J/A+AS/121/57ivo://CDS.VizieR/J/A+AS/121/57CDSCatalano F.A.Renson P.2018-02-01T11:50:43Z2000-03-29T21:53:29ZCDS support team

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

cds-question@unistra.frap-starsNew data on the periods of Ap stars with references are presented (Table 1). 21 further stars are introduced for which a periodic variability has recently been discovered or for which it was known before but it was not reported in previous issues of this catalogue. For many stars also present in previous issues of the catalogue new determinations of the periods are given. Recently attributed variable star names are also quoted. Note: this catalog is included in <III/199>1997A&AS..121...57Chttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/121/57CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/199 : Observed periods of Ap and Bp stars (Catalano+ 1997)J/A+A/378/113 : 5th supp. to the III/199 catalog (Catalano+ 2001)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/121/57https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/121/57http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/121/57https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/121/57https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/121/57http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/121/57GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+AS/121/57/table1The fourth supplement to the catalogue of the periods of Ap starsn_PerRemark about periodicitymeta.notecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintn_HD[+] A '+' indicates a note detailed in notes.datmeta.notecharHD? HD numbermeta.idintnullableHR? HR numbermeta.idintnullablen_HR[*] Note on HR (1)meta.notecharNameOther namemeta.id;meta.maincharName2Other namemeta.idcharSpSpectral typesrc.spTypecharPer? Perioddtime.perioddoublenullableu_Per[:?] period uncertain (:) or doubtful (?)meta.code.errorcharnPerNotes on Period (3)meta.notecharPer1Proposed periodicities (in days) and references (2)time.periodcharPer2Proposed periodicities (in days) and references (2)time.periodcharPer3Proposed periodicities (in days) and references (2)time.periodcharPer4Proposed periodicities (in days) and references (2)time.periodcharJ/A+AS/121/57/notesIndividual notesrecnoRecord number assigned by the VizieR team. Should Not be used for identification.intHD? HD designation (blank for the last star), repeated if several linesintnullableTextText of notechar