Curtin University Homepage
  • Library
  • Help
    • Admin

    espace - Curtin’s institutional repository

    JavaScript is disabled for your browser. Some features of this site may not work without it.
    View Item 
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item
    • espace Home
    • espace
    • Curtin Research Publications
    • View Item

    Using low-frequency pulsar observations to study the 3-D structure of the Galactic magnetic field

    Access Status
    Fulltext not available
    Authors
    Sobey, Charlotte
    LOFAR Collaborators
    MWA Collaborators
    Date
    2017
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Sobey, C. and LOFAR Collaborators and MWA Collaborators 2017. Using low-frequency pulsar observations to study the 3-D structure of the Galactic magnetic field. Proceedings of the International Astronomical Union. 12 (S333): pp. 151-156.
    Source Title
    Proceedings of the International Astronomical Union
    DOI
    10.1017/S1743921317011255
    ISSN
    1743-9213
    School
    Curtin Institute of Radio Astronomy (Physics)
    URI
    http://hdl.handle.net/20.500.11937/68759
    Collection
    • Curtin Research Publications
    Abstract

    © 2018 International Astronomical Union. The Galactic magnetic field (GMF) plays a role in many astrophysical processes and is a significant foreground to cosmological signals, such as the Epoch of Reionization (EoR), but is not yet well understood. Dispersion and Faraday rotation measurements (DMs and RMs, respectively) towards a large number of pulsars provide an efficient method to probe the three-dimensional structure of the GMF. Low-frequency polarisation observations with large fractional bandwidth can be used to measure precise DMs and RMs. This is demonstrated by a catalogue of RMs (corrected for ionospheric Faraday rotation) from the Low Frequency Array (LOFAR), with a growing complementary catalogue in the southern hemisphere from the Murchison Widefield Array (MWA). These data further our knowledge of the three-dimensional GMF, particularly towards the Galactic halo. Recently constructed or upgraded pathfinder and precursor telescopes, such as LOFAR and the MWA, have reinvigorated low-frequency science and represent progress towards the construction of the Square Kilometre Array (SKA), which will make significant advancements in studies of astrophysical magnetic fields in the future. A key science driver for the SKA-Low is to study the EoR, for which pulsar and polarisation data can provide valuable insights in terms of Galactic foreground conditions.

    Related items

    Showing items related by title, author, creator and subject.

    • Galactic synchrotron emissivity measurements between 250° < l < 355° from the GLEAM survey with the MWA
      Su, H.; Hurley-Walker, Natasha; Jackson, Carole; McClure-Griffiths, N.; Tingay, Steven; Hindson, L.; Hancock, P.; Wayth, Randall; Gaensler, B.; Staveley-Smith, L.; Morgan, J.; Johnston-Hollitt, M.; Lenc, E.; Bell, M.; Callingham, J.; Dwarkanath, K.; For, B.; Kapinska, A.; McKinley, B.; Offringa, A.; Procopio, P.; Wu, C.; Zheng, Q. (2017)
      Synchrotron emission pervades the Galactic plane at low radio frequencies, originating from cosmic ray electrons interacting with the Galactic magnetic field. Using a low-frequency radio telescope, the Murchison Widefield ...
    • An Absence of Fast Radio Bursts at Intermediate Galactic Latitudes
      Petroff, E.; van Straten, W.; johnston, S.; Bailes, M.; Barr, E.; Bates, S.; Bhat, Ramesh; Burgay, M.; Burke-Spolaor, S.; Champion, D.; Coster, P.; Flynn, C.; Keane, E.; Keith, M.; Kramer, M.; Levin, L.; Ng, C.; Possenti, A.; Stappers, B.; Tiburzi, C.; Thornton, D. (2014)
      Fast radio bursts (FRBs) are an emerging class of bright, highly dispersed radio pulses. Recent work by Thornton et al. has revealed a population of FRBs in the High Time Resolution Universe (HTRU) survey at high Galactic ...
    • The Galactic Center Lobe as an H ii Region
      Anderson, Loren; Luisi, M.; Liu, B.; Linville, D.J.; Benjamin, R.A.; Hurley-Walker, Natasha ; McClure-Griffiths, N.M.; Zucker, C. (2024)
      The Galactic center lobe (GCL) is an object ∼1° across that is located north of the Galactic center. In the mid-infrared (MIR) the GCL appears as two 8.0 μm filaments between which there is strong 24 μm and radio continuum ...
    Advanced search

    Browse

    Communities & CollectionsIssue DateAuthorTitleSubjectDocument TypeThis CollectionIssue DateAuthorTitleSubjectDocument Type

    My Account

    Admin

    Statistics

    Most Popular ItemsStatistics by CountryMost Popular Authors

    Follow Curtin

    • 
    • 
    • 
    • 
    • 

    CRICOS Provider Code: 00301JABN: 99 143 842 569TEQSA: PRV12158

    Copyright | Disclaimer | Privacy statement | Accessibility

    Curtin would like to pay respect to the Aboriginal and Torres Strait Islander members of our community by acknowledging the traditional owners of the land on which the Perth campus is located, the Whadjuk people of the Nyungar Nation; and on our Kalgoorlie campus, the Wongutha people of the North-Eastern Goldfields.