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Hot, dense He II outflows during the 2017 outburst of the X-ray transient Swift J1357.2-0933
Phil Charles, James H. Matthews, David A. H. Buckley +3
Time-resolved SALT spectra of the short-period, dipping X-ray transient, Swift J1357.2-0933, during its 2017 outburst has revealed broad Balmer and HeII4686 absorption features, bl…
Do Reverberation Mapping Analyses Provide an Accurate Picture of the Broad Line Region?
S. W. Mangham, C. Knigge, P. Williams +6
Reverberation mapping (RM) is a powerful approach for determining the nature of the broad-line region (BLR) in active galactic nuclei. However, inferring physical BLR properties fr…
Cosmic ray acceleration to ultrahigh energy in radio galaxies
James H. Matthews, Anthony R. Bell, Anabella T. Araudo +1
The origin of ultrahigh energy cosmic rays (UHECRs) is an open question. In this proceeding, we first review the general physical requirements that a source must meet for accelerat…
The luminosity dependence of thermally-driven disc winds in low-mass X-ray binaries
Nick Higginbottom, Christian Knigge, Knox S. Long +2
We have carried out radiation-hydrodynamic simulations of thermally-driven accretion disc winds in low-mass X-ray binaries. Our main goal is to study the luminosity dependence of t…