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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. (author)
- University of Oxford, UK ; University of Southampton, UK
-
- Fender, R. P. (author)
- University of Oxford, UK ; University of Southampton, UK
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- Broderick, J. W. (author)
- University of Oxford, UK ; University of Southampton, UK ; ASTRON, The Netherlands
- show more...
- 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)
- 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)
- Toribio, M. C. (author)
- Vermeulen, R. (author)
- Vocks, C. (author)
- Wijnholds, S. J. (author)
- Wucknitz, O. (author)
- Yatawatta, S. (author)
- show less...
- (creator_code:org_t)
- 2015-12-31
- 2016
- English.
- In: Monthly notices of the Royal Astronomical Society. - : Oxford University Press (OUP). - 0035-8711 .- 1365-2966. ; 456:3, s. 2321-2342
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- 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
- NATURVETENSKAP -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)
Keyword
- instrumentation
- interferometers
- techniques
- image processing
- radio continuum
- Astroparticle Physics
- Astropartikelfysik
Publication and Content Type
- ref (subject category)
- art (subject category)
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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.
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- 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...
- About the subject
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- NATURAL SCIENCES
- NATURAL SCIENCES
- and Physical Science ...
- and Astronomy Astrop ...
- Articles in the publication
- Monthly notices ...
- By the university
- Linnaeus University
- Chalmers University of Technology
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