Abstract
We have conducted a mini-survey for low-frequency radio emission from some of the closest brown dwarfs to the Sun with rapid rotation rates: SIMP J013656.5+093347, WISEPC J150649.97+702736.0, and WISEPA J174124.26+255319.5. We have placed robust 3-sigma upper limits on the flux density in the 111 - 169 MHz frequency range for these targets: WISE 1506: < 0.72 mJy; WISE 1741: < 0.87 mJy; SIMP 0136: < 0.66 mJy. At 8 hours of integration per target to achieve these limits, we find that systematic and detailed study of this class of object at LOFAR frequencies will require a substantial dedication of resources.
Original language | English |
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Pages (from-to) | 2202-2209 |
Number of pages | 9 |
Journal | Monthly Notices of the Royal Astronomical Society (MNRAS) |
Volume | 463 |
Issue number | 2 |
Early online date | 19 Aug 2016 |
DOIs | |
Publication status | Published - 1 Dec 2016 |