Monday

Although not as sensitive as Kepler, TESS's wide sky coverage has enabled the asteroseismology of stars in otherwise interesting systems, including known planet hosts. I will summarise recent results from studies of solar-like oscillators—cool stars that oscillate qualitatively like the Sun—that we have led or contributed to through the TESS Asteroseismic Science Consortium (TASC), focussing on HD 38529 and 12 Boo. HD 38529 is a subgiant that hosts a Jupiter-mass planet on an inner ~14-day orbit and a low-mass brown dwarf on a ~6-year orbit. We robustly determined the system's age to be ~3.1 ± 0.4 Gyr, which is important for inferring the properties of the brown dwarf. 12 Boo is an astrometric and spectroscopic binary comprising two similar F-type stars on a ~9.6d. The stars are near the end of the main sequence and, despite precise orbital parameters, their evolutionary state is ambiguous. I report our latest results on detecting and characterising the oscillations in these stars, including the incidental detection of ellipsoidal variations. I will close with some thoughts on the state of and prospects for further asteroseismology of solar-like oscillators with TESS.