J/A+AS/133/1ivo://CDS.VizieR/J/A+AS/133/1CDSPaunzen E.Maitzen H.M.1998-12-03T15:49:50Z1998-12-03T16:49:14ZCDS support team

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

cds-question@unistra.frpeculiar-variable-starsvariable-starsSince variability of chemically peculiar (CP) stars plays an important role for the astrophysical explanation of their outstanding behaviour, we have identified new variable CP stars listed in Renson's catalogue using the extensive Hipparcos Variability Annex. From the 293 objects found, 33 were excluded because they are not CP stars and/or have no period listed, half of the remaining stars are newly identified and half had been already included in the catalogue of variable CP stars by Catalano & Renson (1997, Cat. <J/A+AS/121/57>). Most of the newly identified variability is due to an apparent magnetic field coupled with stellar rotation (oblique rotator model). The constraints of this model are fulfilled for all but three CP2 stars. Variations of bona fide Am-Fm stars are exclusively explained by eclipses of binary systems. Furthermore eight candidates of the gamma Doradus group (pulsating Am-Fm stars) were detected. Table 1 (table1.dat) presents the newly identified chemically peculiar stars.1998A&AS..133....1Phttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/A+AS/133/1CatalogResearchIsServedByTAP VizieR generic servicerelated-toIII/162 : General Catalogue of Ap and Am stars (Renson+ 1991)III/199 : Observed Periods of Ap and Bp stars (Catalano+ 1998)I/196 : Hipparcos Input Catalogue, Version 2 (Turon+ 1993)J/A+AS/121/57 : Ap stars periodicity (Catalano+ 1997)J/A+AS/128/573 : ubvy{Delta}a photometry of Renson stars (Maitzen+ 1998)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/A+AS/133/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/A+AS/133/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/A+AS/133/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/A+AS/133/1https://vizier.iucaa.in/viz-bin/votable?-source=J/A+AS/133/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/A+AS/133/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapOpticaldefaultJ/A+AS/133/1/table1New variable chemically peculiar stars identified in the Hipparcos archiverecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHDHD number with probability mark according to Renson (1991)meta.id;meta.mainintn_HD[?*/] Probability mark according to Renson (1991, Cat. <III/162>) (1)meta.notecharHICHIC (Cat. <I/196>) numbermeta.idintRNSNumber from Renson (1991, Cat. <III/162>)meta.idintTypeType of variationsmeta.code;src.varcharMinMinimum of the variationsmagphot.magfloatl_MaxLimit flag on Maxmeta.code.errorcharMaxMaximum of the variationsmagphot.magfloatPeriodPeriod of the variationsdtime.perioddoubleEpochEpoch as in the HVA (Hipparcos Variability Annex)dtime.epochdoubleDeltaa? {Delta}a index (2)magspect.indexfloatnullableDeltap? {Delta}p index (3)spect.indexfloatnullablel_vsiniLimit flag on vsinimeta.code.errorcharvsini? vsini valuekm/sphys.veloc.rotatintnullableSpecSpectral type according to Renson (1991, Cat. <III/162>))spect.indexchar