J/MNRAS/516/2080ivo://CDS.VizieR/J/MNRAS/516/2080doi:10.26093/cds/vizier/bg-g4-210CDSBarac N.Bedding T.R.Murphy S.J.Hey D.R.2026-08-03T07:31:43Z2025-09-19T15:51:08ZCDS support team

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

cds-question@unistra.frvariable-starsphotometryvisible-astronomystellar-distanceextinctionWe have used NASA's TESS mission to study catalogued {delta} Scuti stars. We examined TESS light curves for 434 stars, including many for which few previous observations exist. We found that 62 are not {delta} Scuti pulsators, with most instead showing variability from binarity. For the 372 {delta} Scuti stars, we provide a catalogue of the period and amplitude of the dominant pulsation mode. Using Gaia DR3 parallaxes, we place the stars in the period-luminosity (P-L) diagram and confirm previous findings that most stars lie on a ridge that corresponds to pulsation in the fundamental radial mode, and that many others fall on a second ridge that is a factor two shorter in period. This second ridge is seen more clearly than before, thanks to the revised periods and distances. We demonstrate the value of the P-L diagram in distinguishing {delta} Scuti stars from short-period RR Lyrae stars, and we find several new examples of high-frequency {delta} Scuti stars with regular sequences of overtone modes, including XX Pyx and 29 Cyg. Finally, we revisit the sample of {delta} Scuti stars observed by Kepler and show that they follow a tight period-density relation, with a pulsation constant for the fundamental mode of Q = 0.0315 d.2022MNRAS.516.2080Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/516/2080CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/MNRAS/491/3586 : 611 {gamma} Doradus stars Kepler data (Li+, 2020)J/A+A/477/907 : Beta Cephei stars in the ASAS-3 data. I. (Pigulski+, 2008)J/A+AS/144/469 : Delta Scuti stars (Rodriguez+, 2000)J/AJ/145/132 : New catalog of 1578 {delta} Scuti stars (Chang+, 2013)J/AJ/155/45 : Metal-rich RRc stars in the Carnegie RR Lyrae SurveyJ/ApJS/258/8 : LCs of RR Lyrae stars from TESS (Molnar+, 2022)J/PASP/133/H4201 : Times of maxima for 23 delta Scuti stars (Poro+, 2021)I/355 : Gaia DR3 Part 1. Main source (Gaia Collaboration, 2022)I/345 : Gaia DR2 (Gaia Collaboration, 2018)II/366 : ASAS-SN catalog of variable stars (Jayasinghe+, 2018-2020)IV/38 : TESS Input Catalog - v8.0 (TIC-8) (Stassun+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/516/2080https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/516/2080http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/516/2080https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/516/2080https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/516/2080http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/516/2080GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/516/2080/table1 (Compilation of 62 stars identified as non-{delta} Sct stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/2080/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/2080/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/2080/table1?GETtext/xml+votable180.050000true6.3506006-46.92418140.005555555555555556Cone search capability for table J/MNRAS/516/2080/table2 (Properties of {delta} Sct stars in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/516/2080/table2?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/516/2080/table2?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/516/2080/table2?GETtext/xml+votable180.050000true1.757686764.73472390.0055555555555555566/60 131 651 690 789 1283 1539 1555 1684 1729 1768 2038 2053 2154 2336 2363 2385 2449 2630 2645 2752 2839 3032 3043 3070 3096 3098 3138 3449 3606 3849 3873 3876 3962 4013 4115 4230 4250 4548 5044 5185 5195 5372 5406 5540 5630 5791 5805 5819 5825 5872 5893 5993 6008 6108 6220 6354 6442 6488 6540 6593 6601 6709 6776 6791 6934 7138 7267 7340 7342 7391 7459 7591 7610 7626 8064 8076 8690 8767 9293 9540 9618 9857 10036 10082 10291 10293 10396 10562 10568 10695 10741 10804 10835 10907 10923 10990 11029 11349 11498-11499 11775 11951 12092 13004 13048 13054 13541 13646 13769 13780 13901 13960 14013 14194 14435 14441 14446 14509 14521 14554 14584 14630 14640 14645 14832 14994 15305 15414 15554 15593 15621 15800 15826 15890 15983 15996-15997 16212 16351 16435 16493 16685 16915 17311 17608 17985 17996 18431 19818 19922 20313 20519 20543 20857 20913 20943 21075 21321 21432 21440 21506 21536 21788 21866 21911 21917 21939 21946 22080 22106 22113 22213 22490 22596 22601 22675 22711 22786 22861 22921 22947 22995 23086 23183 23260 23514 23523 23526 23532 23538 23555 23581 23639 24727 24810 24839 24977 25121 25455 25481 25533 25600 26194 26364 26434 26446 27735 27906 28042 28137 28142 28480 28482 28490 28590 28802 28807 28848 32071 32110 32312 32485 32536 32648 32662 32789 32793 32816 32831 32845 32865 32985 33157 33224 33227 33326 33332 33469 33517 33535 34114 34278 34304 34448 34537 34560 34680 34752 34858 34997 35082 35104 35132 35149 35249 35264 35378 35426 35434 35447 35483 35588 35635 35849 36065 36372 36534 36650 36980 37012 37060 37120 37345 37372 37378 37498 37546 37582 37584 37586 37593 37683 37810 37827 37872 37897 37935 37970 38074 38077 38087 38174-38175 38238 38265 38279 38310 38450 38533 38535 38563 38667 38678 38775 38783 38785 38831 38942 39013 39222 39263 39429 39526 39596 39691 39730 39783 39860 39862 40020 40029 40165 40266 40393 40438 40462 40486 40593 40813 40872 40900 40963 41015 41130 41143 41163 41364 41385 41427 41472 41503 41565 41613 41661 41669 41731 41740 41760-41762 41769 41803 41838 41869 42007 42399 42421 42477 42587 42694 42807 43113 43130 43162 43171 43244 43266 43314 43386 44228 44564 44598 45056-45057 45203 45209 45215 45283 45296 45380 45543 45676 45858-45859 45881 45941 45983 46079 46181 46234 46238 46250 46419 46425 46630 46800 46911 46939 46954 46979 47110 47168 47180 47263 47409 47498 47626 47739 47760 47763 47768 47836 47893 48041 48170 48245 48299https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/516/2080?format=asciiOpticaldefaultJ/MNRAS/516/2080/table1Compilation of 62 stars identified as non-{delta} Sct starsrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHD? HD designation number as HD NNNNNN (HD)meta.id.associntnullableNameStar name (Name)meta.idcharTICTIC number identifier (TIC)meta.id;meta.mainlongr_Name[0/1]? Flag indicates reference (R2000) (1)meta.ref;pos.frameintnullableR2000/C2013Display R2000 or C2013 catalogs datameta.ref.urlcharSimbadSimbad column added by the CDSmeta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.mainJ/MNRAS/516/2080/table2Properties of {delta} Sct stars in our samplerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintHD? HD designation number as HD NNNNNN (HD)meta.id.associntnullableSimbadSimbad column added by the CDSmeta.ref.urlcharNameStar name (Name)meta.idcharTICTIC number identifier (TIC)meta.id;meta.mainlongr_Name[0/1]? Flag indicates reference (R2000) (1)meta.ref;pos.frameintnullablefcat? Published dominant frequency from previous references (fcat)d**-1em.freq;src.varfloatnullablef1Frequency of the dominant frequency measured with our TESS light curves (f1)d**-1em.freq;src.varfloata1Amplitude of the dominant frequency measured with our TESS light curves (a1)src.var.amplitudefloatDist? Star distance based on values from GaiaDR3 (Gaia Collaboration Cat. I/355) and computed as explianed in section 4 P-L relation (dist)pcpos.distancefloatnullablee_Dist? Mean uncertainty of Dist (e_dist)pcstat.errorfloatnullableAVInterstellar dust extinction calculated by fitting the star SED (AV) (2)magphys.absorption;meta.modelledfloate_AVMean uncertainty of AV (e_AV)magstat.errorfloatVMagAbsolute V-band magnitude related to period, distance, parallax and AV values as equations 1, 3 and 4 of the section 4 P-L relation show (MV)phys.magAbs;em.opt.V;meta.modelledfloate_VMagMean uncertainty of VMag (e_MV)stat.errorfloatR2000/C2013Display R2000 or C2013 catalogs datameta.ref.urlchar_RARight Ascension (J2000) from SIMBAD (not part of the original data)degpos.eq.ra;meta.main_DEDeclination (J2000) from SIMBAD (not part of the original data)degpos.eq.dec;meta.main