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arxiv: 1710.08370 · v3 · pith:SXHHG2V3new · submitted 2017-10-23 · 🌌 astro-ph.SR · astro-ph.HE· gr-qc

Characterizing accreting double white dwarf binaries with the Laser Interferometer Space Antenna and Gaia

Katelyn Breivik , Kyle Kremer , Michael Bueno , Shane L. Larson , Scott Coughlin , Vassiliki Kalogera This is my paper
classification 🌌 astro-ph.SR astro-ph.HEgr-qc
keywords systemsantennadeltadonordoubledwarfevolutionfrequency
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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 $\sim\, 60$ systems observed by both Laser Interferometer Space Antenna (LISA) and Gaia. Half of these systems will have mass constraints $\Delta\,M_{\rm{D}}\lesssim0.2M_{\odot}$ and $\Delta\,M_{\rm{A}}\lesssim2.3\,M_{\odot}$. 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 $\sim 50$ of these systems.

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