LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole

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Stewart, A. J.University of Oxford, UK ; University of Southampton, UK (author)

LOFAR MSSS : detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole

Article/chapterEnglish2016

Publisher, publication year, extent ...

2015-12-31
Oxford University Press (OUP),2016
printrdacarrier

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LIBRIS-ID:oai:DiVA.org:lnu-51519
https://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-51519URI
https://doi.org/10.1093/mnras/stv2797DOI
https://research.chalmers.se/publication/234757URI

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Language:English
Summary in:English

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SwePubSwePub

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

Notes

We present the results of a four-month campaign searching for low-frequency radio transients near the North Celestial Pole with the Low-Frequency Array (LOFAR), as part of the Multifrequency Snapshot Sky Survey (MSSS). The data were recorded between 2011 December and 2012 April and comprised 2149 11-min snapshots, each covering 175 deg2. We have found one convincing candidate astrophysical transient, with a duration of a few minutes and a flux density at 60 MHz of 15–25 Jy. The transient does not repeat and has no obvious optical or high-energy counterpart, as a result of which its nature is unclear. The detection of this event implies a transient rate at 60 MHz of 3.9−3.7+14.7×10−4" style="position: relative;" tabindex="0" id="MathJax-Element-1-Frame" class="MathJax">3.9+14.7−3.7×10−4 d−1 deg−2, and a transient surface density of 1.5 × 10−5 deg−2, at a 7.9-Jy limiting flux density and ∼10-min time-scale. The campaign data were also searched for transients at a range of other time-scales, from 0.5 to 297 min, which allowed us to place a range of limits on transient rates at 60 MHz as a function of observation duration.

Subject headings and genre

NATURVETENSKAP Fysik Astronomi, astrofysik och kosmologi hsv//swe
NATURAL SCIENCES Physical Sciences Astronomy, Astrophysics and Cosmology hsv//eng
instrumentation
interferometers
techniques
image processing
radio continuum
Astroparticle Physics
Astropartikelfysik

Added entries (persons, corporate bodies, meetings, titles ...)

Fender, R. P.University of Oxford, UK ; University of Southampton, UK (author)
Broderick, J. W.University of Oxford, UK ; University of Southampton, UK ; ASTRON, The Netherlands (author)
Hassall, T. E.University of Oxford, UK ; University of Southampton, UK (author)
Muñoz-Darias, T.University of Oxford, UK ; University of Southampton, UK ; Instituto de Astrofísica de Canarias, Spain ; Universidad de La Laguna, Spain (author)
Rowlinson, A.ASTRON, The Netherlands ; Anton Pannekoek Institute for Astronomy, The Netherlands (author)
Swinbank, J. D.Anton Pannekoek Institute for Astronomy, The Netherlands ; Princeton University, USA (author)
Staley, T. D.University of Oxford, UK ; University of Southampton, UK (author)
Molenaar, G. J.Anton Pannekoek Institute for Astronomy, The Netherlands ; Rhodes University, South Africa (author)
Scheers, B.Anton Pannekoek Institute for Astronomy, The Netherlands ; Centrum Wiskunde & Informatica, The Netherlands (author)
Grobler, T. L. (author)
Pietka, M. (author)
Heald, G. (author)
McKean, J. P. (author)
Bell, M. E. (author)
Bonafede, A. (author)
Breton, R. P. (author)
Carbone, D. (author)
Cendes, Y. (author)
Clarke, A. O. (author)
Corbel, S. (author)
de Gasperin, F. (author)
Eislöffel, J. (author)
Falcke, H. (author)
Ferrari, C. (author)
Grießmeier, J. -M (author)
Hardcastle, M. J. (author)
Heesen, V. (author)
Hessels, J. W. T. (author)
Horneffer, A. (author)
Iacobelli, M. (author)
Jonker, P. (author)
Karastergiou, A. (author)
Kokotanekov, G. (author)
Kondratiev, V. I. (author)
Kuniyoshi, M. (author)
Conway, John,1963Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)jconway (author)
van Leeuwen, J. (author)
Markoff, S. (author)
Miller-Jones, J. C. A. (author)
Mulcahy, D. (author)
Orru, E. (author)
Pandey-Pommier, M. (author)
Pratley, L. (author)
Rol, E. (author)
Röttgering, H. J. A. (author)
Scaife, A. M. M. (author)
Shulevski, A. (author)
Sobey, C. A. (author)
Stappers, B. W. (author)
Tasse, C. (author)
van der Horst, A. J. (author)
van Velzen, S. (author)
van Weeren, R. J. (author)
Wijers, R. A. M. J. (author)
Wijnands, R. (author)
Wise, M. (author)
Zarka, P. (author)
Alexov, A. (author)
Anderson, J. (author)
Asgekar, A. (author)
Avruch, I. M. (author)
Bentum, M. J. (author)
Bernardi, G. (author)
Best, P. (author)
Breitling, F. (author)
Brüggen, M. (author)
Butcher, H. R. (author)
Ciardi, B. (author)
Conway, J. E. (author)
Corstanje, A. (author)
de Geus, E. (author)
Deller, A. (author)
Duscha, S. (author)
Frieswijk, W. (author)
Garrett, M. A. (author)
Gunst, A. W. (author)
van Haarlem, M. P. (author)
Hoeft, M. (author)
Hörandel, J. (author)
Juette, E. (author)
Kuper, G. (author)
Loose, M. (author)
Maat, P. (author)
McFadden, R. (author)
McKay-Bukowski, D. (author)
Moldon, J. (author)
Munk, H. (author)
Norden, M. J. (author)
Paas, H. (author)
Polatidis, A. G. (author)
Schwarz, D. (author)
Sluman, J. (author)
Smirnov, O. (author)
Steinmetz, M. (author)
Thoudam, SatyendraRadboud University Nijmegen, The Netherlands(Swepub:lnu)sathaa (author)
Toribio, M. C. (author)
Vermeulen, R. (author)
Vocks, C. (author)
Wijnholds, S. J. (author)
Wucknitz, O. (author)
Yatawatta, S. (author)
University of Oxford, UK ; University of Southampton, UKUniversity of Oxford, UK ; University of Southampton, UK ; ASTRON, The Netherlands (creator_code:org_t)

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In:Monthly notices of the Royal Astronomical Society: Oxford University Press (OUP)456:3, s. 2321-23420035-87111365-2966

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By the author/editor: Stewart, A. J.; Fender, R. P.; Broderick, J. W.; Hassall, T. E.; Muñoz-Darias, T.; Rowlinson, A.; show more...; Swinbank, J. D.; Staley, T. D.; Molenaar, G. J.; Scheers, B.; Grobler, T. L.; Pietka, M.; Heald, G.; McKean, J. P.; Bell, M. E.; Bonafede, A.; Breton, R. P.; Carbone, D.; Cendes, Y.; Clarke, A. O.; Corbel, S.; de Gasperin, F.; Eislöffel, J.; Falcke, H.; Ferrari, C.; Grießmeier, J. - ...; Hardcastle, M. J ...; Heesen, V.; Hessels, J. W. T ...; Horneffer, A.; Iacobelli, M.; Jonker, P.; Karastergiou, A.; Kokotanekov, G.; Kondratiev, V. I ...; Kuniyoshi, M.; Conway, John, 19 ...; van Leeuwen, J.; Markoff, S.; Miller-Jones, J. ...; Mulcahy, D.; Orru, E.; Pandey-Pommier, ...; Pratley, L.; Rol, E.; Röttgering, H. J ...; Scaife, A. M. M.; Shulevski, A.; Sobey, C. A.; Stappers, B. W.; Tasse, C.; van der Horst, A ...; van Velzen, S.; van Weeren, R. J ...; Wijers, R. A. M. ...; Wijnands, R.; Wise, M.; Zarka, P.; Alexov, A.; Anderson, J.; Asgekar, A.; Avruch, I. M.; Bentum, M. J.; Bernardi, G.; Best, P.; Breitling, F.; Brüggen, M.; Butcher, H. R.; Ciardi, B.; Conway, J. E.; Corstanje, A.; de Geus, E.; Deller, A.; Duscha, S.; Frieswijk, W.; Garrett, M. A.; Gunst, A. W.; van Haarlem, M. ...; Hoeft, M.; Hörandel, J.; Juette, E.; Kuper, G.; Loose, M.; Maat, P.; McFadden, R.; McKay-Bukowski, ...; Moldon, J.; Munk, H.; Norden, M. J.; Paas, H.; Polatidis, A. G.; Schwarz, D.; Sluman, J.; Smirnov, O.; Steinmetz, M.; Thoudam, Satyend ...; Toribio, M. C.; Vermeulen, R.; Vocks, C.; Wijnholds, S. J.; Wucknitz, O.; Yatawatta, S.; show less...

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