J/MNRAS/478/1763ivo://CDS.VizieR/J/MNRAS/478/1763doi:10.26093/cds/vizier.74781763CDSLynch C.R.Murphy T.Lenc E.Kaplan D.L.2024-08-18T20:19:43Z2021-10-01T13:27:33ZCDS support team

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

cds-question@unistra.frmultiple-starsexoplanetsmagnetic-fieldsradio-sourcesLike the magnetized planets in our Solar system, magnetized exoplanets should emit strongly at radio wavelengths. Radio emission directly traces the planetary magnetic fields and radio detections can place constraints on the physical parameters of these features. Large comparative studies of predicted radio emission characteristics for the known population of exoplanets help to identify what physical parameters could be the key for producing bright, observable radio emission. Since the last comparative study, many thousands of exoplanets have been discovered. We report new estimates for the radio flux densities and maximum emission frequencies for the current population of known exoplanets orbiting pre-main-sequence and main-sequence stars with spectral types F-M. The set of exoplanets predicted to produce observable radio emission are Hot Jupiters orbiting young stars. The youth of these systems predicts strong stellar magnetic fields and/or dense winds, which are the key for producing bright, observable radio emission. We use a new all-sky circular polarization Murchison Widefield Array survey to place sensitive limits on 200MHz emission from exoplanets, with 3{sigma} values ranging from 4.0 to 45.0mJy. Using a targeted Giant Metrewave Radio Telescope observing campaign, we also report a 3{sigma} upper limit of 4.5mJy on the radio emission from V830 Tau b, the first Hot Jupiter to be discovered orbiting a pre-main-sequence star. Our limit is the first to be reported for the low-frequency radio emission from this source.2018MNRAS.478.1763Lhttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/MNRAS/478/1763CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/A+A/562/A108 : 150MHz emission from exoplanets (Sirothia+, 2014)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/MNRAS/478/1763https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/MNRAS/478/1763http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/MNRAS/478/1763https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/MNRAS/478/1763https://vizier.iucaa.in/viz-bin/votable?-source=J/MNRAS/478/1763http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/MNRAS/478/1763GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/MNRAS/478/1763/table1 (The properties of the exoplanet included in our sample)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/MNRAS/478/1763/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/MNRAS/478/1763/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/MNRAS/478/1763/table1?GETtext/xml+votable180.050000true242.643.81750.0055555555555555566/311 320 336 679 725 748 790 871 876 918 1050 1075 1275 1292 1597 2110 2416 2472 2497 2532 2551 2579 2584 2711 3344 3350 3663 3876 3906 3932 3968 4082 4136 4321 4429 4528 4698 4881 5009 5067 5170 5309 5475 5522 5553 5572 5667 5718 5730 6017 6058 6181 6237 6349 6381 6539 6638 6791 6821 6831 7036 7162 7208 7240 7746 7917 8197 8237 8357 8477-8478 8785 8825 8843 8992 9173 9355 9459 9483 9524 9653 9662 9753 9811 9843 9893 10079 10407 10730 11087 11326 11455 11589 11732 11910 12083 12146 12312 12465 12486 12612 12644 12853 12899 12983 13143 13250 13569 13680 13702 13808 14116 14329 14412 14419 14434 14466 14525 14548 14555 14567 14682 14732 14746 14762 14779 14816 14825-14826 14839 14914 14929 14932 14942 14960-14961 14963 14973 14993 15029 15107 15110 15112 15121 15143 15153 15160 15174 15345 15683 16432 16534 16627 16652 16707 16768 16783 16823 16947 17172 17341 17496 17641 17730 17954 18028 18172 18223 18441 18496 18614 18747 18766 18821 18835 18880 18953 19619 19669 19815 19904 19912 20145 20186 20338 20382 20659 20790 20872 21003 21176 21406 21461 21838 21876 21906 21956 22001 22034 22036 22040 22078 22168-22169 22208 22505 22590 22654 22878 23030 23201 23322 23414 23681 23895 24019 24039 24057 24178 24312 24409 24530 24752 24815 24831 24981 25055 25135 25401 25433 25446 25466 25593 25604 25725 25875 25939 25950 26142 26183 26242 26521 26575 26706-26707 26771 26790 26901 26938 26978 26997 27018 27060 27164 27220 27616 27750 27975 28085 28130 28571 28763 28767 28779 28821-28822 29017 29022 29513 29520 29541 30013 30015 30170 30240-30241 30295 30378 30419 30436 30444 30447 30450 30456 30526 30707 30770 31494 31541 31606 31641 31813 31860 31874 32217 32561 32659 32727 32748-32749 32848 32930 33042 33182 33200 33243 33258 33430 33510 33630 33717 33923 34069 34674 34860 34905 34951 35079 35210 35339 35362 35442 35532 35839 35907 35954 36092 36196 36453 36506 36667 36697 36794 37018 37047 37247 37923 37955 38233 38414 38452 38545 38644 38728 38998 39257 39280 39364 39512 39646 39926 40066 40101 40143 40194 40320 40400 40442 40661 40862 40985 41058 41432 41446 41515 41607 41724 42001 42044 42248 42318 42386 42510 42760 42808 42934 42936 42970 43012 43150 43180 43203 43228 43233 43247 43336 43432 43541 43586 43677 43733 43813 43818 43847 43911 44223 44228 44243 44365 44378 44398 44471 44672 44740 45168 45364 45865 46100 46111-46112 46215 46297 46306 46421 46800 46843 46873 46967 47000 47154 47167 47307 47330 47456 47476 47550 47590 47681 48105 48111 48114 48165 48358 48402 48415 48519 48530 48545 48729 48945https://cdsarc.cds.unistra.fr/viz-bin/moc/J/MNRAS/478/1763?format=asciiRadiodefaultJ/MNRAS/478/1763/table1The properties of the exoplanet included in our sampleSimbadNameSimbad column added by the CDSmeta.idcharnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintNamePlanet namemeta.id;meta.maincharRAJ2000Right ascension (J2000)pos.eq.ra;meta.mainDEJ2000Declination (J2000)pos.eq.dec;meta.mainMpPlanetary mass relative to Jupiter(1.898187x10+27kg)phys.massfloatRpPlanetary radius relative to Jupiter(7.1492x10+7m)phys.angSize;srcfloataSemi-major axisAUphys.size.smajAxisfloatdDistance to star-planet systempcpos.distancefloattAge of the host starGyrtime.agefloatnuExpected maximum emission frequencyMHzem.freqintSnukExpected radio flux density (kinetic energy case)mJyphot.flux.density;em.radiofloatSnumExpected radio flux density (magnetic energy case)mJyphot.flux.density;em.radiofloatl_S150Limit flag on S150meta.code.errorcharS150? Best observational 3-sigma limit at 150MHz in the literaturephot.flux.density;em.radio.100-200MHzfloatnullabler_S150Reference for 3-sigma limit (1)meta.ref;pos.framechar