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

Numerical relativity has seen incredible progress in the last years, and isbeing applied with success to a variety of physical phenomena, fromgravitational-wave research and relativistic astrophysics to cosmology andhigh-energy physics. Here we probe the limits of current numerical setups, bystudying collisions of unequal mass, non-rotating black holes of mass-ratios upto 1:100 and making contact with a classical calculation in General Relativity:the infall of a point-like particle into a massive black hole.  Our results agree well with the predictions coming from linearizedcalculations of the infall of point-like particles into non-rotating blackholes. In particular, in the limit that one hole is much smaller than theother, and the infall starts from an infinite initial separation, we recoverthe point-particle limit. Thus, numerical relativity is able to bridge the gapbetween fully non-linear dynamics and linearized approximations, which may haveimportant applications. Finally, we also comment on the "spurious" radiationcontent in the initial data and the linearized predictions.

Extreme black hole simulations: collisions of unequal mass black holes and the point particle limit