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Malcolm Coe – The S-CUBE X-ray survey of the Small Magellanic Cloud
10th Dec 2020 @ 11:00 am - 12:00 pm
Thursday 10 December 2020
Prof Malcolm Coe (Southampton University, UK)
The S-CUBE X-ray survey of the Small Magellanic Cloud – neutron stars, white dwarfs, but still no Black Holes!
The Small Magellanic Cloud hosts the largest population known of High Mass X-ray Binary systems – over 100 objects, many more than is known in the Milky Way. Long term studies of the SMC from the weekly Swift/XRT monitoring (the S-CUBE project since July 2016), present us with an opportunity to take an overview of these systems and explore some basic parameters. In particular we can gain an excellent insight into the duty cycles of these systems, the long-term pulse period changes, and the huge range of X-ray luminosities exhibited. In particular by combining these observations with optical data (SALT, OGLE) we can infer some basic astrophysical parameters of the systems such as the activity cycles of Be stars, the magnetic field distribution of the neutron star components and possible evolution constraints on Be-WD systems.