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

    Pulsar candidates towards Fermi unassociated sources

    74819.pdf (515.8Kb)
    Access Status
    Open access
    Authors
    Frail, D.
    Mooley, K.
    Jagannathan, P.
    Intema, Hubertus
    Date
    2016
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Frail, D. and Mooley, K. and Jagannathan, P. and Intema, H. 2016. Pulsar candidates towards Fermi unassociated sources. Monthly Notices of the Royal Astronomical Society. 461 (1): pp. 1062-1067.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stw1390
    ISSN
    0035-8711
    Remarks

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2016 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/74534
    Collection
    • Curtin Research Publications
    Abstract

    We report on a search for steep spectrum radio sources within the 95 per cent confidence error ellipses of the Fermi unassociated sources from the Large Area Telescope (LAT). Using existing catalogues and the newly released Giant Metrewave Radio Telescope all-sky survey at 150 MHz, we identify compact radio sources that are bright at MHz frequencies but faint or absent at GHz frequencies. Such steep spectrum radio sources are rare and constitute a sample of pulsar candidates, selected independently of period, dispersion measure, interstellar scattering and orbital parameters. We find point-like, steep spectrum candidates towards 11 Fermi sources. Based on the gamma-ray/radio positional coincidence, the rarity of such radio sources, and the properties of the 3FGL sources themselves, we argue that many of these sources could be pulsars. They may have been missed by previous radio periodicity searches due to interstellar propagation effects or because they lie in an unusually tight binary. If this hypothesis is correct, then renewed gamma-ray and radio periodicity searches at the positions of the steep spectrum radio sources may reveal pulsations.

    Related items

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

    • The local radio-galaxy population at 20 GHz
      Sadler, E.; Ekers, Ronald; Mahony, E.; Mauch, T.; Murphy, T. (2014)
      We have made the first detailed study of the high-frequency radio-source population in the local Universe, using a sample of 202 radio sources from the Australia Telescope 20 GHz (AT20G) survey identified with galaxies ...
    • The radio spectral energy distribution of infrared-faint radio sources
      Herzog, A.; Norris, R.; Middelberg, E.; Seymour, Nick; Spitler, L.; Emonts, B.; Franzen, T.; Hunstead, R.; Intema, H.; Marvil, J.; Parker, Q.; Sirothia, S.; Hurley-Walker, Natasha; Bell, M.; Bernardi, G.; Bowman, J.; Briggs, F.; Cappallo, R.; Callingham, J.; Deshpande, A.; Dwarakanath, K.; For, B.; Greenhill, L.; Hancock, Paul; Hazelton, B.; Hindson, L.; Johnston-Hollitt, M.; Kapińska, A.; Kaplan, D.; Lenc, E.; Lonsdale, C.; McKinley, B.; McWhirter, S.; Mitchell, D.; Morales, M.; Morgan, E.; Morgan, J.; Oberoi, D.; Offringa, A.; Ord, S.; Prabu, T.; Procopio, P.; Udaya Shankar, N.; Srivani, K.; Staveley-Smith, L.; Subrahmanyan, R.; Tingay, Steven; Wayth, Randall; Webster, R.; Williams, A.; Williams, C.; Wu, C.; Zheng, Q.; Bannister, K.; Chippendale, A.; Harvey-Smith, L.; Heywood, I.; Indermuehle, B.; Popping, A.; Sault, R.; Whiting, M. (2016)
      Context: Infrared-faint radio sources (IFRS) are a class of radio-loud (RL) active galactic nuclei (AGN) at high redshifts (z 1:7) that are characterised by their relative infrared faintness, resulting in enormous ...
    • Discovery of large-scale diffuse radio emission in low-mass galaxy cluster Abell 1931
      Brüggen, M.; Bonafede, A.; van Weeren, R.; Shimwell, T.; Intema, Hubertus; Röttgering, H.; Brunetti, G.; Di Gennaro, G.; Savini, F.; Wilber, A.; O'Sullivan, S.; Ensslin, T.; De Gasperin, F.; Hoeft, M. (2018)
      Extended, steep-spectrum radio synchrotron sources are pre-dominantly found in massive galaxy clusters as opposed to groups. LOFAR Two-Metre Sky Survey images have revealed a diffuse, ultra-steep-spectrum radio source in ...
    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.