A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs

Ben Burningham; Martin Hardcastle; Jonathan Nichols; Sarah Casewell; Stuart Littlefair; Craig Stark; Matthew Burleigh; Stanimir Metchev; Megan Tannock; Reinout van Weeren; Wendy Louise Williams; Graham Wynn

doi:10.1093/mnras/stw2065

A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs

Ben Burningham, Martin Hardcastle, Jonathan Nichols, Sarah Casewell, Stuart Littlefair, Craig Stark, Matthew Burleigh, Stanimir Metchev, Megan Tannock, Reinout van Weeren, Wendy Louise Williams, Graham Wynn

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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
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	https://doi.org/10.1093/mnras/stw2065
Publication status	Published - 1 Dec 2016

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10.1093/mnras/stw2065Licence: CC BY

1608.03852v1Accepted author manuscript, 1.2 MBLicence: CC BY

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Burningham, B., Hardcastle, M., Nichols, J., Casewell, S., Littlefair, S., Stark, C., Burleigh, M., Metchev, S., Tannock, M., van Weeren, R., Williams, W. L., & Wynn, G. (2016). A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs. Monthly Notices of the Royal Astronomical Society (MNRAS), 463(2), 2202-2209. https://doi.org/10.1093/mnras/stw2065

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title = "A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs",

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.",

author = "Ben Burningham and Martin Hardcastle and Jonathan Nichols and Sarah Casewell and Stuart Littlefair and Craig Stark and Matthew Burleigh and Stanimir Metchev and Megan Tannock and \{van Weeren\}, Reinout and Williams, \{Wendy Louise\} and Graham Wynn",

year = "2016",

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doi = "10.1093/mnras/stw2065",

language = "English",

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Burningham, B , Hardcastle, M, Nichols, J, Casewell, S, Littlefair, S, Stark, C, Burleigh, M, Metchev, S, Tannock, M, van Weeren, R, Williams, WL & Wynn, G 2016, 'A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs', Monthly Notices of the Royal Astronomical Society (MNRAS), vol. 463, no. 2, pp. 2202-2209. https://doi.org/10.1093/mnras/stw2065

TY - JOUR

T1 - A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs

AU - Burningham, Ben

AU - Hardcastle, Martin

AU - Nichols, Jonathan

AU - Casewell, Sarah

AU - Littlefair, Stuart

AU - Stark, Craig

AU - Burleigh, Matthew

AU - Metchev, Stanimir

AU - Tannock, Megan

AU - van Weeren, Reinout

AU - Williams, Wendy Louise

AU - Wynn, Graham

PY - 2016/12/1

Y1 - 2016/12/1

N2 - 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.

AB - 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.

U2 - 10.1093/mnras/stw2065

DO - 10.1093/mnras/stw2065

M3 - Article

SN - 0035-8711

VL - 463

SP - 2202

EP - 2209

JO - Monthly Notices of the Royal Astronomical Society (MNRAS)

JF - Monthly Notices of the Royal Astronomical Society (MNRAS)

IS - 2

ER -

A LOFAR mini-survey for low-frequency radio emission from the nearest brown dwarfs

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