VI/151ivo://CDS.VizieR/VI/151CDSGriessmeier J.-M.2017-09-14T12:35:11Z2017-09-14T12:44:44ZCDS support team

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

cds-question@unistra.frmultiple-starssolar-system-planetsradio-sourcesThe intensity of Jupiter's auroral radio emission quickly gave rise to the question whether a comparable coherent emission from the magnetosphere of an exoplanet could be detectable. An exoplanetary radio emission would have to be at least 1000 times more intense than Jupiter's emission to be detectable with current radio telescopes. Theoretical models suggest that, at least in certain cases, the radio emission of giant exoplanets may indeed reach the required intensity. At the same time, in order to generate such an emission, an exoplanet would have to have a sufficiently strong intrinsic planetary magnetic field. Extrasolar planets are indeed expected to have a planetary magnetic field, but to date, their magnetic field has never been detected. We will show that the most promising technique to observe exoplanetary magnetic fields is indeed to search for the planetary auroral radio emission. The detection of such an emission would thus constitute the first unambiguous detection of an exoplanetary magnetic field. We will review recent theoretical studies and discuss their results for the two main parameters, namely the maximum emission frequency and the intensity of the radio emission. The predicted values should allow the detection using modern low-frequency radio telescopes. We will present an ongoing observation program with the Low Frequency Array (LOFAR), which has the potential to detect exoplanetary radio emission.2017yCat.6151....0Ghttps://cdsarc.cds.unistra.fr/viz-bin/cat/VI/151CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toJ/ApJ/612/511 : Exoplanet radio emission (Lazio+, 2004)J/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=VI/151https://vizier.iucaa.in/viz-bin/VizieR-2?-source=VI/151http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=VI/151https://vizier.cds.unistra.fr/viz-bin/votable?-source=VI/151https://vizier.iucaa.in/viz-bin/votable?-source=VI/151http://vizieridia.saao.ac.za/viz-bin/votable?-source=VI/151GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table VI/151/table1 (Expected exoplanetary radio emission frequencies and flux densities)https://vizier.cds.unistra.fr/viz-bin/conesearch/VI/151/table1?https://vizier.iucaa.in/viz-bin/conesearch/VI/151/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/VI/151/table1?GETtext/xml+votable180.050000true185.179291717.79286110.0055555555555555565/7205 7216 7217 6/267 311 320 341 368 413 431 437 474 679 717 725 737 748 790 871 876 913 1029 1040 1050 1061 1063 1075 1275 1292 1544 1597 1770 2043 2110 2152 2254 2297 2308 2312 2335 2416 2472 2497 2551 2577 2579 2584 2596 2711 2737 2953 2971 3015 3118 3344 3406 3536 3663 3876 3906 3932 3968 3979 4082 4104 4136 4145 4241 4271 4272 4285 4298 4321 4429 4441 4444 4528 4574 4632 4651 4659 4698 4699 4730 4775 4867 4881 4913 4990 5009 5067 5170 5309 5475 5488 5522 5553 5556 5572 5667 5718 5730 5815 6006 6017 6058 6181 6219 6237 6298 6381 6539 6638 6791 6821 6831 7036 7136 7208 7240 7402 7746 7760 7917 8197 8237 8296 8357 8384 8466 8477 8478 8671 8785 8825 8843 8862 9061 9173 9350 9355 9403 9459 9482 9483 9508 9524 9662 9753 9811 9843 9893 9934 10079 10118 10278 10654 10701 10730 10953 11035 11087 11267 11326 11352 11455 11473 11589 11636 11699 11732 11910 12024 12030 12056 12082 12083 12146 12186 12306 12424 12465 12482 12502 12592 12600 12612 12644 12655 12853 12862 12899 12958 12983 13044 13143 13250 13439 13442 13464 13569 13643 13680 13688 13702 13808 14116 14191 14275 14278 14284 14317 14412 14416 14419 14434 14466 14516 14522 14525 14539 14548 14555 14567 14591 14682 14735 14756 14762 14763 14768 14777 14779 14780 14816 14818 14825 14826 14886 14896 14914 14918 14929 14930 14932 14933 14936 14937 14939 14940 14957 14961 14963 14968 14970 14973 15029 15040 15107 15110 15112 15119 15121 15126 15129 15131 15140 15143 15149 15153 15162 15174 15273 15345 15550 15848 16035 16213 16289 16432 16534 16627 16652 16667 16689 16707 16783 16823 16947 16995 17040 17172 17266 17341 17344 17496 17551 17587 17641 17730 17731 17753 17764 17819 17888 17954 18028 18172 18208 18223 18441 18496 18510 18539 18569 18614 18666 18688 18747 18766 18800 18821 18835 18943 18953 19371 19476 19619 19669 19782 19815 19904 19912 20072 20125 20186 20206 20338 20382 20476 20505 20557 20582 20746 20872 20886 20973 21003 21026 21079 21121 21176 21221 21223 21326 21406 21439 21473 21484 21531 21660 21838 21876 21906 21941 21989 22001 22015 22034 22036 22040 22065 22078 22168 22169 22208 22252 22396 22505 22518 22590 22654 22773 22837 22878 22895 22963 23030 23201 23322 23363 23414 23540 23583 23646 23681 24019 24039 24057 24178 24227 24330 24409 24428 24580 24713 24752 24815 24831 24858 24924 24981 25055 25114 25132 25135 25140 25153 25401 25424 25446 25466 25593 25604 25725 25875 25939 25950 25989 26062 26112 26120 26183 26242 26278 26521 26555 26575 26706 26707 26790 26901 26918 26938 26975 26977 26978 26992 26997 27018 27060 27078 27088 27164 27220 27488 27616 27682 27750 27881 27975 28040 28044 28085 28130 28274 28400 28548 28571 28711 28716 28727 28728 28729 28731 28735 28762 28763 28767 28770 28776 28777 28779 28780 28817 28854 28857 28873 28889 28921 29012 29017 29022 29045 29246 29289 29402 29513 29520 29541 29683 30009 30013 30015 30116 30157 30170 30240 30241 30278 30293 30295 30344 30378 30419 30436 30444 30447 30450 30451 30456 30466 30526 30541 30707 30770 30771 30943 31216 31428 31450 31494 31541 31606 31641 31813 31858 31860 31874 32259 32491 32501 32561 32564 32575 32640 32643 32659 32727 32749 32848 32930 32986 33042 33157 33182 33200 33243 33258 33377 33430 33456 33510 33608 33630 33705 33717 33798 33813 33923 33966 33974 34054 34069 34181 34301 34390 34446 34471 34674 34708 34767 34773 34812 34848 34860 34902 34905 34920 34951 35079 35210 35268 35339 35362 35415 35442 35532 35590 35814 35839 35907 35954 35968 36078 36092 36142 36165 36196 36453 36497 36506 36635 36667 36697 36957 37018 37047 37175 37246 37247 37461 37477 37573 37691 37923 37954 37955 38162 38233 38238 38311 38359 38414 38461 38464 38545 38682 38728 38742 38807 38937 38975 38998 39007 39044 39187 39257 39280 39364 39446 39504 39542 39646 39675 39926 40066 40101 40143 40220 40312 40320 40400 40442 40513 40661 40692 40862 40905 40985 41058 41204 41211 41432 41446 41515 41607 41627 41710 41724 41752 41759 41912 41941 42001 42021 42044 42101 42205 42221 42281 42318 42333 42386 42459 42510 42570 42661 42714 42760 42808 42841 42934 42955 42970 42980 42981 42983 42986 43012 43022 43150 43180 43203 43228 43233 43247 43336 43374 43432 43442 43464 43541 43639 43677 43775 43813 43818 43840 43845 43847 43911 43960 44088 44132 44139 44223 44228 44243 44363 44365 44369 44378 44379 44398 44402 44471 44672 44685 44740 44921 45108 45168 45258 45364 45378 45489 45624 45668 45682 45717 45721 45766 45865 46100 46111 46112 46215 46237 46287 46297 46306 46421 46429 46437 46632 46678 46775 46800 46843 46873 46939 46967 47000 47154 47167 47186 47205 47287 47307 47330 47456 47476 47550 47590 47681 47780 47930 48082 48105 48108 48109 48111 48117 48165 48338 48353 48358 48402 48415 48462 48519 48530 48545 48627 48652 48729 48945 49053 49103https://cdsarc.cds.unistra.fr/viz-bin/moc/VI/151?format=asciiRadiodefaultVI/151/table1Expected exoplanetary radio emission frequencies and flux densitiesSimbadNameSimbad column added by the CDSmeta.idchar_DEfrom Simbad (declination part)degpos.eq.dec;meta.mainrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintPlanetPlanet namemeta.id;meta.maincharrminPeriastron distanceAUpos.distance;src.orbitaldoublefc1Expected maximum emission frequency (case 1) (1)MHzem.freqfloatPhi1Expected maximum radio flux density at Earth (case 1) (1)mJyphot.flux.density;em.radiofloatfc2? Expected maximum emission frequency (case 2) (1)MHzem.freqfloatnullablePhi2? Expected maximum radio flux density at Earth (case 2) (1)mJyphot.flux.density;em.radiofloatnullablefc3? Expected maximum emission frequency (case 3) (1)MHzem.freqfloatnullablePhi3? Expected radio flux density (case 3) (1)mJyphot.flux.density;em.radiofloatnullable_RAfrom Simbad (right ascension part)degpos.eq.ra;meta.main