J/ApJ/766/9ivo://CDS.VizieR/J/ApJ/766/9doi:10.26093/cds/vizier.17660009CDSShkolnik E.L.2018-01-04T08:21:52Z2014-12-04T15:44:23ZCDS support team

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

cds-question@unistra.frultraviolet-photometrysolar-system-planetsmultiple-starsUsing the far-UV (FUV) and near-UV (NUV) photometry from the NASA Galaxy Evolution Explorer (GALEX), we searched for evidence of increased stellar activity due to tidal and/or magnetic star-planet interactions (SPI) in the 272 known FGK planetary hosts observed by GALEX. With the increased sensitivity of GALEX, we are able probe systems with lower activity levels and at larger distances than what has been done to date with X-ray satellites. We compared samples of stars with close-in planets (a<0.1AU) to those with far-out planets (a>0.5AU) and looked for correlations of excess activity with other system parameters. This statistical investigation found no clear correlations with a, M_p_, or M_p_/a, in contrast to some X-ray and CaII studies. However, there is tentative evidence (at a level of 1.8{sigma}) that stars with radial-velocity-(RV)-detected close-in planets are more FUV-active than stars with far-out planets, in agreement with several published X-ray and Ca II results. The case is strengthened to a level of significance to 2.3{sigma} when transit-detected close-in planets are included. This is most likely because the RV-selected sample of stars is significantly less active than the field population of comparable stars, while the transit-selected sample is similarly active. Given the factor of 2-3 scatter in fractional FUV luminosity for a given stellar effective temperature, it is necessary to conduct a time-resolved study of the planet hosts in order to better characterize their UV variability and generate a firmer statistical result.2013ApJ...766....9Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJ/766/9CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toII/312 : GALEX-DR5 (GR5) sources from AIS and MIS (Bianchi+ 2011)V/130 : Geneva-Copenhagen Survey of Solar neighbourhood III (Holmberg+, 2009)J/ApJS/211/9 : Variability in UV line emission of F-M stars (Loyd+, 2014)J/ApJS/204/24 : Kepler planetary candidates. III. (Batalha+, 2013)J/A+A/540/A82 : CaIIHK emission in stars with planets (Krejcova+, 2012)J/PASP/123/412 : Exoplanet Orbit Database (Wright+, 2011)J/A+A/533/A90 : Radial velocity curves of HD 132563 (Desidera+, 2011)J/A+A/517/L1 : Radial velocities of WASP-8b planet (Queloz+, 2010)J/AJ/139/1338 : UV-selected stars in Tau and Upper Sco (Findeisen+, 2010)J/MNRAS/389/869 : Multiplicity among bright stellar systems (Eggleton+, 2008)J/AJ/135/785 : SDSS-DR5 low-mass star spectroscopic sample (West+, 2008)J/A+A/480/L33 : Radial velocities of HD 4113 and HD 156846 (Tamuz+, 2008)J/ApJ/687/1264 : Age estimation for solar-type dwarfs (Mamajek+, 2008)J/A+A/450/735 : Effective temperatures and radii of stars (Masana+, 2006)J/ApJ/646/523 : Exoplanet systems with stellar companions (Raghavan+, 2006)http://mastweb.stsci.edu/gcasjobs/ : GALEX archive Casjobshttp://galex.stsci.edu/galexview/ : GALEX MAST home pagehttp://www.exoplanets.org/ : Exoplanet Orbit databasehttps://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJ/766/9https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJ/766/9http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJ/766/9https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJ/766/9https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJ/766/9http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJ/766/9GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/ApJ/766/9/table1 (Planet and stellar data for GALEX detected stars)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/ApJ/766/9/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/ApJ/766/9/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/ApJ/766/9/table1?GETtext/xml+votable180.050000true1.5798978-49.07518940.0055555555555555566/311 431 679 725 748 790 876 1275 1597 2110 2152 2374 2497 2584 2711 3344 3979 4285 4429 4528 4881 4990 5009 5067 5309 5475 5522 5572 5667 5718 5815 6006 6017 6181 6381 6539 6638 6760 6791 6821 7036 7136 7208 7240 7746 8197 8237 8357 8478 8602 8785 8825 9173 9350 9355 9403 9459 9482 9483 9524 9662 9753 9811 9843 9893 10079 10278 10654 10953 11087 11267 11326 11473 11589 12024 12146 12306 12424 12482 12502 12612 12644 12853 13143 13439 13569 13808 14591 14782 14826 14886 14923 14936 14960 15029 15104 15115 15119 15120 15134 15140 15169 15172 15218 15273 15550 15950 16405 16432 16627 16652 16707 16823 16947 17172 17226 17266 17341 17496 17587 17641 17730 17731 17954 18028 18093 18172 18441 18747 18821 18835 18953 19619 19815 19904 19912 20072 20116 20145 20186 20339 20382 20746 21003 21254 21326 21906 21989 22001 22590 23201 23322 23414 24924 25114 25132 25194 25446 25721 25875 25885 25939 25950 26062 26183 26242 26575 26706 26707 26790 26901 26938 26978 26997 27018 27060 27088 27164 27220 27616 27682 27750 27975 28044 28085 28130 28274 28400 28571 29291 30170 30278 30378 31374 31606 31641 31860 32509 32727 32749 32848 33042 33182 33243 33258 33430 33510 33630 33717 33813 33923 33974 34773 34951 35210 35362 35392 35415 35442 35907 35954 35968 36092 36142 36506 36667 36697 37018 38162 38728 38807 40400 40442 40692 40862 41058 42248 43625 43775 43813 43911 43960 44243 44648 44740 45168 45364 45624 45922 46111 46215 46297 46306 46421 46429 46843 46967 47550 47930 48105 48108 48109 48519 48545 486527.447298006782415e-19 1.4134638842407062e-18https://cdsarc.cds.unistra.fr/viz-bin/moc/J/ApJ/766/9?format=asciiUVdefaultJ/ApJ/766/9/table1Planet and stellar data for GALEX detected starsSimbadNameSimbad column added by the CDSmeta.idchare_FNUV? Uncertainty in FNUVuJystat.errorfloatnullablerecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintStarStar identifier; ordered by RAmeta.id;meta.maincharPl[b-e] Planet identifiermeta.code.multipcharMethDiscovery method (RV or "Tran.")meta.code;obschara[0.01/6.8] Semimajor axis (1)AUphys.size.smajAxisfloatMp[0/26.4]? Mass of planet (1)(1.898187x10+27kg)phys.massfloatnullableTeff[4545/6600] Effective temperature (1)Kphys.temperature.effectiveintSrvGALEX survey (AIS, GII, MIS or NGS; see II/312)meta.notecharl_FFUV[<] Limit flag on FFUVmeta.code.errorcharFFUV[1/1018]? GALEX FUV band (1350-1750{AA}) flux densityuJyphot.flux;em.UVfloatnullablef_FFUV[s] Indicates FFUV is saturated (2)meta.codechare_FFUV[0.1/28]? Uncertainty in FFUVuJystat.errorfloatnullableFNUV? GALEX NUV band (1750-2750{AA}) flux densityuJyphot.flux;em.UVfloatnullablef_FNUV[s] Indicates FNUV is saturated (2)meta.codecharl_logLFLimit flag on logLFmeta.code.errorcharlogLF[-10.1/-4.5]? Log of FUV to bolometric luminosities (3)phys.luminosity;arith.ratiofloatnullablef_logLF[i] Indicates logLF is incomplete (3)meta.codechare_logLF? Uncertainty in logLFstat.errorfloatnullablelogLN[-7.5/-2.9]? Log of NUV to bolometric luminosities (3)phys.luminosity;arith.ratiofloatnullablef_logLN[i] Indicates logLN is incomplete (3)meta.codechare_logLN? Uncertainty in logLNstat.errorfloatnullableW11Cross-match within 3" with the exoplanet orbit database (Wright et al., 2011, J/PASP/123/412)meta.ref.urlintnullableNoteAdditional notes (4)meta.notechar_RAPositions from SIMBAD database (right ascension part)degpos.eq.ra;meta.main_DEPositions from SIMBAD database (declination part)degpos.eq.dec;meta.main