J/MNRAS/493/3293ivo://CDS.VizieR/J/MNRAS/493/3293doi:10.26093/cds/vizier.74933293CDSBernhard K.Hummerich S.Paunzen E.2024-08-20T20:16:33Z2023-07-20T15:00:01ZCDS support team

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

cds-question@unistra.frpeculiar-variable-starsvariable-starsmagnetic-fieldsastrometrystellar-spectral-typesphotometryvisible-astronomyMagnetic chemically peculiar (mCP) stars allow the investigation of such diverse phenomena as atomic diffusion, magnetic fields, and stellar rotation. The aim of the present investigation is to enhance our knowledge of the rotational properties of mCP stars by increasing the sample of objects with accurately determined rotational periods. To this end, archival photometric time-series data from the ASAS-3, KELT, and MASCARA surveys were employed to improve existing rotational period information and derive rotational periods for mCP stars hitherto not known to be photometric variables. Our final sample consists of 294 mCP stars, a considerable amount of which (more than 40 per cent) are presented here as photometric variables for the first time. In addition, we identified 24 mCP star candidates that show light variability in agreement with rotational modulation but lack spectroscopic confirmation. The rotational period distribution of our sample agrees well with the literature. Most stars are between 100Myr and 1Gyr old, with an apparent lack of very young stars. No objects were found on the zero-age main sequence; several stars seem to have evolved to the subgiant stage, albeit well before the first dredge-up. We identified four eclipsing binaries (HD 244391, HD 247441, HD 248784, and HD 252519), which potentially host an mCP star. This is of great interest because mCP stars are very rarely found in close binary systems, particularly eclipsing ones. Using archival spectra, we find strong evidence that the HD 252519 system indeed harbours an mCP star component.2020MNRAS.493.3293Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/493/3293CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toIII/260 : General Catalogue of Ap and Am stars (Renson+ 2009)B/gcvs : General Catalogue of Variable Stars (Samus+, 2007-2017)J/A+A/617/A32 : MASCARA bright variable stars light curves (Burggraaff+, 2018)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/493/3293https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/493/3293http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/493/3293https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/493/3293https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/493/3293http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/493/3293GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/493/3293/table3 (Essential data for the ACV variable candidates identified among stars of other CP subclasses or stars from RM09 with non-peculiar classifications)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/3293/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/3293/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/3293/table3?GETtext/xml+votable180.050000true18.2907561.70619440.005555555555555556Cone search capability for table J/MNRAS/493/3293/tablea1 (Essential data for the mostly new ACV variables analysed with ASAS-3 and KELT data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/3293/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/3293/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/3293/tablea1?GETtext/xml+votable180.050000true38.0070417-3.82413890.005555555555555556Cone search capability for table J/MNRAS/493/3293/tablea2 (Essential data for the known ACV variables whose rotational periods were investigated with MASCARA data)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/493/3293/tablea2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/493/3293/tablea2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/493/3293/tablea2?GETtext/xml+votable180.050000true9.63275-20.29655560.0055555555555555566/263 351 389 421 465 481 759 842 962 1125 1164 1169 1284 1296 1313 1433 1608 1763 1768 1922 2229 2354 2385 2395 2411 2420 2436 2527 2682 2818 2820 2853 3074 3279 3333 3571 3637 3694 3705 3713 4018 4102 6497 6661 6759-6760 6822 6831 7527 7705 7734 7806 8074 8389 8462 10000 10142 11279 11786 12539 12702 12726 12770 12772 12850 12936 12993 13052 13199 13224 13244 13272-13273 13281 13291 13448 13596 13678 13693 13780 13839 13857 14034 14094 14126 14272 14306 14312 14317 14386 14668 14676 14684 14695 14708 14766 14802 14843 14862 14922 14927 14930 14982 15110 15361 15363 15408 15424 15460 15464 15496 15617 15800 16074 16104 16186 16197 16788 16982 17687 18273 18619 20363 20705 20763 20790 20797 20895 20975 20983 20987 21222 21389 21490 21546 21637 21639 21707 22020 22066 22077 22090 22115 22179 22251 22262 22311 22443 22578 22727 22769 22850 22862 22867 22957 23010 23063 23076 23200 23571 23590 23641 23782 23945 23997 24108 24171 24178 24455 24463 24466 24469 24476 24478 24489 24495 24504 24509-24510 24518 24523 24528 24544 24546 24722 24744 25122 26057 26353 26381 26721 28237 28708 28710 28737 28780 28915 28929 29005-29006 29097 29121 29164 29185 29257 29364 29420 29555 29920 30264 30306 30398 30411 30505 30697 30870 30918 31716 31790 32198 33360 33943 34005 35630 36119 36298 37138 37208 37223 37289 37366 37453 37655 37703 37899 37913 38058 38063 38096 38119 38123 38161 38379 38407 38519 38848 38909 39154 39194 39202 39221 39305 39488 39639 39649-39650 39658 39736 39739 39860 39872 39880 39978 40107 40129 40572 40599 40652 40750 41191 41275 41533 41674 41683-41684 41714 41725 41824 41836 41838 41840 41926 42019 42023 42110 42148 42228 42237 42256 42454 42861 42975 43024 43038 43067 43167 44317 44651 44892 46153 47230 47272 47388 47532 47653 47802 47822 47846 47982 47993 48582 48791 48896 491281.9867573869263685e-19 3.916500758235022e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/493/3293?format=asciiOpticaldefaultJ/MNRAS/493/3293/table3Essential data for the ACV variable candidates identified among stars of other CP subclasses or stars from RM09 with non-peculiar classificationsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSurveySurvey source (KELT or MASCARA)meta.notecharNameVariable candidate name (HD NNNNNN or TYC FFF-NNNNN-N)meta.id;meta.maincharf_Name[ab] Flag on Name (1)meta.codecharIDIdentification number from Renson & Manfroid (2009A&A...498..961R, Cat III/260)meta.idintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral type from Renson & Manfroid (2009A&A...498..961R, Cat III/260)src.spTypecharVmagminV-band magnitude (minimum value)magphot.mag;em.opt.VfloatVmagmaxV-band magnitude (maximum value)magphot.mag;em.opt.VfloatPeriodPeriod derived in this workdtime.perioddoublee_PeriodError on Perioddstat.error;time.perioddoubleEpochEpoch (HJD-2450000)dtime.epochdoublee_EpochError on Epochdstat.error;time.epochfloatA1Semi-amplitude of the fundamental variationmagarith.rate;src.var.amplitudefloatA2Semi-amplitude of the first harmonic variationmagarith.rate;src.var.amplitudefloatSimbadSimbad column added by the CDSmeta.ref.urlcharPhi1Phase of the fundamental variationradtime.phasefloatPhi2Phase of the first harmonic variationradtime.phasefloatGmagGaia DR2 G-band magnitudemagphot.mag;em.optfloatBP-RPGaia DR2 BP-RP colourmagphot.color;em.opt.B;em.opt.RfloatJ/MNRAS/493/3293/tablea1Essential data for the mostly new ACV variables analysed with ASAS-3 and KELT dataSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintSurvey[AK] Survey source (A: ASAS-3; K: KELT)meta.notecharNameVariable candidate name (HD NNNNNN or TYC FFF-NNNNN-N)meta.id;meta.maincharf_NameFlag on Name (1)meta.codecharbinary[*] Indicates the source is one of the four binary systems in the samplemeta.codecharIDIdentification number from Renson & Manfroid (2009A&A...498..961R, Cat III/260)meta.idintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral type from Renson & Manfroid (2009A&A...498..961R, Cat III/260)src.spTypecharVmagminV-band magnitude (minimum value)magphot.mag;em.opt.Vfloatl_VmagmaxLimit flag on Vmagmaxmeta.code.errorcharVmagmaxV-band magnitude (maximum value)magphot.mag;em.opt.VfloatPeriodPeriod derived in this workdtime.perioddoublee_PeriodError on Perioddstat.error;time.perioddoubleEpochEpoch (HJD-2450000)dtime.epochdoublee_EpochError on Epochdstat.error;time.epochfloatA1? Semi-amplitude of the fundamental variationmagarith.rate;src.var.amplitudefloatnullableA2? Semi-amplitude of the first harmonic variationmagarith.rate;src.var.amplitudefloatnullablePhi1? Phase of the fundamental variationradtime.phasefloatnullablePhi2? Phase of the first harmonic variationradtime.phasefloatnullableGmagGaia DR2 G-band magnitudemagphot.mag;em.optfloatBP-RPGaia DR2 BP-RP colourmagphot.color;em.opt.B;em.opt.RfloatJ/MNRAS/493/3293/tablea2Essential data for the known ACV variables whose rotational periods were investigated with MASCARA dataSimbadSimbad column added by the CDSmeta.ref.urlcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameVariable candidate name (HD NNNNNN)meta.id;meta.maincharIDIdentification number from Renson & Manfroid (2009A&A...498..961R, Cat III/260)meta.idintRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainSpTypeSpectral type from Renson & Manfroid (2009A&A...498..961R, Cat III/260)src.spTypecharVmagminV-band magnitude (minimum value)magphot.mag;em.opt.VfloatVmagmaxV-band magnitude (maximum value)magphot.mag;em.opt.VfloatPVSXPeriod from literaturedtime.perioddoublePeriodPeriod derived in this workdtime.perioddoublee_PeriodError on Perioddstat.error;time.perioddoubleEpochEpoch (HJD-2450000)dtime.epochdoublee_EpochError on Epochdstat.error;time.epochfloatA1Semi-amplitude of the fundamental variationmagarith.rate;src.var.amplitudefloatA2Semi-amplitude of the first harmonic variationmagarith.rate;src.var.amplitudefloatPhi1Phase of the fundamental variationradtime.phasefloatPhi2Phase of the first harmonic variationradtime.phasefloatGmag? Gaia DR2 G-band magnitudemagphot.mag;em.optfloatnullableBP-RP? Gaia DR2 BP-RP colourmagphot.color;em.opt.B;em.opt.Rfloatnullable