Measuring the Galactic Binary Fluxes with LISA: Metamorphoses and Disappearances of White Dwarf Binaries

Abstract

The space gravitational wave detector LISA is expected to detect $\sim 10^4$ of nearly monochromatic binaries, after $\sim 10$yr operation. We propose to measure the inspiral/outspiral binary fluxes in the frequency space, by processing tiny frequency drifts of these numerous binaries. Rich astrophysical information is encoded in the frequency dependencies of the two fluxes, and we can read the long-term evolution of white dwarf binaries, resulting in metamorphoses or disappearances. This measurement will thus help us to deepen our understanding on the strongly interacting exotic objects. Using a simplified model for the frequency drift speeds, we discuss the primary aspects of the flux measurement, including the prospects with LISA.

5 pages, 4 figures, accepted for publication in PRL

References in corpus (5)

• A Solution to the Galactic Foreground Problem for LISA
• The Thermal Evolution of the Donors in AM CVn Binaries
• Accreting Double white dwarf binaries: Implications for LISA
• Evolution of Close White Dwarf Binaries
• Dynamical Tides in Compact White Dwarf Binaries: Influence of Rotation

Cited by in corpus (1)

• Identifying Disappearance of a White Dwarf Binary with LISA