A survey for transients and variables with the Murchison Widefield Array 32-tile prototype at 154 MHz

/ Authors

M. Bell, T. Murphy, D. Kaplan, P. Hancock, B. Gaensler, J. Banyer, K. Bannister, K. Bannister, C. Trott, C. Trott

and 62 more authors

N. Hurley-Walker, R. Wayth, R. Wayth, J. Macquart, J. Macquart, W. Arcus, David G. Barnes, G. Bernardi, J. Bowman, F. Briggs, F. Briggs, J. Bunton, R. Cappallo, B. Corey, A. Deshpande, L. deSouza, L. deSouza, D. Emrich, R. Goeke, L. Greenhill, B. Hazelton, D. Herne, J. Hewitt, M. Johnston-Hollitt, J. Kasper, B. B. Kincaid, R. Koenig, E. Kratzenberg, C. Lonsdale, M. Lynch, S. McWhirter, D. Mitchell, D. Mitchell, M. Morales, E. Morgan, D. Oberoi, S. Ord, S. Ord, J. Pathikulangara, T. Prabu, R. Remillard, A. Rogers, A. Roshi, J. Salah, R. Sault, N. Shankar, K. Srivani, J. Stevens, J. Stevens, R. Subrahmanyan, R. Subrahmanyan, S. Tingay, S. Tingay, M. Waterson, M. Waterson, R. Webster, R. Webster, A. Whitney, A. Williams, C. Williams, J. Wyithe, J. Wyithe

/ Abstract

We present a search for transient and variable radio sources at 154 MHz with the Murchison Widefield Array 32-tile prototype. 51 images were obtained that cover a field of view of 1430 deg 2 centred on Hydra A. The observations were obtained over three days in 2010 March and three days in 2011 April and May. The mean cadence of the observations was 26 min and there was additional temporal information on day and year time-scales.

Journal: Monthly Notices of the Royal Astronomical Society

DOI: 10.1093/mnras/stt2200