A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907

We use observations from the Boolardy Engineering Test Array (BETA) of the Australian Square Kilometre Array Pathfinder (ASKAP) telescope to search for transient radio sources in the field around the intermittent pulsar PSR J1107-5907. The pulsar is thought to switch between an "off" state...

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Main Authors:	Hobbs, G., Heywood, I., Bell, M., Kerr, M., Rowlinson, A., Johnston, S., Shannon, R., Voronkov, M., Ward, C., Banyer, J., Hancock, P., Murphy, T., Allison, J., Amy, S., Ball, L., Bannister, K., Bock, D., Brodrick, D., Brothers, M., Brown, A., Bunton, J., Chapman, J., Chippendale, A., Chung, Y., DeBoer, D., Diamond, P., Edwards, P., Ekers, Ronald, Ferris, R., Forsyth, R., Gough, R., Grancea, A., Gupta, N., Harvey-Smith, L., Hay, S., Hayman, D., Hotan, A., Hoyle, S., Humphreys, B., Indermuehle, B., Jacka, C., Jackson, C., Jackson, S., Jeganathan, K., Joseph, J., Kenda, R., Kiraly, D., Koribalski, B., Leach, M., Lenc, E., MacLeod, A., Mader, S., Marquarding, M., Marvil, J., McClure-Griffiths, N., McConnell, D., Mirtschin, P., Neuhold, S., Ng, A., Norris, R., O'Sullivan, J., Pearce, S., Phillips, C., Popping, A., Qiao, R., Reynolds, J., Roberts, P., Sault, R., Schinckel, A., Serra, P., Shaw, R., Shimwel, T., Storey, M., Sweetnam, A., Tzioumis, A., Westmeier, T., Whitingl, M., Wilson, C.
Format:	Journal Article
Published:	Oxford University Press 2016
Online Access:	http://hdl.handle.net/20.500.11937/40948

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author	Hobbs, G. Heywood, I. Bell, M. Kerr, M. Rowlinson, A. Johnston, S. Shannon, R. Voronkov, M. Ward, C. Banyer, J. Hancock, P. Murphy, T. Allison, J. Amy, S. Ball, L. Bannister, K. Bock, D. Brodrick, D. Brothers, M. Brown, A. Bunton, J. Chapman, J. Chippendale, A. Chung, Y. DeBoer, D. Diamond, P. Edwards, P. Ekers, Ronald Ferris, R. Forsyth, R. Gough, R. Grancea, A. Gupta, N. Harvey-Smith, L. Hay, S. Hayman, D. Hotan, A. Hoyle, S. Humphreys, B. Indermuehle, B. Jacka, C. Jackson, C. Jackson, S. Jeganathan, K. Joseph, J. Kenda, R. Kiraly, D. Koribalski, B. Leach, M. Lenc, E. MacLeod, A. Mader, S. Marquarding, M. Marvil, J. McClure-Griffiths, N. McConnell, D. Mirtschin, P. Neuhold, S. Ng, A. Norris, R. O'Sullivan, J. Pearce, S. Phillips, C. Popping, A. Qiao, R. Reynolds, J. Roberts, P. Sault, R. Schinckel, A. Serra, P. Shaw, R. Shimwel, T. Storey, M. Sweetnam, A. Tzioumis, A. Westmeier, T. Whitingl, M. Wilson, C.
author_facet	Hobbs, G. Heywood, I. Bell, M. Kerr, M. Rowlinson, A. Johnston, S. Shannon, R. Voronkov, M. Ward, C. Banyer, J. Hancock, P. Murphy, T. Allison, J. Amy, S. Ball, L. Bannister, K. Bock, D. Brodrick, D. Brothers, M. Brown, A. Bunton, J. Chapman, J. Chippendale, A. Chung, Y. DeBoer, D. Diamond, P. Edwards, P. Ekers, Ronald Ferris, R. Forsyth, R. Gough, R. Grancea, A. Gupta, N. Harvey-Smith, L. Hay, S. Hayman, D. Hotan, A. Hoyle, S. Humphreys, B. Indermuehle, B. Jacka, C. Jackson, C. Jackson, S. Jeganathan, K. Joseph, J. Kenda, R. Kiraly, D. Koribalski, B. Leach, M. Lenc, E. MacLeod, A. Mader, S. Marquarding, M. Marvil, J. McClure-Griffiths, N. McConnell, D. Mirtschin, P. Neuhold, S. Ng, A. Norris, R. O'Sullivan, J. Pearce, S. Phillips, C. Popping, A. Qiao, R. Reynolds, J. Roberts, P. Sault, R. Schinckel, A. Serra, P. Shaw, R. Shimwel, T. Storey, M. Sweetnam, A. Tzioumis, A. Westmeier, T. Whitingl, M. Wilson, C.
author_sort	Hobbs, G.
building	Curtin Institutional Repository
collection	Online Access
description	We use observations from the Boolardy Engineering Test Array (BETA) of the Australian Square Kilometre Array Pathfinder (ASKAP) telescope to search for transient radio sources in the field around the intermittent pulsar PSR J1107-5907. The pulsar is thought to switch between an "off" state in which no emission is detectable, a weak state and a strong state. We ran three independent transient detection pipelines on two-minute snapshot images from a 13 hour BETA observation in order to 1) study the emission from the pulsar, 2) search for other transient emission from elsewhere in the image and 3) to compare the results from the different transient detection pipelines. The pulsar was easily detected as a transient source and, over the course of the observations, it switched into the strong state three times giving a typical timescale between the strong emission states of 3.7 hours. After the first switch it remained in the strong state for almost 40 minutes. The other strong states lasted less than 4 minutes. The second state change was confirmed using observations with the Parkes radio telescope. No other transient events were found and we place constraints on the surface density of such events on these timescales. The high sensitivity Parkes observations enabled us to detect individual bright pulses during the weak state and to study the strong state over a wide observing band. We conclude by showing that future transient surveys with ASKAP will have the potential to probe the intermittent pulsar population.
first_indexed	2025-11-14T09:05:22Z
format	Journal Article
id	curtin-20.500.11937-40948
institution	Curtin University Malaysia
institution_category	Local University
last_indexed	2025-11-14T09:05:22Z
publishDate	2016
publisher	Oxford University Press
recordtype	eprints
repository_type	Digital Repository
spelling	curtin-20.500.11937-409482018-03-29T09:06:49Z A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907 Hobbs, G. Heywood, I. Bell, M. Kerr, M. Rowlinson, A. Johnston, S. Shannon, R. Voronkov, M. Ward, C. Banyer, J. Hancock, P. Murphy, T. Allison, J. Amy, S. Ball, L. Bannister, K. Bock, D. Brodrick, D. Brothers, M. Brown, A. Bunton, J. Chapman, J. Chippendale, A. Chung, Y. DeBoer, D. Diamond, P. Edwards, P. Ekers, Ronald Ferris, R. Forsyth, R. Gough, R. Grancea, A. Gupta, N. Harvey-Smith, L. Hay, S. Hayman, D. Hotan, A. Hoyle, S. Humphreys, B. Indermuehle, B. Jacka, C. Jackson, C. Jackson, S. Jeganathan, K. Joseph, J. Kenda, R. Kiraly, D. Koribalski, B. Leach, M. Lenc, E. MacLeod, A. Mader, S. Marquarding, M. Marvil, J. McClure-Griffiths, N. McConnell, D. Mirtschin, P. Neuhold, S. Ng, A. Norris, R. O'Sullivan, J. Pearce, S. Phillips, C. Popping, A. Qiao, R. Reynolds, J. Roberts, P. Sault, R. Schinckel, A. Serra, P. Shaw, R. Shimwel, T. Storey, M. Sweetnam, A. Tzioumis, A. Westmeier, T. Whitingl, M. Wilson, C. We use observations from the Boolardy Engineering Test Array (BETA) of the Australian Square Kilometre Array Pathfinder (ASKAP) telescope to search for transient radio sources in the field around the intermittent pulsar PSR J1107-5907. The pulsar is thought to switch between an "off" state in which no emission is detectable, a weak state and a strong state. We ran three independent transient detection pipelines on two-minute snapshot images from a 13 hour BETA observation in order to 1) study the emission from the pulsar, 2) search for other transient emission from elsewhere in the image and 3) to compare the results from the different transient detection pipelines. The pulsar was easily detected as a transient source and, over the course of the observations, it switched into the strong state three times giving a typical timescale between the strong emission states of 3.7 hours. After the first switch it remained in the strong state for almost 40 minutes. The other strong states lasted less than 4 minutes. The second state change was confirmed using observations with the Parkes radio telescope. No other transient events were found and we place constraints on the surface density of such events on these timescales. The high sensitivity Parkes observations enabled us to detect individual bright pulses during the weak state and to study the strong state over a wide observing band. We conclude by showing that future transient surveys with ASKAP will have the potential to probe the intermittent pulsar population. 2016 Journal Article http://hdl.handle.net/20.500.11937/40948 10.1093/mnras/stv2893 Oxford University Press restricted
spellingShingle	Hobbs, G. Heywood, I. Bell, M. Kerr, M. Rowlinson, A. Johnston, S. Shannon, R. Voronkov, M. Ward, C. Banyer, J. Hancock, P. Murphy, T. Allison, J. Amy, S. Ball, L. Bannister, K. Bock, D. Brodrick, D. Brothers, M. Brown, A. Bunton, J. Chapman, J. Chippendale, A. Chung, Y. DeBoer, D. Diamond, P. Edwards, P. Ekers, Ronald Ferris, R. Forsyth, R. Gough, R. Grancea, A. Gupta, N. Harvey-Smith, L. Hay, S. Hayman, D. Hotan, A. Hoyle, S. Humphreys, B. Indermuehle, B. Jacka, C. Jackson, C. Jackson, S. Jeganathan, K. Joseph, J. Kenda, R. Kiraly, D. Koribalski, B. Leach, M. Lenc, E. MacLeod, A. Mader, S. Marquarding, M. Marvil, J. McClure-Griffiths, N. McConnell, D. Mirtschin, P. Neuhold, S. Ng, A. Norris, R. O'Sullivan, J. Pearce, S. Phillips, C. Popping, A. Qiao, R. Reynolds, J. Roberts, P. Sault, R. Schinckel, A. Serra, P. Shaw, R. Shimwel, T. Storey, M. Sweetnam, A. Tzioumis, A. Westmeier, T. Whitingl, M. Wilson, C. A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907
title	A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907
title_full	A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907
title_fullStr	A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907
title_full_unstemmed	A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907
title_short	A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907
title_sort	pilot askap survey of radio transient events in the region around the intermittent pulsar psr j1107-5907
url	http://hdl.handle.net/20.500.11937/40948

A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907

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