS/249/23/catalog?GETtext/xml+votable180.050000true275.10014-12.74830.0055555555555555565/3242 7377 7382 7383 7554 7561 7564 7565 7567 7578 7579 7604 7605 7648 7650 7651 7654 7661 7672 7673 7678 7679 6/14336 14337 29163 29166 29505 29506 29507 29513 29516 29517 29520 29522 29523 29526 29527 29556 29557 30220 30222 30223 30234 30240 30241 30243 30264 30265 30306 30307 30328 30330 30331 30334 30401 30404 30405 30407 30428 30429 30598 30599 30610 30620 30622 30623 30629 30640 30641 30666 30667 30696 30697 30700 30701 30703 30704 30706 30707 30710 30711 32084 320858.157980699529898e-21 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJS/249/23?format=asciiInfrareddefaultJ/ApJS/249/23/tablea1GPIPS field properties summary tablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintGPFOV[1/3237] GPIPS FOV serial numberobs.fieldintGLONFOV center Galactic Longitudedegpos.galactic.lonGLATFOV center Galactic Latitudedegpos.galactic.latCenOffRadial Offset from ideal GPIPS grid centerarcsecpos;arith.difffloatNightDate of Observation (UT Night)time.epochnullableImage0First image of Observationobs.imageintFWHMFull-width at half-maximum of mean stellar profilearcsecphys.angSizefloatSAmpSlow variation of sky transmission (Secular Amplitude)%arith.ratefloatSkyNoiseFast variation of sky transmission%arith.ratefloatNrejectImage rejection countmeta.numberintNgoodImage acceptance countmeta.numberintPScorePolarization Pattern Evaluation Score (Pattern Score)stat.fit.goodnessintQCflag[0/4] Overall quality control flag (1)meta.code.qualintNphotNumber of photometric sources in the Fieldmeta.numberintNpolNumber of polarimetric sources in the Fieldmeta.numberint_RA.icrsRight ascension (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.ranullableindexed_DE.icrsDeclination (ICRS) (computed by VizieR, not part of the original data. The format may include more digits than the original data because of internal accuracy requirements in VizieR and across other CDS services)degpos.eq.decnullableindexedJ/ApJS/249/23/catalogGPIPS DR4 unique star data fileW1mag? WISE W1 magnitude (W1MAG)magphot.mag;em.IR.3-4umfloatnullablee_W1mag? WISE W1 magnitude error (E_W1MAG)magstat.error;phot.magfloatnullableW2mag? WISE W2 magnitude (W2MAG)magphot.mag;em.IR.4-8umfloatnullablee_W2mag? WISE W2 magnitude error (E_W2MAG)magstat.error;phot.magfloatnullableW3mag? WISE W3 magnitude (W3MAG)magphot.flux.density;em.IR.8-15umfloatnullablee_W3mag? WISE W3 magnitude error (E_W3MAG)magstat.error;phot.magfloatnullableW4mag? WISE W4 magnitude (W4MAG)magphot.flux.density;em.IR.15-30umfloatnullablee_W4mag? WISE W4 magnitude error (E_W4MAG)magstat.error;phot.magfloatnullableJ2mag? 2MASS J magnitude (J_2MASS)magphot.mag;em.IR.JfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSeqSequential number (R.A.-ordered) (NUM)meta.recordintGPIPSGPIPS designation, GPIPS_JHHMMSS.ss+DDMMSS.s (DESIG_GPIPS)meta.id;meta.maincharRAJ2000GPIPS right ascension (J2000) (RA_DEG)degpos.eq.ra;meta.mainindexedDEJ2000GPIPS declination (J2000) (DEC_DEG)degpos.eq.dec;meta.mainindexedGLONGPIPS Galactic longitude (GAL_L)degpos.galactic.lonGLATGPIPS Galactic latitude (GAL_B)degpos.galactic.latdoubleGPSTARFOVx10^5^ + stellar ID No (GPSTAR) (1)meta.idcharindexedCAT-FLAGArray of archive catalog match codes (CAT_FLAG) (2)meta.codecharHmagGPIPS Mimir H magnitude (H_MAG)magphot.mag;em.IR.Hfloate_HmagGPIPS Mimir H magnitude error (SHMAG)magstat.error;phot.magfloatsPhotGPIPS external H-band magnitude uncertainty (see Clemens et al. 2012ApJS..200...21C) (SPHOT)stat.errorfloatHvar[0/1] Variability flag for overlapping FOVs (see text) (H_VAR)meta.code;src.varintPol? GPIPS debiased polarisation percentage (P)%phys.polarizationfloatnullablee_Pol? GPIPS debiased polarisation percentage error (SP)%stat.errorfloatnullableEPA? GPIPS polarisation position angle (EPA) E of N (PA_DEG)degpos.posAngfloatnullableGPA? GPIPS Galactic polarisation position angle (GPA) (+GLON from +GLAT) (GPA_DEG)degpos.posAng;pos.galacticfloatnullablee_PA? GPIPS polarisation position angles error (SPA)degstat.errorfloatnullableQ? GPIPS Q Stokes parameter normalized by Stokes I (Q)%phys.polarization.stokes;arith.ratiofloatnullablee_Q? GPIPS Q Stokes parameter error (SQ)%stat.errorfloatnullableU? GPIPS U Stokes parameter normalized by Stokes I (U)%phys.polarization.stokes;arith.ratiofloatnullablee_U? GPIPS U Stokes parameter error (SU)%stat.error;pos.cartesian.xfloatnullablenHWPNumber of HWP images in which the star appears (NHWP)meta.numberintUF[1/99]? Usage Flag (UF) (1)meta.codeintnullableGaiaDR2Gaiai DR2 designation, GAIA_DR2_NNNNNNNNNNNNNNNNNNN (DESIG_GAIA)meta.idchar2MASS2MASS designation, JHHMMSSss+DDMMSS or _none_ (DESIG_2MASS)meta.idcharGLIMPSEGLIMPSE designation, GLLL.llll+BB.bbbb (DESIG_GLIMPSE)meta.idcharWISEWISE designation (DESIG_WISE)meta.idcharPlx? Gaia DR2 parallax (PAR)maspos.parallaxfloatnullablee_Plx? Gaia DR2 parallax error (PARERR)masstat.error;pos.parallaxfloatnullableGmag? Gaia DR2 G magnitude (GMAG)magphot.mag;em.optfloatnullablee_Gmag? Gaia DR2 G magnitude error (GMAGERR)magstat.error;phot.magdoublenullablepmRA? Gaia DR2 proper motion along RA, pmRA*cosDE (PMRA)mas/yrpos.pm;pos.eq.radoublenullablee_pmRA? Gaia DR2 proper motion along RA error (PMRAERR)mas/yrstat.error;pos.pm;pos.eq.rafloatnullablepmDE? Gaia DR2 proper motion along DE (PMDEC)mas/yrpos.pm;pos.eq.decdoublenullablee_pmDE? Gaia DR2 proper motion along DE error (PMDECERR)mas/yrstat.error;pos.pm;pos.eq.decfloatnullablee_J2mag? 2MASS J magnitude error (SJ2MASS)magstat.error;phot.magfloatnullableH2mag? 2MASS H magnitude (H_2MASS)magphot.mag;em.IR.Hfloatnullablee_H2mag? 2MASS H magnitude error (SH2MASS)magstat.error;phot.magfloatnullableKs2mag? 2MASS Ks magnitude (K_2MASS)magphot.mag;em.IR.Kfloatnullablee_Ks2mag? 2MASS Ks magnitude error (SK2MASS)magstat.error;phot.magfloatnullable3.6mag? GLIMPSE IRAC 3.6um magnitude (B36MAG)magphot.mag;em.IR.3-4umfloatnullablee_3.6mag? GLIMPSE IRAC 3.6um magnitude error (E_B36MAG)magstat.errorfloatnullable4.5mag? GLIMPSE IRAC 4.5um magnitude (B45MAG)magphot.mag;em.IR.4-8umfloatnullablee_4.5mag? GLIMPSE IRAC 4.5um magnitude error (E_B45MAG)magstat.errorfloatnullable5.8mag? GLIMPSE IRAC 5.8um magnitude (B58MAG)magphot.flux.density;em.IR.4-8umfloatnullablee_5.8mag? GLIMPSE IRAC 5.8um magnitude error (E_B58MAG)magstat.errorfloatnullable8.0mag? GLIMPSE IRAC 8.0um magnitude (B80MAG)magphot.flux.density;em.IR.8-15umfloatnullablee_8.0mag? GLIMPSE IRAC 8.0um magnitude error (E_B80MAG)magstat.errorfloatnullable