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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

For nearly a century, Einstein's theory of gravity has been the standardtheory for describing gravitational phenomena in our universe. Along with itssuccesses, limitations of the theory from theoretical (e.g., singularities) andobservational (e.g., dark matter/energy) perspectives have appeared. This hasled to proposals that modify or supersede Einstein's theory, and testing thesetheories against data, especially in the strong-field regime, has emerged as anew paradigm in physics in recent years. Along with the completely new avenueof gravitational waves, new and improved techniques based on electromagneticwaves are being used to test general relativity (GR) ever more stringently. Asthe realm beyond GR is unknown, a popular approach is to look fortheory-agnostic deviations from GR/predictions of GR. Here I describe how Ihave used gravitational waves, X-rays, and black hole shadows to putconstraints on some of these theory-agnostic deviations.

Strong field tests of gravity with electromagnetic and gravitational waves