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

G. Hobbs; I. Heywood; M.E. Bell; M. Kerr; A. Rowlinson; S. Johnston; R.M. Shannon; M.A. Voronkov; C. Ward; J. Banyer; P.J. Hancock; T. Murphy; J.R. Allison; S.W. Amy; L. Ball; K. Bannister; D.C.J. Bock; D. Brodrick; M. Brothers; A.J. Brown; J.D. Bunton; J. Chapman; A.P. Chippendale; Y. Chung; D. Deboer; P. Diamond; P.G. Edwards; R. Ekers; R.H. Ferris; R. Forsyth; R. Gough; A. Grancea; N. Gupta; L. Harvey-Smith; S. Hay; D.B. Hayman; A.W. Hotan; S. Hoyle; B. Humphreys; B. Indermuehle; C.E. Jacka; C.A. Jackson; S. Jackson; K. Jeganathan; J. Joseph; R. Kendall; D. Kiraly; B. Koribalski; M. Leach; E. Lenc; A. Macleod; S. Mader; M. Marquarding; J. Marvil; N. Mcclure-Griffiths; D. Mcconnell; P. Mirtschin; S. Neuhold; A. Ng; R.P. Norris; J. O'Sullivan; S. Pearce; C.J. Phillips; Attila Popping; R.Y. Qiao; J.E. Reynolds; P. Roberts; R.J. Sault; A.E.T. Schinckel; P. Serra; R. Shaw; T.W. Shimwell; M. Storey; A.W. Sweetnam; A. Tzioumis; Tobias Westmeier; M. Whiting; C.D. Wilson

doi:10.1093/mnras/stv2893

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

G. Hobbs, I. Heywood, M.E. Bell, M. Kerr, A. Rowlinson, S. Johnston, R.M. Shannon, M.A. Voronkov, C. Ward, J. Banyer, P.J. Hancock, T. Murphy, J.R. Allison, S.W. Amy, L. Ball, K. Bannister, D.C.J. Bock, D. Brodrick, M. Brothers, A.J. BrownJ.D. Bunton, J. Chapman, A.P. Chippendale, Y. Chung, D. Deboer, P. Diamond, P.G. Edwards, R. Ekers, R.H. Ferris, R. Forsyth, R. Gough, A. Grancea, N. Gupta, L. Harvey-Smith, S. Hay, D.B. Hayman, A.W. Hotan, S. Hoyle, B. Humphreys, B. Indermuehle, C.E. Jacka, C.A. Jackson, S. Jackson, K. Jeganathan, J. Joseph, R. Kendall, D. Kiraly, B. Koribalski, M. Leach, E. Lenc, A. Macleod, S. Mader, M. Marquarding, J. Marvil, N. Mcclure-Griffiths, D. Mcconnell, P. Mirtschin, S. Neuhold, A. Ng, R.P. Norris, J. O'Sullivan, S. Pearce, C.J. Phillips, Attila Popping, R.Y. Qiao, J.E. Reynolds, P. Roberts, R.J. Sault, A.E.T. Schinckel, P. Serra, R. Shaw, T.W. Shimwell, M. Storey, A.W. Sweetnam, A. Tzioumis, Tobias Westmeier, M. Whiting, C.D. Wilson

International Centre for Radio Astronomy Research (ICRAR)

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Abstract

© 2016 The Authors. 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 h 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 time-scale between the strong emission states of 3.7 h. After the first switch it remained in the strong state for almost 40 min. The other strong states lasted less than 4 min. 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 time-scales. 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.

Original language	English
Pages (from-to)	3948-3960
Journal	Monthly Notices of the Royal Astronomical Society
Volume	456
Issue number	4
DOIs	https://doi.org/10.1093/mnras/stv2893
Publication status	Published - 2016

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10.1093/mnras/stv2893

Hobbs et al., 2016 A pilot ASKAP
This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©2016. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.
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Hobbs, G., Heywood, I., Bell, M. E., Kerr, M., Rowlinson, A., Johnston, S., Shannon, R. M., Voronkov, M. A., Ward, C., Banyer, J., Hancock, P. J., Murphy, T., Allison, J. R., Amy, S. W., Ball, L., Bannister, K., Bock, D. C. J., Brodrick, D., Brothers, M., ... Wilson, C. D. (2016). A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907. Monthly Notices of the Royal Astronomical Society, 456(4), 3948-3960. https://doi.org/10.1093/mnras/stv2893

Hobbs, G. ; Heywood, I. ; Bell, M.E. ; Kerr, M. ; Rowlinson, A. ; Johnston, S. ; Shannon, R.M. ; Voronkov, M.A. ; Ward, C. ; Banyer, J. ; Hancock, P.J. ; Murphy, T. ; Allison, J.R. ; Amy, S.W. ; Ball, L. ; Bannister, K. ; Bock, D.C.J. ; Brodrick, D. ; Brothers, M. ; Brown, A.J. ; Bunton, J.D. ; Chapman, J. ; Chippendale, A.P. ; Chung, Y. ; Deboer, D. ; Diamond, P. ; Edwards, P.G. ; Ekers, R. ; Ferris, R.H. ; Forsyth, R. ; Gough, R. ; Grancea, A. ; Gupta, N. ; Harvey-Smith, L. ; Hay, S. ; Hayman, D.B. ; Hotan, A.W. ; Hoyle, S. ; Humphreys, B. ; Indermuehle, B. ; Jacka, C.E. ; Jackson, C.A. ; Jackson, S. ; Jeganathan, K. ; Joseph, J. ; Kendall, 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.P. ; O'Sullivan, J. ; Pearce, S. ; Phillips, C.J. ; Popping, Attila ; Qiao, R.Y. ; Reynolds, J.E. ; Roberts, P. ; Sault, R.J. ; Schinckel, A.E.T. ; Serra, P. ; Shaw, R. ; Shimwell, T.W. ; Storey, M. ; Sweetnam, A.W. ; Tzioumis, A. ; Westmeier, Tobias ; Whiting, M. ; Wilson, C.D. / A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907. In: Monthly Notices of the Royal Astronomical Society. 2016 ; Vol. 456, No. 4. pp. 3948-3960.

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

abstract = "{\textcopyright} 2016 The Authors. 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 h 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 time-scale between the strong emission states of 3.7 h. After the first switch it remained in the strong state for almost 40 min. The other strong states lasted less than 4 min. 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 time-scales. 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.",

author = "G. Hobbs and I. Heywood and M.E. Bell and M. Kerr and A. Rowlinson and S. Johnston and R.M. Shannon and M.A. Voronkov and C. Ward and J. Banyer and P.J. Hancock and T. Murphy and J.R. Allison and S.W. Amy and L. Ball and K. Bannister and D.C.J. Bock and D. Brodrick and M. Brothers and A.J. Brown and J.D. Bunton and J. Chapman and A.P. Chippendale and Y. Chung and D. Deboer and P. Diamond and P.G. Edwards and R. Ekers and R.H. Ferris and R. Forsyth and R. Gough and A. Grancea and N. Gupta and L. Harvey-Smith and S. Hay and D.B. Hayman and A.W. Hotan and S. Hoyle and B. Humphreys and B. Indermuehle and C.E. Jacka and C.A. Jackson and S. Jackson and K. Jeganathan and J. Joseph and R. Kendall and D. Kiraly and B. Koribalski and M. Leach and E. Lenc and A. Macleod and S. Mader and M. Marquarding and J. Marvil and N. Mcclure-Griffiths and D. Mcconnell and P. Mirtschin and S. Neuhold and A. Ng and R.P. Norris and J. O'Sullivan and S. Pearce and C.J. Phillips and Attila Popping and R.Y. Qiao and J.E. Reynolds and P. Roberts and R.J. Sault and A.E.T. Schinckel and P. Serra and R. Shaw and T.W. Shimwell and M. Storey and A.W. Sweetnam and A. Tzioumis and Tobias Westmeier and M. Whiting and C.D. Wilson",

year = "2016",

doi = "10.1093/mnras/stv2893",

language = "English",

volume = "456",

pages = "3948--3960",

journal = "Monthly Notices of the Royal Astronomical Society",

issn = "0035-8711",

publisher = "Oxford University Press",

number = "4",

}

Hobbs, G, Heywood, I, Bell, ME, Kerr, M, Rowlinson, A, Johnston, S, Shannon, RM, Voronkov, MA, Ward, C, Banyer, J, Hancock, PJ, Murphy, T, Allison, JR, Amy, SW, Ball, L, Bannister, K, Bock, DCJ, Brodrick, D, Brothers, M, Brown, AJ, Bunton, JD, Chapman, J, Chippendale, AP, Chung, Y, Deboer, D, Diamond, P, Edwards, PG, Ekers, R, Ferris, RH, Forsyth, R, Gough, R, Grancea, A, Gupta, N, Harvey-Smith, L, Hay, S, Hayman, DB, Hotan, AW, Hoyle, S, Humphreys, B, Indermuehle, B, Jacka, CE, Jackson, CA, Jackson, S, Jeganathan, K, Joseph, J, Kendall, 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, RP, O'Sullivan, J, Pearce, S, Phillips, CJ, Popping, A, Qiao, RY, Reynolds, JE, Roberts, P, Sault, RJ, Schinckel, AET, Serra, P, Shaw, R, Shimwell, TW, Storey, M, Sweetnam, AW, Tzioumis, A, Westmeier, T, Whiting, M & Wilson, CD 2016, 'A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907', Monthly Notices of the Royal Astronomical Society, vol. 456, no. 4, pp. 3948-3960. https://doi.org/10.1093/mnras/stv2893

A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907. / Hobbs, G.; Heywood, I.; Bell, M.E.; Kerr, M.; Rowlinson, A.; Johnston, S.; Shannon, R.M.; Voronkov, M.A.; Ward, C.; Banyer, J.; Hancock, P.J.; Murphy, T.; Allison, J.R.; Amy, S.W.; Ball, L.; Bannister, K.; Bock, D.C.J.; Brodrick, D.; Brothers, M.; Brown, A.J.; Bunton, J.D.; Chapman, J.; Chippendale, A.P.; Chung, Y.; Deboer, D.; Diamond, P.; Edwards, P.G.; Ekers, R.; Ferris, R.H.; Forsyth, R.; Gough, R.; Grancea, A.; Gupta, N.; Harvey-Smith, L.; Hay, S.; Hayman, D.B.; Hotan, A.W.; Hoyle, S.; Humphreys, B.; Indermuehle, B.; Jacka, C.E.; Jackson, C.A.; Jackson, S.; Jeganathan, K.; Joseph, J.; Kendall, 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.P.; O'Sullivan, J.; Pearce, S.; Phillips, C.J.; Popping, Attila; Qiao, R.Y.; Reynolds, J.E.; Roberts, P.; Sault, R.J.; Schinckel, A.E.T.; Serra, P.; Shaw, R.; Shimwell, T.W.; Storey, M.; Sweetnam, A.W.; Tzioumis, A.; Westmeier, Tobias; Whiting, M.; Wilson, C.D.

In: Monthly Notices of the Royal Astronomical Society, Vol. 456, No. 4, 2016, p. 3948-3960.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - A pilot ASKAP survey of radio transient events in the region around the intermittent pulsar PSR J1107-5907

AU - Hobbs, G.

AU - Heywood, I.

AU - Bell, M.E.

AU - Kerr, M.

AU - Rowlinson, A.

AU - Johnston, S.

AU - Shannon, R.M.

AU - Voronkov, M.A.

AU - Ward, C.

AU - Banyer, J.

AU - Hancock, P.J.

AU - Murphy, T.

AU - Allison, J.R.

AU - Amy, S.W.

AU - Ball, L.

AU - Bannister, K.

AU - Bock, D.C.J.

AU - Brodrick, D.

AU - Brothers, M.

AU - Brown, A.J.

AU - Bunton, J.D.

AU - Chapman, J.

AU - Chippendale, A.P.

AU - Chung, Y.

AU - Deboer, D.

AU - Diamond, P.

AU - Edwards, P.G.

AU - Ekers, R.

AU - Ferris, R.H.

AU - Forsyth, R.

AU - Gough, R.

AU - Grancea, A.

AU - Gupta, N.

AU - Harvey-Smith, L.

AU - Hay, S.

AU - Hayman, D.B.

AU - Hotan, A.W.

AU - Hoyle, S.

AU - Humphreys, B.

AU - Indermuehle, B.

AU - Jacka, C.E.

AU - Jackson, C.A.

AU - Jackson, S.

AU - Jeganathan, K.

AU - Joseph, J.

AU - Kendall, R.

AU - Kiraly, D.

AU - Koribalski, B.

AU - Leach, M.

AU - Lenc, E.

AU - Macleod, A.

AU - Mader, S.

AU - Marquarding, M.

AU - Marvil, J.

AU - Mcclure-Griffiths, N.

AU - Mcconnell, D.

AU - Mirtschin, P.

AU - Neuhold, S.

AU - Ng, A.

AU - Norris, R.P.

AU - O'Sullivan, J.

AU - Pearce, S.

AU - Phillips, C.J.

AU - Popping, Attila

AU - Qiao, R.Y.

AU - Reynolds, J.E.

AU - Roberts, P.

AU - Sault, R.J.

AU - Schinckel, A.E.T.

AU - Serra, P.

AU - Shaw, R.

AU - Shimwell, T.W.

AU - Storey, M.

AU - Sweetnam, A.W.

AU - Tzioumis, A.

AU - Westmeier, Tobias

AU - Whiting, M.

AU - Wilson, C.D.

PY - 2016

Y1 - 2016

N2 - © 2016 The Authors. 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 h 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 time-scale between the strong emission states of 3.7 h. After the first switch it remained in the strong state for almost 40 min. The other strong states lasted less than 4 min. 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 time-scales. 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.

AB - © 2016 The Authors. 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 h 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 time-scale between the strong emission states of 3.7 h. After the first switch it remained in the strong state for almost 40 min. The other strong states lasted less than 4 min. 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 time-scales. 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.

U2 - 10.1093/mnras/stv2893

DO - 10.1093/mnras/stv2893

M3 - Article

VL - 456

SP - 3948

EP - 3960

JO - Monthly Notices of the Royal Astronomical Society

JF - Monthly Notices of the Royal Astronomical Society

SN - 0035-8711

IS - 4

ER -

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

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