http://arxiv.org/abs/1710.08370
We demonstrate a method to fully characterize mass-transferring double white dwarf (DWD) systems with a helium-rich (He) WD donor based on the mass-radius relationship for He WDs. Using a simulated Galactic population of DWDs, we show that donor and accretor masses can be inferred for up to $\sim 700$ systems observed by both LISA and Gaia. Half of these systems will have mass constraints $\Delta\,M_{\rm{D}}\lesssim0.09M_{\odot}$ and $\Delta\,M_{\rm{A}}\lesssim1.25\,M_{\odot}$. We also show how the orbital frequency evolution due to astrophysical processes and gravitational radiation can be decoupled from the total orbital frequency evolution for up to $\sim 600$ of these systems.
K. Breivik, K. Kremer, M. Bueno, et. al.
Tue, 24 Oct 17
15/68
Comments: Submitted to ApJ Letters; comments welcome; 8 pages, 4 figures