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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We investigate a purely stellar dynamical solution to the Final ParsecProblem. Galactic nuclei resulting from major mergers are not spherical, butshow some degree of triaxiality. With $N$-body simulations, we show thatmassive black hole binaries (MBHB) hosted by them will continuously interactwith stars on centrophilic orbits and will thus inspiral---in much less than aHubble time---down to separations at which gravitational wave (GW) emission isstrong enough to drive them to coalescence. Such coalescences will be importantsources of GWs for future space-borne detectors such as the {\it LaserInterferometer Space Antenna} (LISA). Based on our results, we expect that LISAwill see between $\sim 10$ to $\sim {\rm few} \times 10^2$ such events everyyear, depending on the particular MBH seed model as obtained in recent studiesof merger trees of galaxy and MBH co-evolution. Orbital eccentricities in theLISA band will be clearly distinguishable from zero with $e \gtrsim0.001-0.01$.

Fast coalescence of massive black hole binaries from mergers of galactic nuclei: implications for low-frequency gravitational-wave astrophysics