J/A+A/647/A60ivo://CDS.VizieR/J/A+A/647/A60doi:10.26093/cds/vizier.36470060CDSBommier V.Leroy J.L.Sahal-Brechot S.2021-09-06T12:50:22Z2021-03-09T08:24:22ZCDS support team

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

cds-question@unistra.frthe-sunmagnetic-fieldspolarimetryThe aim of the present paper is to publish 24 synoptic maps of solar filaments, in which 296 prominence average unambiguous magnetic field vectors were determined by Pic-du-Midi observations between 1974 and 1982, which is the ascending phase of cycle XXI. The magnetic field was determined by interpretation of the Hanle effect observed in the HeI D3 line. Previou the prominence field polarity and prominence chirality were applied to solve the fundamental ambiguity. The meas averaged in each prominence for accuracy reasons. The result is twofold. First, alternating field directions can be observed from one neutral line to the next general field alignment is found along a solar North-South field distorted under the differential rotation effect. The about prominence and their magnetic field coordinates are provided as on-line material associated to this paper.2021A&A...647A..60Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+A/647/A60CatalogResearchIsServedByTAP VizieR generic servicehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+A/647/A60https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+A/647/A60http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+A/647/A60https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+A/647/A60https://vizier.iucaa.in/viz-bin/votable?-source=J/A+A/647/A60http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+A/647/A60GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapdefaultJ/A+A/647/A60/data296 prominences solar coordinates and magnetic field vector datarecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTypeType of prominence (1)meta.codecharUTtime of observation (universal time)time.epochnullableObs.dateDate of observationtime.epochnullableb0Disk center latitudedegpos.frameintLcCentral meridian Carrington longitudedegpos.eq.haintAPposition angle of the observed prominence with respect to the solar North, anticlockwise)degpos.posAngintbProminence latitudedegpos.frameintlProminence longitudedegpos.eq.haintCarrCarrington rotation reference numbermeta.idintCsiAngle between the filament and the parallel (sign convention: Leroy et al., 1984A&A...131...33L, Fig. 4)deginstr.offsetintChiAngle outside the sky planedeginstr.offsetintLosAngle between the line-of-sight and the parallel (in degrees)deginstr.offsetintBAverage magnetic field strength (in Gauss)Gphys.magField;phys.atmol.collStrengthfloate_BUncertainty on the magnetic field strength as a result of the photometric accuracy (in Gauss)Gstat.errorfloatTAverage magnetic field azimuth angle with the paralleldegpos.az.altinte_TUncertainty on the magnetic field azimuth as a result of the photometric accuracydegstat.errorintaAlpha angle between the field vector and the filament axis (sign convention: Leroy et al., 1984A&A...131...33L, Fig. 4)degpos.eq.ra;obs.fieldintNavNumber of averaged measurement pointsmeta.numberintMethodAmbiguity resolution method (polarity or chirality)meta.notechar