J/AJ/158/31ivo://CDS.VizieR/J/AJ/158/31doi:10.26093/cds/vizier.51580031CDSTingay S.J.Hancock P.J.2019-09-13T09:17:04Z2019-09-13T10:14:39ZCDS support team

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

cds-question@unistra.frradio-continuum-emissionradio-sourcesWe present Murchison Widefield Array (MWA) monitoring of the Kepler K2 mission fields 3, 4, and 5 at frequencies of 155 and 186 MHz, from observations contemporaneous with the K2 observations. This work follows from previous MWA and Giant Metrewave Radio Telescope (GMRT) surveys of field 1, with the current work benefiting from a range of improvements in the data processing and analysis. We continue to build a body of systematic low-frequency blind surveys overlapping with transient/variable survey fields at other wavelengths, providing multiwavelength data for object classes such as flare stars. From the current work, we detect no variable objects at a surface density above 2x10^-4^ per square degree, at flux densities of ~500 mJy, and an observation cadence of days to weeks, representing almost an order of magnitude decrease in the measured upper limits compared to previous results in this part of observational parameter space. This continues to show that radio transients at meter and centimeter wavelengths are rare.2019AJ....158...31Thttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/AJ/158/31CatalogResearchIsServedByTAP VizieR generic serviceIsServedByConesearch servicerelated-toVIII/100 : GaLactic and Extragalactic All-sky MWA survey (Hurley-Walker+, 2016)IV/34 : K2 Ecliptic Plane Input Catalog (EPIC) (Huber+, 2017)J/ApJ/755/47 : Murchison Widefield Array 110-200MHz observationsJ/AJ/152/82 : Radio continuum survey of Kepler K2 mission Field 1J/A+A/598/A78 : The GMRT 150MHz all-sky radio survey (Intema+, 2017)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/AJ/158/31https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/AJ/158/31http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/AJ/158/31https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/AJ/158/31https://vizier.iucaa.in/viz-bin/votable?-source=J/AJ/158/31http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/AJ/158/31GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapCone search capability for table J/AJ/158/31/table1 (Murchison Widefield Array (MWA) observation log)https://vizier.cds.unistra.fr/viz-bin/conesearch/J/AJ/158/31/table1?https://vizier.iucaa.in/viz-bin/conesearch/J/AJ/158/31/table1?http://vizieridia.saao.ac.za/viz-bin/conesearch/J/AJ/158/31/table1?GETtext/xml+votable180.050000true334.454-14.6750.0055555555555555565/12117 6/363 448 451 452 4691 4696 18467 18470 18473 40758 40779 40801 48463 48467 48472 48474 48477 48478 48484 48485 48486 48497https://cdsarc.cds.unistra.fr/viz-bin/moc/J/AJ/158/31?format=asciiRadiodefaultJ/AJ/158/31/table1Murchison Widefield Array (MWA) observation logrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintMWAMWA observation identifiermeta.id;obs.param;obsObs.DateUT start time of observation (YYYY-MMM-DDThh:mm:ss)time.start;obscharTexp[112/296] Exposure timestime.duration;obs.exposureintTargetTarget identifier (1)meta.idcharFreq[154.88/1855.6] Center frequencyMHzem.freqfloatRAJ2000Right Ascension in decimal degrees (J2000)degpos.eq.ra;meta.mainDEJ2000Declination in decimal degrees (J2000)degpos.eq.dec;meta.main