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

    e-VLBI observations of Circinus X-1: monitoring of the quiescent and flaring radio emission on au scales

    218994_39254_moin2011_j.1365-2966.2011.18660.x.pdf (943.1Kb)
    Access Status
    Open access
    Authors
    Moin, Aquib
    Reynolds, Cormac
    Miller-Jones, James
    Tingay, Steven
    Phillips, C.
    Tzioumis, A.
    Nicolson, G.
    Fender, R.
    Date
    2011
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Moin, A. and Reynolds, C. and Miller-Jones, J. and Tingay, S. and Phillips, C. and Tzioumis, A. and Nicolson, G. et al. 2011. e-VLBI observations of Circinus X-1: monitoring of the quiescent and flaring radio emission on au scales. Monthly Notices of the Royal Astronomical Society. 414 (4): pp. 3551-3556.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1111/j.1365-2966.2011.18660.x
    ISSN
    1365-2966
    School
    Curtin Institute of Radio Astronomy (Physics)
    Remarks

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society © 2011 The Authors, © 2011Royal Astronomical Society. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/8848
    Collection
    • Curtin Research Publications
    Abstract

    A recent detection of the peculiar neutron star X-ray binary Circinus X-1 with electronic very long baseline interferometry (e-VLBI) prompted the suggestion that compact, non-variable radio emission persists through the entire 16.6-d orbit of the binary system. We present the results of a high angular resolution monitoring campaign conducted with the Australian Long Baseline Array in real-time e-VLBI mode. e-VLBI observations of Circinus X-1 were made on alternate days over a period of 20 d covering the full binary orbit. A compact radio source associated with Circinus X-1 was clearly detected at orbital phases following periastron passage, but no compact radio emission was detected at any other orbital phase, ruling out the presence of a persistent, compact emitting region at our sensitivity levels. The jet was not resolved at any epoch of our 1.4-GHz monitoring campaign, suggesting that the ultrarelativistic flow previously inferred to exist in this source is likely to be dark. We discuss these findings within the context of previous radio monitoring of Circinus X-1.

    Related items

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

    • Rapid response monitoring of transient radio emission associated with gamma-ray bursts and circinus X-1
      Moin, Aquib (2011)
      This PhD project was aimed at carrying out comprehensive observational studies of radio sources associated with two types of transients: a) Gamma- Ray Bursts (GRBs) b) an X-ray binary system Circinus X-1, by exploring and ...
    • EVN e-VLBI observations of galactic transients
      Tudose, V.; Fender, R.; Paragi, Z.; Garrett, M.; Rushton, A.; Spencer, R.; Miller-Jones, James (2010)
      e-VLBI (electronic very long baseline interferometry) is a new implementation of the VLBI technique consisting in transferring the data from the radio telescopes to the correlator over the internet and correlating them ...
    • Radio and X-ray variability in the Seyfert galaxy NGC 4051
      Jones, S.; McHardy, I.; Moss, D.; Seymour, Nick; Breedt, E.; Uttley, P.; Körding, E.; Tudose, V. (2011)
      We present intensive quasi-simultaneous X-ray and radio monitoring of the narrow line Seyfert 1 galaxy NGC 4051, over a 16-month period in 2000–01. The X-ray observations were made with the Proportional Counter Array on ...
    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.