The evolution of a hot subdwarf: observations of the pulsating subdwarf B star Feige~48

M. D. Reed, S. D. Kawaler, the Whole Earth Telescope XCov 17 / 21 / 23 teams.

Since pulsating subdwarf B (sdBV or EC14026) stars were first discovered (Kilkenny et al, 1997), observational efforts have tried to realize their potential for constraining the in…