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The LOFAR pilot surveys for pulsars and fast radio transients
- Source :
- Astronomy and astrophysics, 570:A60. EDP Sciences, Astronomy & Astrophysics, 570, October, pp. A60, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2014, 570, ⟨10.1051/0004-6361/201424495⟩, A60, Astronomy & Astrophysics, 570. EDP Sciences, Astronomy and Astrophysics-A&A, EDP Sciences, 2014, 570, ⟨10.1051/0004-6361/201424495⟩, Astronomy & Astrophysics, 570, A60, Astronomy & astrophysics, 570(A60), 1-18. EDP Sciences, Coenen, T, van Leeuwen, J, Hessels, J W T, Stappers, B W, Kondratiev, V I, Alexov, A, Breton, R P, Bilous, A, Cooper, S, Falcke, H, Fallows, R A, Gajjar, V, Grießmeier, J-M, Hassall, T E, Karastergiou, A, Keane, E F, Kramer, M, Kuniyoshi, M, Noutsos, A, Osłowski, S, Pilia, M, Serylak, M, Schrijvers, C, Sobey, C, ter Veen, S, Verbiest, J, Weltevrede, P, Wijnholds, S, Zagkouris, K, van Amesfoort, A S, Anderson, J, Asgekar, A, Avruch, I M, Bell, M E, Bentum, M J, Bernardi, G, Best, P, Bonafede, A, Breitling, F, Broderick, J, Brüggen, M, Butcher, H R, 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 W, Hamaker, J P, Heald, G, Hoeft, M, van der Horst, A, Juette, E, Kuper, G, Law, C, Mann, G, McFadden, R, McKay-Bukowski, D, McKean, J P, Munk, H, Orru, E, Paas, H, Pandey-Pommier, M, Polatidis, A G, Reich, W, Renting, A, Röttgering, H, Rowlinson, A, Scaife, A M M, Schwarz, D, Sluman, J, Smirnov, O, Swinbank, J, Tagger, M, Tang, Y, Tasse, C, Thoudam, S, Toribio, C, Vermeulen, R, Vocks, C, van Weeren, R J, Wucknitz, O, Zarka, P & Zensus, A 2014, ' The LOFAR pilot surveys for pulsars and fast radio transients ', Astronomy & Astrophysics, vol. 570 . https://doi.org/10.1051/0004-6361/201424495, Astronomy and Astrophysics, Coenen, T, van Leeuwen, J, Hessels, J W T, Stappers, B W, Kondratiev, V I, Alexov, A, Breton, R P, Bilous, A, Cooper, S, Falcke, H, Fallows, R A, Gajjar, V, Grießmeier, J-M, Hassall, T E, Karastergiou, A, Keane, E F, Kramer, M, Kuniyoshi, M, Noutsos, A, Osłowski, S, Pilia, M, Serylak, M, Schrijvers, C, Sobey, C, ter Veen, S, Verbiest, J, Weltevrede, P, Wijnholds, S, Zagkouris, K, van Amesfoort, A S, Anderson, J, Asgekar, A, Avruch, I M, Bell, M E, Bentum, M J, Bernardi, G, Best, P, Bonafede, A, Breitling, F, Broderick, J, Brüggen, M, Butcher, H R, Ciardi, B, Corstanje, A, Deller, A, Duscha, S, Eislöffel, J, Fender, R, Ferrari, C, Frieswijk, W, Garrett, M A, de Gasperin, F, de Geus, E, Gunst, A W, Hamaker, J P, Heald, G, Hoeft, M, van der Horst, A, Juette, E, Kuper, G, Law, C, Mann, G, McFadden, R, McKay-Bukowski, D, McKean, J P, Munk, H, Orru, E, Paas, H, Pandey-Pommier, M, Polatidis, A G, Reich, W, Renting, A, Röttgering, H, Rowlinson, A, Scaife, A M M, Schwarz, D, Sluman, J, Smirnov, O, Swinbank, J, Tagger, M, Tang, Y, Tasse, C, Thoudam, S, Toribio, C, Vermeulen, R, Vocks, C, van Weeren, R J, Wucknitz, O, Zarka, P & Zensus, A 2014, ' The LOFAR pilot surveys for pulsars and fast radio transients ', Astronomy & Astrophysics, vol. 570, A60 . https://doi.org/10.1051/0004-6361/201424495
- Publication Year :
- 2014
-
Abstract
- 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 x 10^4 sq. deg, with 1-hr dwell times. Each observation covered ~75 sq. deg 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 sq. deg, 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 sq. deg per pointing. From LPPS we derive a limit on the occurrence, at 142 MHz, of dispersed radio bursts of < 150 /day/sky, 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.<br />18 pages, 10 figures, accepted for A&A
- Subjects :
- EWI-25426
Aperture array
media_common.quotation_subject
Astronomy
Pilot survey
SPECTRAL INDEX
FOS: Physical sciences
Astrophysics
general [pulsars]
METIS-309729
MHZ
Pulsar
surveys
pulsars: general
BURSTS
Survey
Telescope
POPULATION
Solar and Stellar Astrophysics (astro-ph.SR)
media_common
Physics
High Energy Astrophysical Phenomena (astro-ph.HE)
[PHYS]Physics [physics]
ORIGIN
[SDU.ASTR.SR]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Solar and Stellar Astrophysics [astro-ph.SR]
Astronomy and Astrophysics
telescopes
BINARY
LOFAR
Astronomy and Astrophysic
IR-93231
Astrophysics - Solar and Stellar Astrophysics
Sky
Space and Planetary Science
DISCOVERY
ComputingMethodologies_DOCUMENTANDTEXTPROCESSING
STATE CHANGE
Antenna (radio)
ALLEN TELESCOPE ARRAY
EMISSION
[PHYS.ASTR]Physics [physics]/Astrophysics [astro-ph]
Astrophysics - High Energy Astrophysical Phenomena
Subjects
Details
- Language :
- English
- ISSN :
- 00046361
- Database :
- OpenAIRE
- Journal :
- Astronomy and astrophysics, 570:A60. EDP Sciences, Astronomy & Astrophysics, 570, October, pp. A60, Astronomy and Astrophysics-A&A, Astronomy and Astrophysics-A&A, 2014, 570, ⟨10.1051/0004-6361/201424495⟩, A60, Astronomy & Astrophysics, 570. EDP Sciences, Astronomy and Astrophysics-A&A, EDP Sciences, 2014, 570, ⟨10.1051/0004-6361/201424495⟩, Astronomy & Astrophysics, 570, A60, Astronomy & astrophysics, 570(A60), 1-18. EDP Sciences, Coenen, T, van Leeuwen, J, Hessels, J W T, Stappers, B W, Kondratiev, V I, Alexov, A, Breton, R P, Bilous, A, Cooper, S, Falcke, H, Fallows, R A, Gajjar, V, Grießmeier, J-M, Hassall, T E, Karastergiou, A, Keane, E F, Kramer, M, Kuniyoshi, M, Noutsos, A, Osłowski, S, Pilia, M, Serylak, M, Schrijvers, C, Sobey, C, ter Veen, S, Verbiest, J, Weltevrede, P, Wijnholds, S, Zagkouris, K, van Amesfoort, A S, Anderson, J, Asgekar, A, Avruch, I M, Bell, M E, Bentum, M J, Bernardi, G, Best, P, Bonafede, A, Breitling, F, Broderick, J, Brüggen, M, Butcher, H R, 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 W, Hamaker, J P, Heald, G, Hoeft, M, van der Horst, A, Juette, E, Kuper, G, Law, C, Mann, G, McFadden, R, McKay-Bukowski, D, McKean, J P, Munk, H, Orru, E, Paas, H, Pandey-Pommier, M, Polatidis, A G, Reich, W, Renting, A, Röttgering, H, Rowlinson, A, Scaife, A M M, Schwarz, D, Sluman, J, Smirnov, O, Swinbank, J, Tagger, M, Tang, Y, Tasse, C, Thoudam, S, Toribio, C, Vermeulen, R, Vocks, C, van Weeren, R J, Wucknitz, O, Zarka, P & Zensus, A 2014, ' The LOFAR pilot surveys for pulsars and fast radio transients ', Astronomy & Astrophysics, vol. 570 . https://doi.org/10.1051/0004-6361/201424495, Astronomy and Astrophysics, Coenen, T, van Leeuwen, J, Hessels, J W T, Stappers, B W, Kondratiev, V I, Alexov, A, Breton, R P, Bilous, A, Cooper, S, Falcke, H, Fallows, R A, Gajjar, V, Grießmeier, J-M, Hassall, T E, Karastergiou, A, Keane, E F, Kramer, M, Kuniyoshi, M, Noutsos, A, Osłowski, S, Pilia, M, Serylak, M, Schrijvers, C, Sobey, C, ter Veen, S, Verbiest, J, Weltevrede, P, Wijnholds, S, Zagkouris, K, van Amesfoort, A S, Anderson, J, Asgekar, A, Avruch, I M, Bell, M E, Bentum, M J, Bernardi, G, Best, P, Bonafede, A, Breitling, F, Broderick, J, Brüggen, M, Butcher, H R, Ciardi, B, Corstanje, A, Deller, A, Duscha, S, Eislöffel, J, Fender, R, Ferrari, C, Frieswijk, W, Garrett, M A, de Gasperin, F, de Geus, E, Gunst, A W, Hamaker, J P, Heald, G, Hoeft, M, van der Horst, A, Juette, E, Kuper, G, Law, C, Mann, G, McFadden, R, McKay-Bukowski, D, McKean, J P, Munk, H, Orru, E, Paas, H, Pandey-Pommier, M, Polatidis, A G, Reich, W, Renting, A, Röttgering, H, Rowlinson, A, Scaife, A M M, Schwarz, D, Sluman, J, Smirnov, O, Swinbank, J, Tagger, M, Tang, Y, Tasse, C, Thoudam, S, Toribio, C, Vermeulen, R, Vocks, C, van Weeren, R J, Wucknitz, O, Zarka, P & Zensus, A 2014, ' The LOFAR pilot surveys for pulsars and fast radio transients ', Astronomy & Astrophysics, vol. 570, A60 . https://doi.org/10.1051/0004-6361/201424495
- Accession number :
- edsair.doi.dedup.....2f6121f3ee673ce7b3c2d29026c73457
- Full Text :
- https://doi.org/10.1051/0004-6361/201424495⟩