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Title:
Low-Frequency Spectral Energy Distributions of Radio Pulsars Detected with the Murchison Widefield Array
Authors:
Murphy, Tara; Kaplan, David L.; Bell, Martin E.; Callingham, J. R.; Croft, Steve; Johnston, Simon; Dobie, Dougal; Zic, Andrew; Hughes, Jake; Lynch, Christene; Hancock, Paul; Hurley-Walker, Natasha; Lenc, Emil; Dwarakanath, K. S.; For, B.-Q.; Gaensler, B. M.; Hindson, L.; Johnston-Hollitt, M.; Kapinska, A. D.; McKinley, B.; Morgan, J.; Offringa, A. R.; Procopio, P.; Staveley-Smith, L.; Wayth, R.; Wu, C.; Zheng, Q.
Affiliation:
AA(The University of Sydney, NSW 2006, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AB(University of Wisconsin-Milwaukee, Milwaukee, WI 53201, USA 0000-0001-6295-2881), AC(CSIRO Astronomy and Space Science (CASS), Marsfield, NSW 2122, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AD(The University of Sydney, NSW 2006, Australia; CSIRO Astronomy and Space Science (CASS), Marsfield, NSW 2122, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AE(University of California, Berkeley, 501 Campbell Hall #3411, Berkeley, CA 94720, USA; > Eureka Scientific, Inc., 2452 Delmer Street Suite 100, Oakland, CA 94602, USA), AF(CSIRO Astronomy and Space Science (CASS), Marsfield, NSW 2122, Australia), AG(The University of Sydney, NSW 2006, Australia), AH(The University of Sydney, NSW 2006, Australia), AI(The University of Sydney, NSW 2006, Australia), AJ(The University of Sydney, NSW 2006, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AK(Curtin University, Bentley, WA 6102, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AL(Curtin University, Bentley, WA 6102, Australia), AM(The University of Sydney, NSW 2006, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AN(Raman Research Institute, Bangalore 560080, India), AO(Curtin University, Bentley, WA 6102, Australia), AP(The University of Sydney, NSW 2006, Australia; University of Toronto, 50 St George St, Toronto, ON, M5S 3H4, Canada; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AQ(Victoria University of Wellington, Wellington 6140, New Zealand), AR(Victoria University of Wellington, Wellington 6140, New Zealand), AS(University of Western Australia, Crawley, WA 6009, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AT(The University of Melbourne, Parkville, VIC 3010, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AU(Curtin University, Bentley, WA 6102, Australia), AV(Netherlands Institute for Radio Astronomy (ASTRON), PO Box 2, 7990 AA Dwingeloo, The Netherlands), AW(The University of Melbourne, Parkville, VIC 3010, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AX(University of Western Australia, Crawley, WA 6009, Australia; ARC Centre of Excellence for All-sky Astrophysics (CAASTRO)), AY(Curtin University, Bentley, WA 6102, Australia), AZ(Curtin University, Bentley, WA 6102, Australia), BA(Victoria University of Wellington, Wellington 6140, New Zealand)
Publication:
Publications of the Astronomical Society of Australia, Volume 34, id.e020 17 pp. (PASA Homepage)
Publication Date:
04/2017
Origin:
CUP
Astronomy Keywords:
radio continuum: stars, (stars:) pulsars: general
Abstract Copyright:
2017: Astronomical Society of Australia
DOI:
10.1017/pasa.2017.13
Bibliographic Code:
2017PASA...34...20M

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.
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