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Low-Frequency Spectral Energy Distributions of Radio Pulsars Detected with the Murchison Widefield Array

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Authors
Murphy, T.
Kaplan, D.
Bell, M.
Callingham, J.
Croft, S.
Johnston, S.
Dobie, D.
Zic, A.
Hughes, J.
Lynch, C.
Hancock, P.
Hurley-Walker, Natasha
Lenc, E.
Dwarakanath, K.
For, B.
Gaensler, B.
Hindson, L.
Johnston-Hollitt, M.
Kapinska, A.
McKinley, B.
Morgan, J.
Offringa, A.
Procopio, P.
Staveley-Smith, L.
Wayth, Randall
Wu, C.
Zheng, Q.
Date
2017
Type
Journal Article

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Murphy, T. and Kaplan, D. and Bell, M. and Callingham, J. and Croft, S. and Johnston, S. and Dobie, D. et al. 2017. Low-Frequency Spectral Energy Distributions of Radio Pulsars Detected with the Murchison Widefield Array. Publications of the Astronomical Society of Australia. 34: Article ID e020.
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Publications of the Astronomical Society of Australia
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Curtin Institute of Radio Astronomy (Physics)
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This article has been published in a revised form in Astronomical Society of Australia http://doi.org. 10.1017/pasa.2017.13 This version is free to view and download for private research and study only. Not for re-distribution, re-sale or use in derivative works

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Abstract

We present low-frequency spectral energy distributions of 60 known radio pulsars observed with the Murchison Widefield Array telescope. We searched the GaLactic and Extragalactic All-sky Murchison Widefield Array survey images for 200-MHz continuum radio emission at the position of all pulsars in the Australia Telescope National Facility (ATNF) pulsar catalogue. For the 60 confirmed detections, we have measured flux densities in 20 × 8 MHz bands between 72 and 231 MHz. We compare our results to existing measurements and show that the Murchison Widefield Array flux densities are in good agreement.