J/MNRAS/377/1263ivo://CDS.VizieR/J/MNRAS/377/1263doi:10.26093/cds/vizier.73771263CDSSzczygiel D.M.Fabrycky D.C.2024-07-04T20:18:13Z2008-06-07T14:49:38ZCDS support team

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

cds-question@unistra.frvariable-starsThe All Sky Automated Survey (ASAS) monitors bright stars (8<V<14mag) south of declination +28{deg}. The ASAS Catalogue of Variable Stars (ACVS) presently contains 50099 objects; among them are 2212 objects classified as RR Lyrae pulsating variables. We use ASAS photometric V-band data to search for multiperiodicity in those stars. We find that 73 of 1435 RRab stars and 49 of 756 RRc stars exhibit the Blazhko effect. We observe a deficiency of RRab Blazhko variables with main pulsation periods greater than 0.65d. The Blazhko periods of RRc stars exhibit a strongly bimodal distribution. During our study we discovered the Blazhko effect with multiple periods in object ASAS 0507473351.9 = SU Col. Blazhko periods of 89.3 and 65.8d and a candidate of 29.5d were identified with periodogram peaks near the first three harmonics of the main pulsation. These observations may inspire new models of the Blazhko effect, which has eluded a consistent theory since its discovery about one hundred years ago. Long-term light curve changes were found in 29 stars. We also found 19 Galactic double mode pulsators (RRd), of which four are new discoveries, raising the number of ASAS discoveries of such objects to 16, out of 27 known in the field of our Galaxy.2007MNRAS.377.1263Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/377/1263CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AcA/48/35 : All Sky Automated Survey variable stars (Pojmamski 1998)J/AcA/50/177 : All Sky Automated Survey Catalog (Pojmanski+, 2000)II/264 : ASAS Variable Stars in Southern hemisphere (Pojmanski+ 2002-05)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/377/1263https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/377/1263http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/377/1263https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/377/1263https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/377/1263http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/377/1263GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/377/1263/table2 (Objects exhibiting BL1 effect (1 peak in Blazhko period range))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/1263/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/1263/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/1263/table2?GETtext/xml+votable180.050000true2.921415-1.748720.005555555555555556Cone search capability for table J/MNRAS/377/1263/table3 (Objects exhibiting BL2 effect (2 symetric peaks in Blazhko period range))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/1263/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/1263/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/1263/table3?GETtext/xml+votable180.050000true8.80623-4.250220.005555555555555556Cone search capability for table J/MNRAS/377/1263/table4 (Objects exhibiting long period changes (PCs))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/1263/table4?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/1263/table4?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/1263/table4?GETtext/xml+votable180.050000true15.319605-45.943590.005555555555555556Cone search capability for table J/MNRAS/377/1263/table7 (Parameters for double-mode RR Lyrae stars (RRd) found in ASAS data.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/377/1263/table7?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/377/1263/table7?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/377/1263/table7?GETtext/xml+votable180.050000true52.08426-64.977350.0055555555555555566/69 385 4442 8508 8523 10264 12354 12686 14358 16867 17014 17025 17045 17112 17468 17964 18080 18632 18640 19118 19138 19279 20618 21023 21111 21280 22170 23898 24604 24772 24784 24866 24966 25107 25120 25534 25670 25806 25921 26048 26113 27016 28813 29225 29696 29789 31374 31498 31500 31923 33097 33197 33342 33525 33544 33853 33877 33905 33936 34169 34240 34285 34322 34378 35025 35180 35390 35396 35869 35944 36048 36225 36363 36605 36912 37455 37598 37911 38087 38204 38456 38705 38762 38942 38947 39485 39504 39605 39633 40085 40349 40475 40483 40806 40924 40942 40952 40988 41355 42062 42097 42260 42269 42604 42658 42987 43416 43491 43580 44326 44384 44595 44600 44838 44901 45062 45086 45243 45465 45478 45704 45741 45753 45761 45767 45876 45898-45899 45957 45994 46266 46336 46441 46482 46575 46632 46792 46949 46966 46975 47074 47259 47371 47467 47510 47598 47619 47821 47867 48194 48207 48301 48363 48459 48539 48661 48715 48911https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/377/1263?format=asciiOpticaldefaultJ/MNRAS/377/1263/table2Objects exhibiting BL1 effect (1 peak in Blazhko period range)VmagV magnitudemagphot.mag;em.opt.VfloatTypeVariable typemeta.code;src.varcharONameOther namemeta.idcharAnoiseNoise on A0 and A1 amplitudesinstr.det.noisefloatrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintmSimbad column added by the CDSmeta.notecharASASASAS designation (HHMMSS-DDMM.m, J2000)meta.id;meta.maincharn_ASAS[*] * for stars which had a BL1 frequency in all three light curvesmeta.notecharPerMain period (P=f0^-1^, where f0 is the main pulsation frequency)dtime.period;meta.maindoublePBlBlazhko period (G1)dtime.perioddoubleA0Peak-to-peak amplitude of variation as provided by ASAS Catalog of Variable Starsmagmeta.idfloatA1Peak-to-peak amplitude of Blazhko modulationmagsrc.var.amplitudefloatA1/A0A1/A0 amplitude ratiosrc.var.amplitude;arith.ratiofloat_RARight Ascension (J2000) from II/264/asas3degpos.eq.ra;meta.main_DEDeclination (J2000) from II/264/asas3degpos.eq.dec;meta.mainJ/MNRAS/377/1263/table3Objects exhibiting BL2 effect (2 symetric peaks in Blazhko period range)ONameOther namemeta.idcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintmSimbad column added by the CDSmeta.notecharASASASAS designation (HHMMSS-DDMM.m, J2000)meta.id;meta.maincharVmagV magnitudemagphot.mag;em.opt.VfloatPerMain period (P=f0^-1^, where f0 is the main pulsation frequency)dtime.period;meta.maindoublePBlBlazhko period (G1)dtime.perioddoubleA0Peak-to-peak amplitude of variation as provided by ASAS Catalog of Variable Starsmagmeta.idfloatA-Peak-to-peak amplitude of Blazhko modulation corresponding to the modulation frequency on the left-hand side of the main pulsation frequencymagsrc.var.amplitudefloatA+Peak-to-peak amplitude of Blazhko modulation corresponding to the modulation frequency on the right-hand side of the main pulsation frequencymagsrc.var.amplitudefloatA-/A+A-/A+ amplitude ratiosrc.var.amplitude;arith.ratiofloatAnoiseNoise on A0, A- and A+ A1 amplitudesinstr.det.noisefloatTypeVariable typemeta.code;src.varchar_RARight Ascension (J2000) from II/264/asas3degpos.eq.ra;meta.main_DEDeclination (J2000) from II/264/asas3degpos.eq.dec;meta.mainJ/MNRAS/377/1263/table4Objects exhibiting long period changes (PCs)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintmSimbad column added by the CDSmeta.notecharASASASAS designation (HHMMSS-DDMM.m, J2000)meta.id;meta.maincharn_ASAS[*] * for stars which had a BL1 frequency in all three light curvesmeta.notecharVmagV magnitudemagphot.mag;em.opt.VfloatPerMain period (P=f0^-1^, where f0 is the main pulsation frequency)dtime.period;meta.maindoublePBlBlazhko period (G1)dtime.perioddoubleA0Peak-to-peak amplitude of variation as provided by ASAS Catalog of Variable Starsmagmeta.idfloatA1Peak-to-peak amplitude of Blazhko modulationmagsrc.var.amplitudefloatA1/A0A1/A0 amplitude ratiosrc.var.amplitude;arith.ratiofloatAnoiseNoise on A0 and A1 amplitudesinstr.det.noisefloatTypeVariable typemeta.code;src.varcharONameOther namemeta.idchar_RARight Ascension (J2000) from II/264/asas3degpos.eq.ra;meta.main_DEDeclination (J2000) from II/264/asas3degpos.eq.dec;meta.mainJ/MNRAS/377/1263/table7Parameters for double-mode RR Lyrae stars (RRd) found in ASAS data.recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintASASASAS designation (HHMMSS-DDMM.m, J2000)meta.id;meta.maincharn_ASAS[*] * for new discoverymeta.notecharVmagV magnitudemagphot.mag;em.opt.VfloatP0Fundamental mode perioddtime.perioddoubleA0Peak-to-peak amplitude of variation of fundamental modemagarith.rate;src.var.amplitudefloatP1First overtone perioddtime.perioddoubleA1Peak-to-peak amplitude of variation of first overtonemagarith.rate;src.var.amplitudefloatP1/P0P1/P0 period ratiotime.perioddoubleA1/A0A1/A0 amplitude ratiosrc.var.amplitude;arith.ratiofloatONameOther namemeta.idcharRef? Reference number (1)meta.idintnullable_RARight Ascension (J2000) from II/264/asas3degpos.eq.ra;meta.main_DEDeclination (J2000) from II/264/asas3degpos.eq.dec;meta.main