@article{0822cd62405f47898b46a529ed495898,
title = "The curious case of Swift J1753.5-0127: A black hole low-mass X-ray binary analogue to Z cam type dwarf novae",
abstract = "Swift J1753.5-0127 (J1753) is a candidate black hole low-mass X-ray binary (BH-LMXB) that was discovered in outburst in 2005 May. It remained in outburst for ~12 yr, exhibiting a wide range of variability on various time-scales, before entering quiescence after two shortlived, low-luminosity 'mini-outbursts' in 2017 April. The unusually long outburst duration in such a short-period (Porb ≈ 3.24 hr) source, and complex variability observed during this outburst period, challenges the predictions of the widely accepted disc-instability model, which has been shown to broadly reproduce the behaviour of LMXB systems well. The long-term behaviour observed in J1753 is reminiscent of the Z Cam class of dwarf novae, whereby variablemass transfer from the companion star drives unusual outbursts, characterized by stalled decays and abrupt changes in luminosity. Using sophisticated modelling of the multiwavelength light curves and spectra of J1753, during the ~12 yr the source was active, we investigate the hypothesis that periods of enhanced mass transfer from the companion star may have driven this unusually long outburst. Our modelling suggests that J1753 is in fact a BH-LMXB analogue to Z Cam systems, where the variable mass transfer from the companion star is driven by the changing irradiation properties of the system, affecting both the disc and companion star.",
keywords = "Accretion, Accretion discs, Black hole physics, Stars: individual: Swift J1753.5-0127, X-rays: binaries",
author = "Shaw, {A. W.} and Tetarenko, {B. E.} and G. Dubus and T. Din{\c c}er and Tomsick, {J. A.} and P. Gandhi and Plotkin, {R. M.} and Russell, {D. M.}",
note = "Funding Information: We thank the anonymous referee for useful comments which helped to improve the manuscript. AWS and BET would like to thank P.A. Charles, C.O. Heinke, and G.R. Sivakoff, for useful discussions. AWS and BET are supported by NSERC Discovery Grants, and AWS is also supported by a Discovery Accelerator Supplement. GD acknowledges support from the Centre National d' Etudes Spatiales (CNES). RMP acknowledges support from Curtin University through the Peter Curran Memorial Fellowship. This research has made use of data, software, and/or web tools obtained from the High Energy Astrophysics Science Archive Research Center (HEASARC), a service of the Astrophysics Science Division at NASA Goddard Space Flight Center (GSFC) and of the Smithsonian Astrophysical Observatory's High Energy Astrophysics Division, and data supplied by the UK Swift Science Data Centre at the University of Leicester. This work has also made extensive use of NASA's Astrophysics Data System (ADS) Funding Information: We thank the anonymous referee for useful comments which helped to improve the manuscript. AWS and BET would like to thank P.A. Charles, C.O. Heinke, and G.R. Sivakoff, for useful discussions. AWS and BET are supported by NSERC Discovery Grants, and AWS is also supported by a Discovery Accelerator Supplement. GD acknowledges support from the Centre National d{\textquoteright}{\'E}tudes Spa-tiales (CNES). RMP acknowledges support from Curtin University through the Peter Curran Memorial Fellowship. This research has made use of data, software, and/or web tools obtained from the High Energy Astrophysics Science Archive Research Center (HEASARC), a service of the Astrophysics Science Division at NASA Goddard Space Flight Center (GSFC) and of the Smithso-nian Astrophysical Observatory{\textquoteright}s High Energy Astrophysics Division, and data supplied by the UK Swift Science Data Centre at the University of Leicester. This work has also made extensive use of NASA{\textquoteright}s Astrophysics Data System (ADS). Publisher Copyright: {\textcopyright} 2018 The Author(s). Published by Oxford University Press on behalf of the Royal Astronomical Society.",
year = "2019",
month = jan,
day = "11",
doi = "10.1093/mnras/sty2787",
language = "English (US)",
volume = "482",
pages = "1840--1857",
journal = "Monthly Notices of the Royal Astronomical Society",
issn = "0035-8711",
publisher = "Oxford University Press",
number = "2",
}