J/AcA/73/105ivo://CDS.VizieR/J/AcA/73/105CDSSoszynski I.Pietrukowicz P.Udalski A.Skowron J.Szymanski M.K.,Poleski R.Skowron D.M.Kozlowski S.Mroz P.Iwanek P.Wrona M.,Ulaczyk K.Rybicki K.Gromadzki M.Mroz M.2026-03-02T06:25:50Z2026-01-05T08:08:40ZCDS support team

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

cds-question@unistra.frmagellanic-cloudsvariable-starsphotometryvisible-astronomyWe present the OGLE collection of delta Scuti stars in the Large Magellanic Cloud and in its foreground. Our dataset encompasses a total of 15256 objects, constituting the largest sample of extragalactic delta Sct stars published so far. In the case of 12 delta Sct pulsators, we detected additional eclipsing or ellipsoidal variations in their light curves. These are the first known candidates for binary systems containing delta Sct components beyond the Milky Way. We provide observational parameters for all variables, including pulsation periods, mean magnitudes, amplitudes, and Fourier coefficients, as well as long-term light curves in the I- and V-bands collected during the fourth phase of the OGLE project. We construct the period-luminosity (PL) diagram, in which fundamental-mode and first-overtone delta Sct stars form two nearly parallel ridges. The latter ridge is an extension of the PL relation obeyed by first-overtone classical Cepheids. The slopes of the PL relations for delta Sct variables are steeper than those for classical Cepheids, indicating that the continuous PL relation for first-overtone delta Sct variables and Cepheids is non-linear, exhibiting a break at a period of approximately 0.5d. We also report the enhancement of the OGLE collection of Cepheids and RR Lyr stars with newly identified and reclassified objects, including pulsators contained in the recently published Gaia DR3 catalog of variable stars. As a by-product, we estimate the contamination rate in the Gaia DR3 catalogs of Cepheids and RR Lyr variables.2023AcA....73..105Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AcA/73/105CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/AcA/71/189 : OGLE Galactic bulge and disk delta Scuti (Soszynski+, 2021)J/AcA/72/245 : OGLE delta Scuti stars in SMC (Soszynski+, 2022)ftp.astrouw.edu.pl/ogle/ogle4/OCVS/ : OGLE 4 Variable Home Pagehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AcA/73/105https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AcA/73/105http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AcA/73/105https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AcA/73/105https://vizier.iucaa.in/viz-bin/votable?-source=J/AcA/73/105http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AcA/73/105GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AcA/73/105/ident (Identification of stars (26 Aug 2025 version))https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AcA/73/105/ident?https://vizier.iucaa.in/viz-bin/conesearch/J/AcA/73/105/ident?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AcA/73/105/ident?GETtext/xml+votable180.050000true67.5882917-70.21519440.0055555555555555563/517 4/2065-2067 2112 2344 5/8259 8305 8452 8454 8456 9345 9352 9354 9384 9386 9728 9730 6/32797 32799 32817 32819-32820 32823 32825 32828 32831 32841-32842 32848-32850 32852 32861 32864-32865 32869 32871 32875 32877 32880-32881 32885 32887-32889 32894 32971-32972 32976-32977 32981 32989-32991 32999 33013 33015 33020 33023-33025 33027 33029-33031 33033-33035 33152-33154 33158 33163 33167-33168 33170 33172-33173 33176 33179-33180 33184-33186 33188 33190-33191 33193 33196-33197 33203 33216-33217 33224 33226 33233-33234 33240 33367 33537 33539 33545 33812-33814 33821 33828 33830 33832-33834 33836-33837 33840 33842 33845 33849 33857 33864-33865 33892 33894-33895 33900 33904 33906-33907 33909 33913-33915 37028 37032-37033 37036 37092 37094-37096 37099 37101-37102 37106 37376 37384 37388 37391 37399 37406-37407 37414 37420-37422 37425-37426 37443 37530 37540-37542 37548-37550 37552 37562 38917-38918 38944 38946 38948 38951 38954-389563.403972620454305e-19 3.851122986302185e-19https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AcA/73/105?format=asciiOpticaldefaultJ/AcA/73/105/identIdentification of stars (26 Aug 2025 version)recnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar's ID, OGLE-LMC-DSCT-NNNNNmeta.id;meta.maincharTypeType (singlemode, multimode)meta.code;src.varcharRAJ2000Right ascension (J2000.0)pos.eq.ra;meta.mainindexedDEJ2000Declination (J2000)pos.eq.dec;meta.mainOGLE-IVOGLE-IV IDmeta.idcharOGLE-IIIOGLE-III IDmeta.idcharOGLE-IIOGLE-II IDmeta.idcharONameOther designation (GCVS, OGLE-I, MACHO, ASAS-SN)meta.idcharJ/AcA/73/105/dsctParameters of delta Scuti starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintLCPlot the light curvemeta.ref.urlcharStarStar's ID, OGLE-LMC-DSCT-NNNNmeta.id;meta.mainchar<Imag>Intensity mean I-band magnitudemagphot.mag;em.opt.Ifloat<Vmag>? Intensity mean V-band magnitudemagphot.mag;em.opt.VfloatnullableP1Primary perioddtime.perioddoublee_P1Uncertainty of primary perioddstat.errordoubleT0.1Time of maximum brightness (HJD-2450000)dtime.epochdoubleIamp.1I-band amplitude (maximum-minimum)magsrc.var.amplitudefloatR21.1Fourier coefficient R_21phot.mag;arith.ratiofloatphi21.1? coefficient phi_21stat.fit.paramfloatnullableR31.1Fourier coefficient R_31phot.mag;arith.ratiofloatphi31.1? Fourier coefficient phi_31stat.fit.paramfloatnullableP2? Secondary period (if available)dtime.perioddoublenullablee_P2? Uncertainty of secondary perioddstat.errordoublenullableT0.2? Time of maximum brightness (HJD-2450000)dtime.epochdoublenullableIamp.2? I-band amplitude (maximum-minimum)magsrc.var.amplitudefloatnullableR21.2? Fourier coefficient R_21_phot.mag;arith.ratiofloatnullablephi21.2? Fourier coefficient phi_21_stat.fit.paramfloatnullableR31.2? Fourier coefficient R_31_phot.mag;arith.ratiofloatnullablephi31.2? Fourier coefficient phi_31_stat.fit.paramfloatnullableP3? Tertiary period (if available)dtime.perioddoublenullablee_P3? Uncertainty of tertiary perioddstat.errordoublenullableT0.3? Time of maximum brightness (HJD-2450000)dtime.epochdoublenullableIamp.3? I-band amplitude (maximum-minimum)magsrc.var.amplitudefloatnullableR21.3? Fourier coefficient R_21_phot.mag;arith.ratiofloatnullablephi21.3? Fourier coefficient phi_21_stat.fit.paramfloatnullableR31.3? Fourier coefficient R_31_phot.mag;arith.ratiofloatnullablephi31.3? Fourier coefficient phi_31_stat.fit.paramfloatnullableJ/AcA/73/105/remarksRemarks on selected objectsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar's ID, OGLE-LMC-DSCT-NNNNmeta.id;meta.maincharRemRemarkmeta.notechar