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Itumeleng Monageng – Outbursting X-ray transients: recent multi-wavelength results
Feb 25 @ 11:00 am - 12:00 pm
Thursday 25 February 2021
Dr Itumeleng Monageng (UCT & SAAO)
Outbursting X-ray transients: recent multi-wavelength results
In this presentation I will discuss recent results of X-ray binaries obtained with multi-wavelength facilities. In the first part of the talk I will discuss the results of a weekly monitoring campaign of the new Galactic black hole low-mass X-ray binary transient, MAXI J1631-479, during its 2018/19 outburst. The multi-wavelength campaign was carried out with the MeerKAT radio interferometer and X-ray observations from Swift and MAXI. I will discuss the variability observed and physical interpretation of it.
In the second part of the talk I will present recent results of the outbursting Be X-ray binary, SXP91.1, which is located in the Small Magellanic Cloud. The data from the monitoring campaign of this object was obtained using the optical telescopes, SALT and OGLE, together with X-ray observations from Swift. I will show the analysis performed on these data, where we have studied the variability of the circumstellar disc and how it interacts with the neutron star.