English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Galactic short period double white dwarfs (DWD) are guaranteed gravitationalwave (GW) sources for the next generation of space-based interferometerssensitive to low-frequency GWs (10^{-4}- 1 Hz). Here we investigate thepossibility of constraining the white dwarf (WD) properties throughmeasurements of apsidal precession in eccentric binaries. We analyze thegeneral relativistic (GR), tidal, and rotational contributions to apsidalprecession by using detailed He WD models. We find that apsidal precession canlead to a detectable shift in the emitted GW signal, the effect being stronger(weaker) for binaries hosting hot (cool) WDs. We find that in hot (cool) DWDstides dominate the precession at orbital frequencies above ~0.01 mHz (~1 mHz).Analyzing the apsidal precession of these sources only accounting for GR wouldpotentially lead to an extreme overestimate of the component masses. Finally,we derive a relation that ties the radius and apsidal precession constant ofcool WD components to their masses, therefore allowing tides to be used as anadditional mass measurement tool.

Constraining White Dwarf Masses Via Apsidal Precession in Eccentric Double White Dwarf Binaries