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    Measuring fundamental jet properties with multiwavelength fast timing of the black hole X-ray binary MAXI J1820+070

    89848.pdf (5.604Mb)
    Access Status
    Open access
    Authors
    Tetarenko, A.J.
    Casella, P.
    Miller-Jones, James
    Sivakoff, G.R.
    Paice, J.A.
    Vincentelli, F.M.
    Maccarone, T.J.
    Gandhi, P.
    Dhillon, V.S.
    Marsh, T.R.
    Russell, T.D.
    Uttley, P.
    Date
    2021
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Tetarenko, A.J. and Casella, P. and Miller-Jones, J.C.A. and Sivakoff, G.R. and Paice, J.A. and Vincentelli, F.M. and Maccarone, T.J. et al. 2021. Measuring fundamental jet properties with multiwavelength fast timing of the black hole X-ray binary MAXI J1820+070. Monthly Notices of the Royal Astronomical Society. 504 (3): pp. 3862-3883.
    Source Title
    Monthly Notices of the Royal Astronomical Society
    DOI
    10.1093/mnras/stab820
    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

    This article has been accepted for publication in Monthly Notices of the Royal Astronomical Society ©: 2021 The Authors. Published by Oxford University Press on behalf of the Royal Astronomical Society. All rights reserved.

    URI
    http://hdl.handle.net/20.500.11937/90024
    Collection
    • Curtin Research Publications
    Abstract

    We present multiwavelength fast timing observations of the black hole X-ray binary MAXI J1820+070 (ASASSN-18ey), taken with the Karl G. Jansky Very Large Array (VLA), Atacama Large Millimeter/Sub-Millimeter Array (ALMA), Very Large Telescope (VLT), New Technology Telescope (NTT), Neutron Star Interior Composition Explorer (NICER), and XMM-Newton. Our data set simultaneously samples 10 different electromagnetic bands (radio - X-ray) over a 7-h period during the hard state of the 2018-2019 outburst. The emission we observe is highly variable, displaying multiple rapid flaring episodes. To characterize the variability properties in our data, we implemented a combination of cross-correlation and Fourier analyses. We find that the emission is highly correlated between different bands, measuring time-lags ranging from hundreds of milliseconds between the X-ray/optical bands to minutes between the radio/sub-mm bands. Our Fourier analysis also revealed, for the first time in a black hole X-ray binary, an evolving power spectral shape with electromagnetic frequency. Through modelling these variability properties, we find that MAXI J1820+070 launches a highly relativistic (Gamma =6.81 +1.06 -1.15}$) and confined (phi =0.45 +0.13 -0.11 deg) jet, which is carrying a significant amount of power away from the system (equivalent to sim 0.6 , L-{1-100{rm keV}). We additionally place constraints on the jet composition and magnetic field strength in the innermost jet base region. Overall, this work demonstrates that time-domain analysis is a powerful diagnostic tool for probing jet physics, where we can accurately measure jet properties with time-domain measurements alone.

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