J/AJ/167/1ivo://CDS.VizieR/J/AJ/167/1doi:10.26093/cds/vizier.51670001CDSWang G.Espinoza N.2024-11-06T20:19:16Z2024-05-13T07:56:21ZCDS support team

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

cds-question@unistra.frexoplanetsphotometryvisible-astronomyThe phenomenon of transit depth variability offers a pathway through which processes such as exoplanet atmospheric activity and orbital dynamics can be studied. In this work we conduct a blind search for transit depth variations among 330 known planets observed by the Transiting Exoplanet Survey Satellite within its first four years of operation. Through an automated periodogram analysis, we identify four targets (KELT-8b, HAT-P-7b, HIP 65 Ab, and TrES-3b) that appear to show significant transit depth variability. We find that KELT-8b's transit depth variability likely comes from contaminating flux from a nearby star, while the apparent variabilities of HIP65Ab and TrES-3b are probable artifacts due to their grazing orbits. HAT-P-7b indicates signs of variability that possibly originate from the planet or its host star. A population-level analysis does not reveal any significant correlation between transit depth variability and the effective temperature and mass of the host star; such correlation could arise if stellar activity was the cause of depth variations via the transit light source effect. Extrapolating our ~1% detection rate to the upcoming Roman mission, predicted to yield of order 100000 transiting planets, we expect that ~1000 of these targets will be found to exhibit significant transit depth variability.2024AJ....167....1Whttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/167/1CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/478/507 : Distances & atmospheric parameters MSU stars (Morales+, 2008)J/A+A/628/A115 : WASP-12, CoRoT-1 and TrES-3 light curves (von Essen+, 2019)J/ApJS/259/62 : TESS transit timing of hot Jupiters (Ivshina+, 2022)J/AJ/163/228 : Limb-darkening coeffi of 176 TESS exoplanets (Patel+, 2022)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/167/1https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/167/1http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/167/1https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/167/1https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/167/1http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/167/1GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/167/1/table3 (Results for all planets in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/167/1/table3?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/167/1/table3?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/167/1/table3?GETtext/xml+votable180.050000true133.149213128.33082080.0055555555555555566/437 790 913 1066 1292 2335 2711 2953 3344 3536 3876 4145 4241 4272 4280 4590 4624 4632 4704 4730 4799 4867 4990 5009 5170 5186 5475 5730 6017 6058 6181 6217 6349 6381 6539 6638 7036 7208 7447 7502 7649 7652 7777 7917 7934 8825 8992 9173 9355 9482 9524 9653 9811 10066 10118 10654 10701 10730 10953 11087 11279 11455 11686 11703 11730 11908 11923 12342 12398 12486 12644 12853 12862 12935 12983 13044 13143 13250 13439 13569 13702 13941 14054 14278 14446 14598 14667 14772 14825-14826 14886 14896 14914 14936 14961 14971 14993 15029 15040 15112 15122 15129 15140 15143 15153 15160 15162 15169 15218 15550 15553 15805 15927-15928 15950 16022 16074 16258 16301 16316 16347 16366 16395 16405 16432 16534 16768 16947 17040 17162 17172 17226 17344 17753 17819 17851 17865 18093 18208 18223 18452 19024 19829 20116 20476 20501 20565 20648 20659 20682 20780 20790 20872 21026 21176 21206 21254 21820 21885 21989 22001 22065 22168-22169 22396 22505 22519 22661 22816 22963 23387 23867 24039 24057 24122 24409 24428 24479 24622 24752 24815 24981 25132 25153 25193-25194 25604 26019 26538 26727 26771 26844 26918 27021 27056 27488 27780 28433 28548 30009 30466 30485 32155 32217 32387 32564 32640 32659 32727 32748-32749 32811 32848 32862 33157 33200 33220 33283 33285 33470 33719 33723 33798 34370 34471 34526 34566 34656 34708 34751 34755 34812 34847-34848 34860 34898 34940 34957 34986 35057 35210 35456 35993 36116 36142 36165 36197 36497 36667 36794 36893 37274 37453 37519 37751 38199 38233 38376 38381 38452 38682 38842 38946 38982 39007 39474 39487 39512 39542 39611 39652 39673 39812 39826 39851 40014 40022 40189 40194 40220 40250-40251 40320 40554 40573 40862 41179 42001 42659 42936 43248 43336 43525 43544 43625 43656 43733 43775 43960 44041 44648 44672 44685 45380 45382 45800 45855 45922 46121 46316 46421 46429 46437 46771 47000 47167-47168 47186 47310 47330 47449 48178 48338 48353 48358https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/167/1?format=asciiOpticaldefaultJ/AJ/167/1/table3Results for all planets in our sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameName of the planetmeta.id;meta.maincharDepth[239/98012] Median transit depth(10-6)phys.absorption.opticalDepth;stat.medianinte_Depth[47/11796] Uncertainty in Depth (1)(10-6)stat.error;phys.absorption.opticalDepthintAbsVar[29/8389] Standard deviation of transit depths (1)(10-6)stat.stdevintNR? Nested ratiostat.fit.omcchare_NR? Uncertainty in NRstat.errorcharTransits[5/216] Number of transitsmeta.numberint_RAPosition from Simbad (right ascension part)degpos.eq.ra;meta.main_DEPosition from Simbad (declination part)degpos.eq.dec;meta.main