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17 papers
1RXS J174320.1-042953: another polar with a red-shifted absorption component in emission line wings
Diego H. González-Buitrago, Ma. T. García-Díaz, Sergey Zharikov +5
We present the results of a spectroscopic and multi-band photometric study of the magnetic cataclysmic variable 1RXS J174320.1-042953. Multi-band photometry confirms a periodic mod…
A Decade of Black-Hole X-ray Binary Transients
Philip A Charles, David A H Buckley, Enrico Kotze +7
The last decade has seen a significant gain in both space and ground-based monitoring capabilities, producing vastly better coverage of BH X-ray binaries during their (rare) transi…
Enhanced optical activity 12 days before X-ray activity, and a 4 day X-ray delay during outburst rise, in a low-mass X-ray binary
A. J. Goodwin, D. M. Russell, D. K. Galloway +12
X-ray transients, such as accreting neutron stars, periodically undergo outbursts, thought to be caused by a thermal-viscous instability in the accretion disk. Usually outbursts of…
A spectroscopic, photometric, polarimetric and radio study of the eclipsing polar UZ Fornacis: the first simultaneous SALT and MeerKAT observations
Zwidofhelangani N. Khangale, Stephen B. Potter, Patrick A. Woudt +17
We present phase-resolved spectroscopy, photometry and circular spectropolarimetry of the eclipsing polar UZ Fornacis. Doppler tomography of the strongest emission lines using the…
MKT J170456.2-482100: the first transient discovered by MeerKAT
L. N. Driessen, I. McDonald, D. A. H. Buckley +19
We report the discovery of the first transient with MeerKAT, MKT J170456.2482100, discovered in ThunderKAT images of the low mass X-ray binary GX3394. MKT J170456.2482100…
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…