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

    Puzzling blue dips in the black hole candidate Swift J1357.2 − 0933, from ULTRACAM, SALT, ATCA, Swift, and NuSTAR

    80251.pdf (7.951Mb)
    Access Status
    Open access
    Authors
    Paice, J.A.
    Gandhi, P.
    Charles, P.A.
    Dhillon, V.S.
    Marsh, T.R.
    Buckley, D.A.H.
    Kotze, M.M.
    Beri, A.
    Altamirano, D.
    Middleton, M.J.
    Plotkin, Richard
    Miller-Jones, James
    Russell, D.M.
    Tomsick, J.
    Díaz-Merced, W.
    Misra, R.
    Date
    2019
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Paice, J.A. and Gandhi, P. and Charles, P.A. and Dhillon, V.S. and Marsh, T.R. and Buckley, D.A.H. and Kotze, M.M. et al. 2019. Puzzling blue dips in the black hole candidate Swift J1357.2 − 0933, from ULTRACAM, SALT, ATCA, Swift, and NuSTAR. Monthly Notices of the Royal Astronomical Society. 488 (1): pp. 512-524.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stz1613
    ISSN
    0035-8711
    Faculty
    Faculty of Science and Engineering
    School
    School of Elec Eng, Comp and Math Sci (EECMS)
    Funding and Sponsorship
    http://purl.org/au-research/grants/arc/FT140101082
    Remarks

    Copyright © 2019 The American Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/80169
    Collection
    • Curtin Research Publications
    Abstract

    © 2019 The Author(s). We present rapid, multiwavelength photometry of the low-mass X-ray binary Swift J1357.2-0933 during its 2017 outburst. Using several sets of quasi-simultaneous ULTRACAM/NTT (optical), NuSTAR (X-ray), XRT/Swift (X-ray), SALT (optical), and ATCA (radio) observations taken during outburst decline, we confirm the frequent optical dipping that has previously been noted both in outburst and in quiescence. We also find: (1) that the dip frequency decreases as the outburst decays, similar to what was seen in the previous outburst, (2) that the dips produce a shape similar to that in binary systems with partial disc occultations, (3) that the source becomes significantly bluer during these dips, indicating an unusual geometry compared to other LMXB dippers, and (4) that dip superposition analysis confirms the lack of an X-ray response to the optical dips. These very unusual properties appear to be unique to Swift J1357.2−0933, and are likely the result of a high binary inclination, as inferred from features such as its very low outburst X-ray luminosity. From this analysis as well as X-ray/optical timing correlations, we suggest a model with multicomponent emission/absorption features with differing colours. This could include the possible presence of a sporadically occulted jet base and a recessed disc. This source still hosts many puzzling features, with consequences for the very faint X-ray transients population.

    Related items

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

    • Optical Precursors to Black Hole X-ray Binary Outbursts: An evolving synchrotron jet spectrum in Swift J1357.2-0933
      Russell, D.; Qasim, A.; Bernardini, F.; Plotkin, Richard; Lewis, F.; Koljonen, K.; Yang, Y. (2018)
      We present six years of optical monitoring of the black hole candidate X-ray binary Swift J1357.2-0933, during and since its discovery outburst in 2011. On these long timescales, the quiescent light curve is dominated by ...
    • VLT spectroscopy of the black hole candidate Swift J1357.2-0933 in quiescence
      Torres, M.; Jonker, P.; Miller-Jones, James; Steeghs, D.; Repetto, S.; Wu, J. (2015)
      We present time-resolved optical spectroscopy of the counterpart to the high-inclination black hole low-mass X-ray binary Swift J1357.2−0933 in quiescence. Absorption features from the mass donor star were not detected. ...
    • A clean sightline to quiescence: multiwavelength observations of the high Galactic latitude black hole X-ray binary Swift J1357.2-0933
      Plotkin, Richard; Gallo, E.; Jonker, P.; Miller-Jones, James; Homan, J.; Munoz-Darias, T.; Markoff, S.; Padilla, M.; Fender, R.; Rushton, A.; Russell, D.; Torres, M. (2016)
      We present coordinated multiwavelength observations of the high Galactic latitude (b = +50°) black hole X-ray binary (BHXB) Swift J1357.2−0933 in quiescence. Our broad-band spectrum includes strictly simultaneous radio ...
    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.