LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole
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...
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| Формат: | Journal article |
| Опубликовано: |
Oxford University Press
2016
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| _version_ | 1826285225115648000 |
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| author | Stewart, A Fender, R Broderick, J Hassall, T Muñoz-Darias, T Rowlinson, A Swinbank, J Staley, T Molenaar, G Scheers, B Grobler, T Pietka, M Heald, G McKean, J Bell, M Bonafede, A Breton, R Carbone, D Cendes, Y Clarke, A Corbel, S de Gasperin, F Eislöffel, J Falcke, H Ferrari, C Grießmeier, J Hardcastle, M Heesen, V Hessels, J Horneffer, A Iacobelli, M Jonker, P Karastergiou, A Kokotanekov, G Kondratiev, V Kuniyoshi, M Law, C van Leeuwen, J Markoff, S Miller-Jones, J Mulcahy, D Orru, E Pandey-Pommier, M Pratley, L Rol, E Röttgering, H Scaife, A Shulevski, A Sobey, C Stappers, B Tasse, C van der Horst, A van Velzen, S van Weeren, R Wijers, R Wijnands, R Wise, M Zarka, P Alexov, A Anderson, J Asgekar, A Avruch, I Bentum, M Bernardi, G Best, P Breitling, F Brüggen, M Butcher, H Ciardi, B Conway, J Corstanje, A de Geus, E Deller, A Duscha, S Frieswijk, W Garrett, M Gunst, A Haarlem, v Hoeft, M Hörandel, J Juette, E Kuper, G Loose, M Maat, P McFadden, R McKay-Bukowski, D Moldon, J Munk, H Norden, M Paas, H Polatidis, A Schwarz, D Sluman, J Smirnov, O Steinmetz, M Thoudam, S Toribio, M Vermeulen, R Vocks, C Wijnholds, S Wucknitz, O Yatawatta, S |
| author_facet | Stewart, A Fender, R Broderick, J Hassall, T Muñoz-Darias, T Rowlinson, A Swinbank, J Staley, T Molenaar, G Scheers, B Grobler, T Pietka, M Heald, G McKean, J Bell, M Bonafede, A Breton, R Carbone, D Cendes, Y Clarke, A Corbel, S de Gasperin, F Eislöffel, J Falcke, H Ferrari, C Grießmeier, J Hardcastle, M Heesen, V Hessels, J Horneffer, A Iacobelli, M Jonker, P Karastergiou, A Kokotanekov, G Kondratiev, V Kuniyoshi, M Law, C van Leeuwen, J Markoff, S Miller-Jones, J Mulcahy, D Orru, E Pandey-Pommier, M Pratley, L Rol, E Röttgering, H Scaife, A Shulevski, A Sobey, C Stappers, B Tasse, C van der Horst, A van Velzen, S van Weeren, R Wijers, R Wijnands, R Wise, M Zarka, P Alexov, A Anderson, J Asgekar, A Avruch, I Bentum, M Bernardi, G Best, P Breitling, F Brüggen, M Butcher, H Ciardi, B Conway, J Corstanje, A de Geus, E Deller, A Duscha, S Frieswijk, W Garrett, M Gunst, A Haarlem, v Hoeft, M Hörandel, J Juette, E Kuper, G Loose, M Maat, P McFadden, R McKay-Bukowski, D Moldon, J Munk, H Norden, M Paas, H Polatidis, A Schwarz, D Sluman, J Smirnov, O Steinmetz, M Thoudam, S Toribio, M Vermeulen, R Vocks, C Wijnholds, S Wucknitz, O Yatawatta, S |
| author_sort | Stewart, A |
| collection | OXFORD |
| description | 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 deg 2 . 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 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 60MHz as a function of observation duration. |
| first_indexed | 2024-03-07T01:25:39Z |
| format | Journal article |
| id | oxford-uuid:91e3c00d-05c1-4cb2-8174-2d9baa443444 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T01:25:39Z |
| publishDate | 2016 |
| publisher | Oxford University Press |
| record_format | dspace |
| spelling | oxford-uuid:91e3c00d-05c1-4cb2-8174-2d9baa4434442022-03-26T23:21:55ZLOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial PoleJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:91e3c00d-05c1-4cb2-8174-2d9baa443444Symplectic Elements at OxfordOxford University Press2016Stewart, AFender, RBroderick, JHassall, TMuñoz-Darias, TRowlinson, ASwinbank, JStaley, TMolenaar, GScheers, BGrobler, TPietka, MHeald, GMcKean, JBell, MBonafede, ABreton, RCarbone, DCendes, YClarke, ACorbel, Sde Gasperin, FEislöffel, JFalcke, HFerrari, CGrießmeier, JHardcastle, MHeesen, VHessels, JHorneffer, AIacobelli, MJonker, PKarastergiou, AKokotanekov, GKondratiev, VKuniyoshi, MLaw, Cvan Leeuwen, JMarkoff, SMiller-Jones, JMulcahy, DOrru, EPandey-Pommier, MPratley, LRol, ERöttgering, HScaife, AShulevski, ASobey, CStappers, BTasse, Cvan der Horst, Avan Velzen, Svan Weeren, RWijers, RWijnands, RWise, MZarka, PAlexov, AAnderson, JAsgekar, AAvruch, IBentum, MBernardi, GBest, PBreitling, FBrüggen, MButcher, HCiardi, BConway, JCorstanje, Ade Geus, EDeller, ADuscha, SFrieswijk, WGarrett, MGunst, AHaarlem, vHoeft, MHörandel, JJuette, EKuper, GLoose, MMaat, PMcFadden, RMcKay-Bukowski, DMoldon, JMunk, HNorden, MPaas, HPolatidis, ASchwarz, DSluman, JSmirnov, OSteinmetz, MThoudam, SToribio, MVermeulen, RVocks, CWijnholds, SWucknitz, OYatawatta, SWe 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 deg 2 . 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 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 60MHz as a function of observation duration. |
| spellingShingle | Stewart, A Fender, R Broderick, J Hassall, T Muñoz-Darias, T Rowlinson, A Swinbank, J Staley, T Molenaar, G Scheers, B Grobler, T Pietka, M Heald, G McKean, J Bell, M Bonafede, A Breton, R Carbone, D Cendes, Y Clarke, A Corbel, S de Gasperin, F Eislöffel, J Falcke, H Ferrari, C Grießmeier, J Hardcastle, M Heesen, V Hessels, J Horneffer, A Iacobelli, M Jonker, P Karastergiou, A Kokotanekov, G Kondratiev, V Kuniyoshi, M Law, C van Leeuwen, J Markoff, S Miller-Jones, J Mulcahy, D Orru, E Pandey-Pommier, M Pratley, L Rol, E Röttgering, H Scaife, A Shulevski, A Sobey, C Stappers, B Tasse, C van der Horst, A van Velzen, S van Weeren, R Wijers, R Wijnands, R Wise, M Zarka, P Alexov, A Anderson, J Asgekar, A Avruch, I Bentum, M Bernardi, G Best, P Breitling, F Brüggen, M Butcher, H Ciardi, B Conway, J Corstanje, A de Geus, E Deller, A Duscha, S Frieswijk, W Garrett, M Gunst, A Haarlem, v Hoeft, M Hörandel, J Juette, E Kuper, G Loose, M Maat, P McFadden, R McKay-Bukowski, D Moldon, J Munk, H Norden, M Paas, H Polatidis, A Schwarz, D Sluman, J Smirnov, O Steinmetz, M Thoudam, S Toribio, M Vermeulen, R Vocks, C Wijnholds, S Wucknitz, O Yatawatta, S LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole |
| title | LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole |
| title_full | LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole |
| title_fullStr | LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole |
| title_full_unstemmed | LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole |
| title_short | LOFAR MSSS: detection of a low-frequency radio transient in 400 h of monitoring of the North Celestial Pole |
| title_sort | lofar msss detection of a low frequency radio transient in 400 h of monitoring of the north celestial pole |
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