The White Dwarf Binary Survey (WDB)

摘要: 5 The Messenger 190| 2023 the mechanisms that govern its dynamical heating. Moreover, by using the WD ages we will analyse the dependency between age, magnetic activity, and rotation in MS stars. Finally, these wide binaries will allow the mass-radius relation for WDs to be tested. To achieve these goals, we will use the 4MOST spectra of the MS companions of these WDs to measure their composition, effective temperatures, surface gravities and radial velocities and to detect signs of magnetic activity.