J/ApJ/647/418ivo://CDS.VizieR/J/ApJ/647/418doi:10.26093/cds/vizier.16470418CDSFish V.L.Brisken W.F.Sjouwerman L.O.2008-09-27T12:53:54Z2008-09-27T12:50:12ZCDS support team

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

cds-question@unistra.frinterstellar-mediumastrophysical-masersradio-astronomyWe present VLBA observations of the ground-state hydroxyl masers in W3(OH) at 0.02km/s spectral resolution. Over 250 masers are detected, including 56 Zeeman pairs. Line shapes are predominantly Gaussian or combinations of several Gaussians, with normalized deviations typically of the same magnitude as in masers in other species.2006ApJ...647..418Fhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/647/418CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/647/418https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/647/418http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/647/418https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/647/418https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/647/418http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/647/418GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapRadiodefaultJ/ApJ/647/418/table1Detected Masers in W3(OH)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordint[FBS2006b][1/253] Spot numbermeta.id;meta.mainintFreqFrequencyMHzem.freqintPol[LR] Left or Right circular polarizationmeta.notecharoRARight Ascension offset (2)maspos.eq.ra;arith.diffdoubleoDEDeclination offset (2)maspos.eq.dec;arith.diffdoubleVelPeak emission channel LSR velocitykm/sphys.veloc;pos.lsrfloatBrightPeak brightness in units of Jy/beam (3)Jyphot.flux.density;em.radio.1500-3000MHzfloatGrad? Velocity gradientkm.s**-1.mas**-1arith.grad;phys.velocfloatnullablePA[-180/180]? Position angle (4)degpos.posAngintnullablef_PA[f] f: Gradient computed over multiple peaksmeta.codecharPair? Zeeman pair number as listed in Table 2meta.idintnullableJ/ApJ/647/418/table2Zeeman Pairs in W3(OH)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPair[1/56] Pair Numbermeta.idintprimaryFreqFrequencyMHzem.freqintoRA1Left circular polarisation (LCP) component Right Ascension offsetmaspos.eq.ra;arith.difffloatoDE1LCP component Declination offsetmaspos.eq.dec;arith.diffdoubleVel1LCP component Peak emission channel LSR velocitykm/sphys.veloc;pos.lsrfloatoRA2Right circular polarisation (RCP) component Right Ascension offsetmaspos.eq.ra;arith.difffloatoDE2RCP component Declination offsetmaspos.eq.dec;arith.diffdoubleVel2RCP component Peak emission channel LSR velocitykm/sphys.veloc;pos.lsrfloatBMagnetic field, in mGauss (1)1e-07Tfloatn_B[b] Note on B (2)meta.notechar