2021/10/31 by Vincenzo Ventriglia, Ventriglia, Vincenzo
Earth and Planetary Sciences · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #FOS: Physical sciences #General Relativity and Quantum Cosmology (gr-qc) #Geophysics and Gravity Measurements #High Energy Astrophysical Phenomena (astro-ph.HE) #Pulsars and Gravitational Waves Research
paper · pdf · doi:10.48550/arxiv.2111.00542
openalex publication_date 2021/10/31 · openalex created_date 2022/07/25 · openalex updated_date 2026/07/28
Considering extreme-mass-ratio inspirals along with the conservative dynamics\nof gravitational self-force, we compare viable theories of gravity. In\nparticular, by examining a Schwarzschild background we analyse the\nself-force-induced corrections to gauge-invariant benchmarks given by the\norbital frequency at the ISCO and the spin-precession rate. Moreover, following\nan established indication of modifications to the equations of motion in\nextended theories of gravity, we exploit a phenomenological approach, relying\non the variability of the gravitational constant G, to incorporate these\nmodifications. We find that conservative effects shape up to be a test-bed for\ntheories of gravity, allowing us to contrast General Relativity with competing\ntheories. By examining strong-field constraints, we highlight a wide margin of\ninvestigation in the context of LISA Mission.\n