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astro-ph.SR2026
Surface brightness inhomogeneity on the helium-rich hot subdwarf in the X-ray binary HD 49798
C. Simon Jeffery, Gavin Ramsay
HD 49798 is an X-ray binary consisting of a hot helium-rich subdwarf primary and an accreting compact companion with an orbital period of 1.55 d. TESS observations of its optical l…
astro-ph.SR2026
Circular polarimetry of suspect wind-accreting pre-polars II
Pasi Hakala, Steven Parsons, Gavin Ramsay +2
The origin of white dwarf magnetic fields is an open question. Furthermore, such fields play a vital role in the evolution of interacting binary stars. Here we present a study of w…