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Please use this identifier to cite or link to this item: http://hdl.handle.net/2289/6183
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dc.contributor.authorMurphy, Tara-
dc.contributor.authorDeshpande, A.A.-
dc.contributor.authorPrabu, T.-
dc.contributor.authorUdaya Shankar, N.-
dc.contributor.authorSrivani, K.S.-
dc.contributor.authorSubrahmanyan, Ravi-
dc.contributor.author+25 Co-authors-
dc.date.accessioned2015-02-24T11:39:38Z-
dc.date.available2015-02-24T11:39:38Z-
dc.date.issued2015-01-21-
dc.identifier.citationMonthly Notices of the Royal Astronomical Society, 2015, Vol. 446, p2560-2565en
dc.identifier.issn0035-8711-
dc.identifier.issn1365-2966 - (online)-
dc.identifier.urihttp://hdl.handle.net/2289/6183-
dc.descriptionOpen Accessen
dc.description.abstractWe present the results of a survey for low-frequency radio emission from 17 known exoplanetary systems with the Murchison Widefield Array. This sample includes 13 systems that have not previously been targeted with radio observations. We detected no radio emission at 154 MHz, and put 3σ upper limits in the range 15.2–112.5 mJy on this emission. We also searched for circularly polarized emission and made no detections, obtaining 3σ upper limits in the range 3.4–49.9 mJy. These are comparable with the best low-frequency radio limits in the existing literature and translate to luminosity limits of between 1.2 × 1014 and 1.4 × 1017 W if the emission is assumed to be 100 per cent circularly polarized. These are the first results from a larger program to systematically search for exoplanetary emission with the MWA.en
dc.language.isoenen
dc.relation.urihttp://adsabs.harvard.edu/abs/2015MNRAS.446.2560Men
dc.relation.urihttp://arxiv.org/abs/1410.6819en
dc.relation.urihttp://dx.doi.org/10.1093/mnras/stu2253en
dc.rights2014 The authors & the Royal Astronomical Societyen
dc.subjectradio continuumen
dc.subjectplanetary systemsen
dc.titleLimits on low-frequency radio emission from southern exoplanets with the Murchison widefield arrayen
dc.typeArticleen
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