We thank the anonymous referee for her/his suggestions which improved the manuscript. AM thanks A. De Rosa and M. Dovˇciak for useful discussions. AM and RM acknowledge the support of… Click to show full abstract
We thank the anonymous referee for her/his suggestions which improved the manuscript. AM thanks A. De Rosa and M. Dovˇciak for useful discussions. AM and RM acknowledge the support of the International Space Science Institute (ISSI Bern, Switzerland). BDM acknowledges support from the European Union’s Horizon 2020 research and innovation programme under the Marie Sk lodowska-Curie grant agreement No. 798726 and Polish National Science Center grant OPUS No. 2015/17/B/ST9/03422. We made use of Astropy, a community-developed core Python package for Astronomy (Astropy Collaboration et al. 2013, 2018) and matplotlib (Hunter 2007). This research has made use of the NuSTAR Data Analysis Software (NuSTARDAS) jointly developed by the ASI Science Data Center (ASDC, Italy) and the California Institute of Technology (USA).
               
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