The LOFAR pilot surveys for pulsars and fast radio transients

© 2014 ESO .We have conducted two pilot surveys for radio pulsars and fast transients with the Low-Frequency Array (LOFAR) around 140 MHz and here report on the first low-frequency fast-radio burst limit and the discovery of two new pulsars. The first survey, the LOFAR Pilot Pulsar Survey (LPPS), ob...

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Main Authors:	Coenen, T., Van Leeuwen, J., Hessels, J., Stappers, B., Kondratiev, V., Alexov, A., Breton, R., Bilous, A., Cooper, S., Falcke, H., Fallows, R., Gajjar, V., Grießmeier, J., Hassall, T., Karastergiou, A., Keane, E., Kramer, M., Kuniyoshi, M., Noutsos, A., Oslowski, S., Pilia, M., Serylak, M., Schrijvers, C., Sobey, Charlotte, Ter Veen, S., Verbiest, J., Weltevrede, P., Wijnholds, S., Zagkouris, K., Van Amesfoort, A., Anderson, J., Asgekar, A., Avruch, I., Bell, M., Bentum, M., Bernardi, G., Best, P., Bonafede, A., Breitling, F., Broderick, J., Brüggen, M., Butcher, H., Ciardi, B., Corstanje, A., Deller, A., Duscha, S., Eislöffel, J., Fender, R., Ferrari, C., Frieswijk, W., Garrett, M., De Gasperin, F., De Geus, E., Gunst, A., Hamaker, J., Heald, G., Hoeft, M., Van Der Horst, A., Juette, E., Kuper, G., Law, C., Mann, G., McFadden, R., McKay-Bukowski, D., McKean, J., Munk, H., Orru, E., Paas, H., Pandey-Pommier, M., Polatidis, A., Reich, W., Renting, A., Röttgering, H., Rowlinson, A., Scaife, A., Schwarz, D., Sluman, J., Smirnov, O., Swinbank, J.
Format:	Journal Article
Published:	EDP Sciences 2014
Online Access:	http://hdl.handle.net/20.500.11937/52279

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author	Coenen, T. Van Leeuwen, J. Hessels, J. Stappers, B. Kondratiev, V. Alexov, A. Breton, R. Bilous, A. Cooper, S. Falcke, H. Fallows, R. Gajjar, V. Grießmeier, J. Hassall, T. Karastergiou, A. Keane, E. Kramer, M. Kuniyoshi, M. Noutsos, A. Oslowski, S. Pilia, M. Serylak, M. Schrijvers, C. Sobey, Charlotte Ter Veen, S. Verbiest, J. Weltevrede, P. Wijnholds, S. Zagkouris, K. Van Amesfoort, A. Anderson, J. Asgekar, A. Avruch, I. Bell, M. Bentum, M. Bernardi, G. Best, P. Bonafede, A. Breitling, F. Broderick, J. Brüggen, M. Butcher, H. Ciardi, B. Corstanje, A. Deller, A. Duscha, S. Eislöffel, J. Fender, R. Ferrari, C. Frieswijk, W. Garrett, M. De Gasperin, F. De Geus, E. Gunst, A. Hamaker, J. Heald, G. Hoeft, M. Van Der Horst, A. Juette, E. Kuper, G. Law, C. Mann, G. McFadden, R. McKay-Bukowski, D. McKean, J. Munk, H. Orru, E. Paas, H. Pandey-Pommier, M. Polatidis, A. Reich, W. Renting, A. Röttgering, H. Rowlinson, A. Scaife, A. Schwarz, D. Sluman, J. Smirnov, O. Swinbank, J.
author_facet	Coenen, T. Van Leeuwen, J. Hessels, J. Stappers, B. Kondratiev, V. Alexov, A. Breton, R. Bilous, A. Cooper, S. Falcke, H. Fallows, R. Gajjar, V. Grießmeier, J. Hassall, T. Karastergiou, A. Keane, E. Kramer, M. Kuniyoshi, M. Noutsos, A. Oslowski, S. Pilia, M. Serylak, M. Schrijvers, C. Sobey, Charlotte Ter Veen, S. Verbiest, J. Weltevrede, P. Wijnholds, S. Zagkouris, K. Van Amesfoort, A. Anderson, J. Asgekar, A. Avruch, I. Bell, M. Bentum, M. Bernardi, G. Best, P. Bonafede, A. Breitling, F. Broderick, J. Brüggen, M. Butcher, H. Ciardi, B. Corstanje, A. Deller, A. Duscha, S. Eislöffel, J. Fender, R. Ferrari, C. Frieswijk, W. Garrett, M. De Gasperin, F. De Geus, E. Gunst, A. Hamaker, J. Heald, G. Hoeft, M. Van Der Horst, A. Juette, E. Kuper, G. Law, C. Mann, G. McFadden, R. McKay-Bukowski, D. McKean, J. Munk, H. Orru, E. Paas, H. Pandey-Pommier, M. Polatidis, A. Reich, W. Renting, A. Röttgering, H. Rowlinson, A. Scaife, A. Schwarz, D. Sluman, J. Smirnov, O. Swinbank, J.
author_sort	Coenen, T.
building	Curtin Institutional Repository
collection	Online Access
description	© 2014 ESO .We have conducted two pilot surveys for radio pulsars and fast transients with the Low-Frequency Array (LOFAR) around 140 MHz and here report on the first low-frequency fast-radio burst limit and the discovery of two new pulsars. The first survey, the LOFAR Pilot Pulsar Survey (LPPS), observed a large fraction of the northern sky, ~ 1.4 × 104 deg2, with 1 h dwell times. Each observation covered ~75 deg2 using 7 independent fields formed by incoherently summing the high-band antenna fields. The second pilot survey, the LOFAR Tied-Array Survey (LOTAS), spanned ~600 deg2, with roughly a 5-fold increase in sensitivity compared with LPPS. Using a coherent sum of the 6 LOFAR "Superterp" stations, we formed 19 tied-array beams, together covering 4 deg2 per pointing. From LPPS we derive a limit on the occurrence, at 142 MHz, of dispersed radio bursts of < 150 day-1 sky-1, for bursts brighter than S> 107 Jy for the narrowest searched burst duration of 0.66 ms. In LPPS, we re-detected 65 previously known pulsars. LOTAS discovered two pulsars, the first with LOFAR or any digital aperture array. LOTAS also re-detected 27 previously known pulsars. These pilot studies show that LOFAR can efficiently carry out all-sky surveys for pulsars and fast transients, and they set the stage for further surveying efforts using LOFAR and the planned low-frequency component of the Square Kilometer Array.
first_indexed	2025-11-14T09:51:10Z
format	Journal Article
id	curtin-20.500.11937-52279
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T09:51:10Z
publishDate	2014
publisher	EDP Sciences
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-522792017-09-13T15:38:22Z The LOFAR pilot surveys for pulsars and fast radio transients Coenen, T. Van Leeuwen, J. Hessels, J. Stappers, B. Kondratiev, V. Alexov, A. Breton, R. Bilous, A. Cooper, S. Falcke, H. Fallows, R. Gajjar, V. Grießmeier, J. Hassall, T. Karastergiou, A. Keane, E. Kramer, M. Kuniyoshi, M. Noutsos, A. Oslowski, S. Pilia, M. Serylak, M. Schrijvers, C. Sobey, Charlotte Ter Veen, S. Verbiest, J. Weltevrede, P. Wijnholds, S. Zagkouris, K. Van Amesfoort, A. Anderson, J. Asgekar, A. Avruch, I. Bell, M. Bentum, M. Bernardi, G. Best, P. Bonafede, A. Breitling, F. Broderick, J. Brüggen, M. Butcher, H. Ciardi, B. Corstanje, A. Deller, A. Duscha, S. Eislöffel, J. Fender, R. Ferrari, C. Frieswijk, W. Garrett, M. De Gasperin, F. De Geus, E. Gunst, A. Hamaker, J. Heald, G. Hoeft, M. Van Der Horst, A. Juette, E. Kuper, G. Law, C. Mann, G. McFadden, R. McKay-Bukowski, D. McKean, J. Munk, H. Orru, E. Paas, H. Pandey-Pommier, M. Polatidis, A. Reich, W. Renting, A. Röttgering, H. Rowlinson, A. Scaife, A. Schwarz, D. Sluman, J. Smirnov, O. Swinbank, J. © 2014 ESO .We have conducted two pilot surveys for radio pulsars and fast transients with the Low-Frequency Array (LOFAR) around 140 MHz and here report on the first low-frequency fast-radio burst limit and the discovery of two new pulsars. The first survey, the LOFAR Pilot Pulsar Survey (LPPS), observed a large fraction of the northern sky, ~ 1.4 × 104 deg2, with 1 h dwell times. Each observation covered ~75 deg2 using 7 independent fields formed by incoherently summing the high-band antenna fields. The second pilot survey, the LOFAR Tied-Array Survey (LOTAS), spanned ~600 deg2, with roughly a 5-fold increase in sensitivity compared with LPPS. Using a coherent sum of the 6 LOFAR "Superterp" stations, we formed 19 tied-array beams, together covering 4 deg2 per pointing. From LPPS we derive a limit on the occurrence, at 142 MHz, of dispersed radio bursts of < 150 day-1 sky-1, for bursts brighter than S> 107 Jy for the narrowest searched burst duration of 0.66 ms. In LPPS, we re-detected 65 previously known pulsars. LOTAS discovered two pulsars, the first with LOFAR or any digital aperture array. LOTAS also re-detected 27 previously known pulsars. These pilot studies show that LOFAR can efficiently carry out all-sky surveys for pulsars and fast transients, and they set the stage for further surveying efforts using LOFAR and the planned low-frequency component of the Square Kilometer Array. 2014 Journal Article http://hdl.handle.net/20.500.11937/52279 10.1051/0004-6361/201424495 EDP Sciences unknown
spellingShingle	Coenen, T. Van Leeuwen, J. Hessels, J. Stappers, B. Kondratiev, V. Alexov, A. Breton, R. Bilous, A. Cooper, S. Falcke, H. Fallows, R. Gajjar, V. Grießmeier, J. Hassall, T. Karastergiou, A. Keane, E. Kramer, M. Kuniyoshi, M. Noutsos, A. Oslowski, S. Pilia, M. Serylak, M. Schrijvers, C. Sobey, Charlotte Ter Veen, S. Verbiest, J. Weltevrede, P. Wijnholds, S. Zagkouris, K. Van Amesfoort, A. Anderson, J. Asgekar, A. Avruch, I. Bell, M. Bentum, M. Bernardi, G. Best, P. Bonafede, A. Breitling, F. Broderick, J. Brüggen, M. Butcher, H. Ciardi, B. Corstanje, A. Deller, A. Duscha, S. Eislöffel, J. Fender, R. Ferrari, C. Frieswijk, W. Garrett, M. De Gasperin, F. De Geus, E. Gunst, A. Hamaker, J. Heald, G. Hoeft, M. Van Der Horst, A. Juette, E. Kuper, G. Law, C. Mann, G. McFadden, R. McKay-Bukowski, D. McKean, J. Munk, H. Orru, E. Paas, H. Pandey-Pommier, M. Polatidis, A. Reich, W. Renting, A. Röttgering, H. Rowlinson, A. Scaife, A. Schwarz, D. Sluman, J. Smirnov, O. Swinbank, J. The LOFAR pilot surveys for pulsars and fast radio transients
title	The LOFAR pilot surveys for pulsars and fast radio transients
title_full	The LOFAR pilot surveys for pulsars and fast radio transients
title_fullStr	The LOFAR pilot surveys for pulsars and fast radio transients
title_full_unstemmed	The LOFAR pilot surveys for pulsars and fast radio transients
title_short	The LOFAR pilot surveys for pulsars and fast radio transients
title_sort	lofar pilot surveys for pulsars and fast radio transients
url	http://hdl.handle.net/20.500.11937/52279

The LOFAR pilot surveys for pulsars and fast radio transients

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