J/AJ/160/131ivo://CDS.VizieR/J/AJ/160/131doi:10.26093/cds/vizier.51600131CDSBellotti S.Zabludoff A.I.Belikov R.Guyon O.Rathi C.2021-06-17T13:05:24Z2020-11-30T07:50:22ZCDS support team

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

cds-question@unistra.frmultiple-starsinfrared-photometryvisible-astronomyWide-band photometrytrigonometric-parallaxstellar-spectral-typesexoplanetsWe investigate directly imaging exoplanets around eclipsing binaries using the eclipse as a natural tool for dimming the binary and thus increasing the planet to star brightness contrast. At eclipse, the binary becomes pointlike, making coronagraphy possible. We select binaries where the planet-star contrast would be boosted by >10x during eclipse, making it possible to detect a planet that is >~10x fainter or in a star system that is ~2-3x more massive than otherwise. Our approach will yield insights into planet occurrence rates around binaries versus individual stars. We consider both self-luminous (SL) and reflected light (RL) planets. In the SL case, we select binaries whose age is young enough so that an orbiting SL planet would remain luminous; in U Cep and AC Sct, respectively, our method is sensitive to SL planets of ~4.5 and ~9 M_J_ with current ground- or near-future space-based instruments and ~1.5 and ~6 M_J_ with future ground-based observatories. In the RL case, there are three nearby (<~50 pc) systems-V1412 Aql, RR Cae, and RT Pic-around which a Jupiter-like planet at a planet-star separation of >~20mas might be imaged with future ground- and space-based coronagraphs. A Venus-like planet at the same distance might be detectable around RR Cae and RT Pic. A habitable Earth-like planet represents a challenge; while the planet-star contrast at eclipse and planet flux are accessible with a 6-8m space telescope, the planet-star separation is 1/3-1/4 of the angular separation limit of modern coronagraphy.2020AJ....160..131Bhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/160/131CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toI/345 : Gaia DR2 (Gaia Collaboration, 2018)J/A+A/417/263 : Catalogue of Algol type binary stars (Budding+, 2004)J/A+A/446/785 : Catalogue of eclipsing variables (Malkov+, 2006)J/AN/334/860 : Catalogue of eclipsing variables. Version 2 (Avvakumova+, 2013)J/AJ/155/177 : Obliquities of planetary & eclipsing binary systems (Dai+,2018)J/A+A/624/A68 : 47 single-line eclips. bin. BEBOP velocities (Martin+, 2019)J/AJ/157/174 : Transiting planets Kepler-47 circumbinary system (Orosz+, 2019)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/160/131https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/160/131http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/160/131https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/160/131https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/160/131http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/160/131GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/160/131/tablea1 (Eclipsing binary systems with primary minimum depth greater than or equal to 2.5.)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/160/131/tablea1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/160/131/tablea1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/160/131/tablea1?GETtext/xml+votable180.050000true1.04566555661.70218750.0055555555555555566/928 1003 1010 1105 1153 1163 1179 1213 1593 1687 1704 1942 2119 2394 2398 2402 2459 2560 2627 2710 2895 2996 3009 3022 3026 3054 3250 3258 3504 3577 3592 3593 3634 3811 4028 4242 4244 4589 4698 5558 6621 6959 7422 7828 8596 9472 11657 12466 12703 12713 12791 12839 12876 12879 12927 12929 12958 12996 13015 13024 13032 13117 13259 13277 13282 13286 13753 13858 13878 13936 13941 13980 13994 14003 14056 14111 14140 14143 14169 14174 14217 14230 14280 14309 14388 14428 14435 14456 14512 14517 14544 14570 14628 14635 14647 14666 14722 14724 14727 14733 14739 14798 14964 15115 15316 15327 15394 15539 15608 15672 15679 16072 16608 17759 19331 19598 20562 20826 20844 20867 21657 21685 21891 21900 21980 22021 22106 22236 22238 22328 22454 22531 22753 22840 22913 22961 23300 23607 23803 23818 23839 23863 23914 23949 24372 24878 24948 24990 26049 27371 28692 28701 28737 28741 28743 28748 28764 28771 28829 28852 28884 28899 28991 28992 29019 29040 29057 29067 29183 29246 29257 29317 29335 29380 29385 29483 29869 29882 29883 30193 30195 30221 30226 30232 30247 30287 30291 30321 30329 30440 30446 30488 30495 30617 30676 31574 31635 31748 31781 31804 31972 32006 32016 32021 32092 32193 32205 32231 32931 33317 33378 33713 34026 36029 36129 36234 37131 37329 37331 37345 37362 37915 37918 37922 37923 37982 38215 38409 38468 39205 39459 39553 39584 39903 39918 40481 40492 40496 40497 40500 40596 40661 40682 40870 40900 41074 41456 41465 41511 41575 41797 41823 41826 41898 41954 42046 42059 42132 42151 42279 42338 42342 42353 42395 42432 42437 42489 42490 42502 42635 42834 42877 43080 43083 43118 43207 43898 46179 46725 47115 47540 47546 47845 47847 47852 48547 48831https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/160/131?format=asciiOpticalInfrareddefaultJ/AJ/160/131/tablea1Eclipsing binary systems with primary minimum depth greater than or equal to 2.5.ClassEvolutionary classmeta.code.classcharSpTSpectral type (4)src.spTypecharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNameGeneral Catalog of Variable Stars designationmeta.id;meta.maincharRAJ2000Hour of Right Ascension (J2000) (1)pos.eq.ra;meta.mainDEJ2000Degree of Declination (J2000) (1)pos.eq.dec;meta.mainGaiaDisplay data from Gaia DR2 (I/345) within 1"meta.ref.urlintnullablemag[6.5/20.4] Magnitude at maximum brightnessmagphot.magfloatDmag[2.4/10.8] Depth of primary minimummagphot.mag;stat.minfloatFiltPhotometric filter used to obtain the light curveinstr.setup;instr.filtercharRefReference of target, maximum brightness, primary minimum, and filter (2)meta.refcharFlag[0/1] Discrepancy flag (3)meta.code.errorintPar[0.08/47.2]? Parallax, Gaia DR2maspos.parallax.trigfloatnullableLbol[0.28/632]? Maximum bolometric luminosity, Gaia DR2solLumphys.luminosityfloatnullableSimbadSimbad column added by the CDSmeta.ref.urlchar