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

    Searching for Fast Radio Transients with SKA Phase 1

    Access Status
    Open access via publisher
    Authors
    Colegate, Timothy
    Clarke, Nathan
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Colegate, T.M. and Clarke, N. 2011. Searching for Fast Radio Transients with SKA Phase 1. Publications of the Astronomical Society of Australia. 28 (4): pp. 299-316.
    Source Title
    Publications of the Astronomical Society of Australia
    DOI
    10.1071/AS11031
    ISSN
    1323-3580
    School
    Curtin Institute of Radio Astronomy
    Remarks

    Copyright © 2011 Astronomical Society of Australia

    URI
    http://hdl.handle.net/20.500.11937/3955
    Collection
    • Curtin Research Publications
    Abstract

    The Square Kilometre Array (SKA) provides an excellent opportunity for low-cost searches for fast radio transients. The increased sensitivity and field of view of the SKA compared with other radio telescopes will make it an ideal instrument to search for impulsive emission from high–energy density events. We present a high-level search ‘use case’ and propose “event rate per unit cost” as a figure of merit to compare transient survey strategies for radio telescope arrays; we use “event rate per beam formed and searched” as a first-order approximation of this measure. Key results are that incoherent (phase-insensitive) combination of antenna signals achieves the highest event rate per beam, and that 50–100 MHz processed bandwidth is sufficient for extragalactic searches with SKA Phase 1; the gain in event rate from using the full available bandwidth is small. Greater system flexibility will enable more effective searches, but need not drive the top-level system requirements beyond those already proposed for the SKA. The most appropriate search strategy depends on the observed sky direction and the source population; for SKA Phase 1, low-frequency aperture arrays tend to be more effective for extragalactic searches, and dishes more effective for directions of increased scatter broadening, such as near the Galactic plane.

    Related items

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

    • Limits on the Event Rates of Fast Radio Transients from the V-FASTR
      Wayth, Randall; Tingay, Steven; Deller, A; Brisken, Walter; Thompson, David; Wagstaff, K; Majid, Walid (2012)
      We present the first results from the V-FASTR experiment, a commensal search for fast transient radio bursts using the Very Long Baseline Array (VLBA). V-FASTR is unique in that the widely spaced VLBA antennas provide a ...
    • A search for fast radio bursts associated with gamma-ray bursts
      Palaniswamy, D.; Wayth, Randall; Trott, Cathryn; McCallum, J.; Tingay, Steven; Reynolds, Cormac (2014)
      The detection of seven fast radio bursts (FRBs) has recently been reported. FRBs are short duration (~1 ms), highly dispersed radio pulses from astronomical sources. The physical interpretation for the FRBs remains unclear ...
    • System design for the square kilometre array : new views of the universe
      Colegate, Timothy Maarten (2012)
      The Square Kilometre Array (SKA) radio telescope is being designed as a premier scientific instrument of the 21st century, using novel technologies to maximise its scientific capability. The SKA has an aggressive project ...
    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.