II/321ivo://CDS.VizieR/II/321CDSBarentsen G.Farnhill H.J.Drew J.E.Gonzalez-Solares E.A.Greimel R.,Irwin M.J.Miszalski B.Ruhland C.Groot P.Mampaso A.Sale S.E.,Henden A.A.Aungwerojwit A.Barlow M.J.Carter P.J.Corradi R.L.M.,Drake J.J.Eisloffel J.Fabregat J.Gansicke B.T.Gentile Fusillo N.P.,Greiss S.Hales A.S.Hodgkin S.Huckvale L.Irwin J.King R.,Knigge C.Kupfer T.Lagadec E.Lennon D.J.Lewis J.R.Mohr-Smith M.,Morris R.A.H.Naylor T.Parker Q.A.Phillipps S.Pyrzas S.Raddi R.,Roelofs G.H.A.Rodriguez-Gil P.Sabin L.Scaringi S.Steeghs D.,Suso J.Tata R.Unruh Y.C.Roestel J.VANViironen K.Vink J.S.,Walton N.A.Wright N.J.Zijlstra A.A.2024-01-30T12:46:30Z2014-09-10T14:15:29ZCDS support team

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

cds-question@unistra.frvisible-astronomyh-alpha-photometryemission-line-starsgalaxy-planesmilky-way-galaxysurveysThe INT/WFC Photometric H-Alpha Survey of the Northern Galactic Plane (IPHAS) is a 1860 deg^2^ imaging survey of the Northern Milky Way at red visible wavelengths. It covers Galactic latitudes |b|<5{deg} and longitudes l=30 to 215{deg} in the broad-band r, i and narrow-band H-alpha filters using the Wide Field Camera (WFC) on the 2.5-m Isaac Newton Telescope (INT) in La Palma. IPHAS Data Release 2 (DR2) is the first quality-controlled and globally calibrated source catalogue derived from the survey, providing single-epoch photometry for 219 million unique sources across 92% of the footprint. The observations were carried out between 2003 and 2012 at a median seeing of 1.1 arcsec (sampled at 0.33 arcsec/pixel) and to a mean 5-sigma depth of 21.2 (r), 20.0 (i) and 20.3 (H-alpha). The photometric calibration is in the Vega magnitude system and carries an external precision of 0.03mag (root-mean-square error). The catalogue includes all the sources which have been detected at a signal-to-noise ratio of 5 or better in at least one band. Many applications will require a combination of quality criteria to be applied to avoid faint stars or confused sources. The choice of quality criteria tensions completeness against reliability, and hence depends on the requirements of a project. To aid users, the data release paper (arXiv:1406.4862) recommends two sets of quality criteria, named "a10" and "a10point", which should satisfy most projects. As a minimum, the "a10" criteria select objects which have been detected at the minimum level of 10-sigma in all bands, without being saturated. Additional constraints are provided by the "a10point" criteria, which require objects to be point sources free of blending, unaffected by nearby bright stars, as well as being unsaturated >10-sigma detections in all bands. Sources in both categories are flagged in the catalogue using the boolean columns a10 and a10point. Imaging and auxiliary data are available from the project website (www.iphas.org).2014MNRAS.444.3230Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/II/321CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=II/321https://vizier.iucaa.in/viz-bin/VizieR-2?-source=II/321http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=II/321https://vizier.cds.unistra.fr/viz-bin/votable?-source=II/321https://vizier.iucaa.in/viz-bin/votable?-source=II/321http://vizieridia.saao.ac.za/viz-bin/votable?-source=II/321GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table II/321/iphas2 (the IPHAS DR2 release)https://vizier.cds.unistra.fr/viz-bin/conesearch/II/321/iphas2?https://vizier.iucaa.in/viz-bin/conesearch/II/321/iphas2?http://vizieridia.saao.ac.za/viz-bin/conesearch/II/321/iphas2?GETtext/xml+votable180.050000true78.4803829.913930.0055555555555555563/20 22 223 225 228-229 240 347 380 382 478 4/84 109 111-114 120 122 189-191 197-199 203-206 208 225-228 232-233 810-811 814 875 878-879 890-891 896-897 964-966 976-977 980 1379 1382 1385 1476-1477 1479 1485 1487 1490 1496 1498 1534 1894-1895 1897 1900-1901 1916 1918-1919 2005 5/344-346 368 370 376 407 413 415 443 460-462 484 486 733 735 750-751 755 785-787 805 807 828-830 840 842 897-899 916 920-922 936-938 940 3234-3235 3238 3260 3262-3263 3306-3307 3310-3311 3322-3323 3326-3327 3498-3499 3511 3547 3549-3551 3554-3555 3557-3559 3592-3593 3596-3597 3599 3680-3681 3684-3685 3696 3868-3870 3912-3913 3916-3917 3924-3925 3928 5526 5532 5534 5549 5551 5608 5610 5912-5913 5915 5937 5939 5952 5954-5955 5966 5988 5990 5996 5998-5999 6036-6037 6039 6045 6047 6069 6098 6104 6106 6128 6130 7557 7559 7565-7567 7570-7571 7574 7609 7612-7613 7615 7624 7626-7627 7630-7631 7668 7670-7671 8004-8005 8016-8017 8019 6/1109 1111 1117 1119 1141 1237 1247 1269 1271 1277 1279 1388-1390 1476 1478 1512 1514 1621-1623 1649 1651 1657-1659 1741 1743 1765-1767 1771 1852 1854 1856 1858 1968-1970 1976 2911 2937-2939 2991 2997-2999 3013-3015 3017-3019 3127 3133-3135 3137 3139 3219 3225-3227 3239 3245-3247 3324-3326 3364 3456-3458 3464 3466 3585 3587 3668 3672-3674 3692-3694 3696 3756-3758 3764 3768 3776-3778 12930-12931 12958-12959 13002 13044 13046-13047 13218-13219 13222-13223 13234-13235 13238-13239 13282-13283 13286-13287 13298-13299 13302-13303 13986-13987 13989-13991 14026-14027 14030-14031 14041-14043 14143 14175 14186-14187 14193-14195 14211 14214-14215 14225-14227 14381 14392-14393 14532-14533 14544-14545 14548-14549 14551 14788-14790 14800-14802 14804-14805 15484-15486 15488-15489 15492-15493 15504-15505 15508 15656-15657 15660-15661 15672-15673 15704-15706 15708-15709 15716-15717 22047 22053 22055 22061 22063 22090-22091 22094-22095 22132 22134 22140 22142-22143 22149 22193 22195 22402 22408 22410 22446 23572-23573 23575 23581 23657 23659 23745 23747 23781 23783 23789 23791 23812 23814-23815 23856 23858 23964 23966 23988 23990-23991 24153 24155 24177 24179 24284-24285 24287 24309 24311 24317 24319 24384 24386 24430 24516 24518 24524 24526-24527 30233 30235 30257 30259 30272 30274-30275 30278-30279 30300 30302-30303 30343 30389 30432-30433 30457 30500 30502-30503 30514-30515 30570-30571 30574 30678-30679 32001 32004-32005 32029 32072-32073 32075 32112-32113 32116-32117 321192.3431779657052235e-19 3.547591021873338e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/II/321?format=asciiOpticaldefaultII/321/iphas2the IPHAS DR2 releaseiSeeing? Average FWHM in the same CCD framearcsecphys.angSizefloatnullableIPHASIPHAS name, based on J2000 positionmeta.id;meta.maincharprimaryRAJ2000Right ascension (J2000) from r-banddegpos.eq.ra;meta.mainDEJ2000Declination (J2000) from r-banddegpos.eq.dec;meta.mainsourceIDUnique identification numbermeta.idcharindexedposErrRMS residual against 2MASS across the CCDarcsecstat.errorfloatmergedClassImage classification flag (1)meta.code.classintmergedClassStatMerge stellarness-of-profile statisticstatfloatpStarPoint source probabilitystat.fit.goodnessfloatpGalaxyExtended source probabilitystat.fit.goodnessfloatpNoiseNoise source probabilitystat.fit.goodnessfloatrmi? r-i colourmagphot.color;em.opt.R;em.opt.Ifloatnullablermha? r-Halpha colourmagphot.color;em.opt.R;em.line.Halphafloatnullabler? r mag using 2.3 arcsec diameter aperture (Vega scale)magphot.mag;em.opt.RfloatnullableindexedrErr? Uncertainty for r (2)magstat.error;phot.magfloatnullablerPeakMag? Alternative r mag derived from the peak pixel height (Vega scale)magphot.mag;em.opt.RfloatnullablerPeakMagErr? Uncertainty in rPeakMag (2)magstat.error;phot.magfloatnullablerAperMag1? Alternative r mag using the 1.2 arcsec diameter aperture (Vega scale)magphot.magfloatnullablerAperMag1Err? Uncertainty in rAperMag1 (2)magstat.error;phot.magdoublenullablerAperMag3? Alternative r mag using the 3.3 arcsec diameter aperture (Vega scale)magphot.magfloatnullablerAperMag3Err? Uncertainty in rAperMag3 (2)magstat.error;phot.magdoublenullablerGauSig? RMS of axes of ellipse fit in r-bandpixstat.errorfloatnullablerEll? Ellipticity in the r-bandsrc.ellipticityfloatnullablerPA? Position angle in the r-banddegpos.posAngfloatnullablerClassDiscrete image classification flag (3)meta.code.classintrClassStat? N(0,1) stellarness-of-profile statisticstatfloatnullablerDeblend[0,1] Blend flag for r-band.meta.codeintrSaturated[0,1] Saturation flag for r-bandmeta.codeintrSeeing? Average FWHM in the same CCD framearcsecphys.angSizefloatnullablerDetectionID? Unique identifier of the r detection (4)meta.idcharrX? Pixel position in the r-band exposurepixpos.cartesian.x;instr.detfloatnullablerY? Pixel position in the r-band exposurepixpos.cartesian.y;instr.detfloatnullablei? i mag using 2.3 arcsec diameter aperture (Vega scale)magphot.mag;em.opt.IfloatnullableindexediErr? Uncertainty for i (2)magstat.error;phot.magfloatnullableiPeakMag? Alternative i mag derived from the peak pixel height (Vega scale)magphot.mag;em.opt.IfloatnullableiPeakMagErr? Uncertainty in iPeakMag (2)magstat.error;phot.magfloatnullableiAperMag1? Alternative i mag using the 1.2 arcsec diameter aperture (Vega scale)magphot.magfloatnullableiAperMag1Err? Uncertainty in iAperMag1 (2)magstat.error;phot.magdoublenullableiAperMag3? Alternative i mag using the 3.3 arcsec diameter aperture (Vega scale)magphot.magfloatnullableiAperMag3Err? Uncertainty in iAperMag3 (2)magstat.error;phot.magdoublenullableiGauSig? RMS of axes of ellipse fit in i-bandpixstat.errorfloatnullableiEll? Ellipticity in the i-bandsrc.ellipticityfloatnullableiPA? Position angle in the i-banddegpos.posAngfloatnullableiClassDiscrete image classification flag (3)meta.code.classintiClassStat? N(0,1) stellarness-of-profile statisticstatfloatnullableiDeblend[0,1] Blend flag for i-band.meta.codeintiSaturated[0,1] Saturation flag for i-bandmeta.codeintiMJD? Modified Julian Date for the i exposuredtime.epochdoublenullableiDetectionID? Unique identifier of the i detection (4)meta.idchariX? Pixel position in the i-band exposurepixpos.cartesian.x;instr.detfloatnullableiY? Pixel position in the i-band exposurepixpos.cartesian.y;instr.detfloatnullableiXi? offset of the i-band position relative to the ra columnarcsecpos.angDistancedoublenullableiEta? offset of the i-band position relative to the dec columnarcsecpos.angDistancefloatnullableha? H-alpha mag using 2.3" diameter aperture (Vega scale)magphot.magfloatnullableindexedhaErr? Uncertainty for H-alpha (2)magstat.error;phot.magfloatnullablehaPeakMag? Alternative H-alpha mag derived from the peak pixel height (Vega scale)magphot.magfloatnullablehaPeakMagErr? Uncertainty in haPeakMag (2)magstat.error;phot.magfloatnullablehaAperMag1? Alternative H-alpha mag using the 1.2 arcsec diameter aperture (Vega scale)magphot.magfloatnullablehaAperMag1Err? Uncertainty in haAperMag1 (2)magstat.error;phot.magfloatnullablehaAperMag3? Alternative H-alpha mag using the 3.3 arcsec diameter aperture (Vega scale)magphot.magfloatnullablehaAperMag3Err? Uncertainty in iAperMag3 (2)magstat.error;phot.magdoublenullablehaGauSig? RMS of axes of ellipse fit in H-alphapixstat.errorfloatnullablehaEll? Ellipticity in H-alphasrc.ellipticityfloatnullablehaPA? Position angle in H-alphadegpos.posAng;spect.linefloatnullablehaClassDiscrete image classification flag (3)meta.code.classinthaClassStat? N(0,1) stellarness-of-profile statisticstatfloatnullablehaDeblend[0,1] Blend flag for H-alphameta.codeinthaSaturated[0,1] Saturation flag for H-alphameta.codeinthaMJD? Modified Julian Date for the Ha exposuredtime.epochdoublenullablehaSeeing? Average FWHM in the same CCD framearcsecphys.angSizefloatnullablehaDetectionID? Unique ID of the H-alpha detection (4)meta.idcharhaX? Pixel position in the H-alpha exposurepixpos.cartesian.x;instr.detfloatnullablehaY? Pixel position in the H-alpha exposurepixpos.cartesian.y;instr.detfloatnullablehaXi? offset of the H-alpha position relative to the ra columnarcsecpos.angDistancedoublenullablehaEta? offset of the H-alpha position relative to the dec columnarcsecpos.angDistancefloatnullablebrightNeighb[0,1] Nearby very bright star flag (5)meta.codeintdeblend[0,1] Blend flagmeta.codeintsaturated[0,1] Saturation flagmeta.codeintnBandsNumber of bands for source detectionmeta.numberinta10[0,1] signal-to-noise >10 flag (6)meta.codeinta10point[0,1] quality criteria flag (7)meta.code.qualintfieldIDSurvey field identifiermeta.id;obs.fieldcharfieldGradeInternal quality control scoremeta.code.qualcharnightUT date at the start of the nighttime.epochintseeingMaximum of rSeeing, iSeeing or HaSeeingarcsecphys.angSizefloatccd[1-4] CCD chip numbermeta.idintnObs[1-9] Number of observations of the sourcemeta.numberintsourceID2? SourceID of the alternative detection of the object in the partner exposuremeta.idcharfieldID2? Field identifier of the partner detectionmeta.id;instr.saturation;obs.fieldcharr2? r mag in the dithered partner field (Vega scale)magphot.mag;em.opt.RfloatnullablerErr2? Uncertainty for r2magstat.error;phot.magfloatnullablei2? i mag in the dithered partner field (Vega scale)magphot.mag;em.opt.IfloatnullableiErr2? Uncertainty for i2magstat.error;phot.magfloatnullableha2? Ha mag in the dithered partner field (Vega scale)magphot.magfloatnullablehaErr2? Uncertainty for ha2magstat.error;phot.magfloatnullableerrBits2? Error bitmask for the partner detection (8)meta.code.qualintnullablerMJD? Modified Julian Date for the r exposuredtime.epochdoublenullableindexed