Journal article
Low-Frequency Spectral Energy Distributions of Radio Pulsars Detected with the Murchison Widefield Array
T Murphy, DL Kaplan, ME Bell, JR Callingham, S Croft, S Johnston, D Dobie, A Zic, J Hughes, C Lynch, P Hancock, N Hurley-Walker, E Lenc, KS Dwarakanath, BQ For, BM Gaensler, L Hindson, M Johnston-Hollitt, AD Kapińska, B McKinley Show all
Publications of the Astronomical Society of Australia | Published : 2017
DOI: 10.1017/pasa.2017.13
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.
Grants
Awarded by National Science Foundation
Funding Acknowledgements
We thank Fabian Jankowski for providing his ATCA flux density measurements ahead of publication. This scientific work makes use of the Murchison Radio-astronomy Observatory, operated by CSIRO. We acknowledge the Wajarri Yamatji people as the traditional owners of the Observatory site. Support for the operation of the MWA is provided by the Australian Government Department of Industry and Science and Department of Education (National Collaborative Research Infrastructure Strategy: NCRIS), under a contract to Curtin University administered by Astronomy Australia Limited. We acknowledge the iVEC Petabyte Data Store and the Initiative in Innovative Computing and the CUDA Center for Excellence sponsored by NVIDIA at Harvard University. DLK and SDC are additionally supported by NSF grant AST-1412421.