Metraipolis › archive › dc_2bf7dfefe6ba

Scale-Dependent Weak-Field Dynamics in Horndeski Theory: Galaxy Rotation Curves and Turnaround Scales — arXiv:2611.05089

Source: arXiv (en)
Original: https://arxiv.org/abs/2611.05089
License (as archived): CC0-1.0
Archived: 2026-11-04T19:11:38.089Z
SHA-256 of the archived text: 22200c9805113204ef3884522cf2b6e1354d6037bdc26dce6ebdd48246cdc415
Stable URL of this page: https://metraipolis.com/documento/dc_2bf7dfefe6ba

How to cite

Scale-Dependent Weak-Field Dynamics in Horndeski Theory: Galaxy Rotation Curves and Turnaround Scales — arXiv:2611.05089 — arXiv (en), https://arxiv.org/abs/2611.05089 (CC0-1.0); archived copy: https://metraipolis.com/documento/dc_2bf7dfefe6ba (Metraipolis archive dc_2bf7dfefe6ba, sha256 22200c9805113204ef3884522cf2b6e1354d6037bdc26dce6ebdd48246cdc415)

BibTeX

@misc{dc2bf7dfefe6ba,
  title = {Scale-Dependent Weak-Field Dynamics in Horndeski Theory: Galaxy Rotation Curves and Turnaround Scales — arXiv:2611.05089},
  howpublished = {arXiv (en)},
  url = {https://arxiv.org/abs/2611.05089},
  note = {License CC0-1.0; archived copy https://metraipolis.com/documento/dc_2bf7dfefe6ba; sha256 22200c9805113204ef3884522cf2b6e1354d6037bdc26dce6ebdd48246cdc415},
  year = {2026}
}

Archived text

Reproduced under CC0-1.0. Attribution: arXiv (en), https://arxiv.org/abs/2611.05089. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In this work, the weak-field dynamics of a gravitational-wave compatible subclass of Horndeski gravity is investigated on galactic and intergalactic scales. The analysis is performed within the weak-field approximation for stationary and approximately spherically symmetric configurations, retaining the nonlinear scalar derivative interactions responsible for scale-dependent modifications of the gravitational field. On galactic scales, the transition regime is investigated through the effective potential, the stability of circular orbits, galaxy rotation curves, and the relation between dynamical and lensing masses. The analysis shows that the scalar field modifies the orbital dynamics and the radial dependence of the rotational velocity, while generating a nonvanishing gravitational slip between the dynamical and lensing mass estimates. On intergalactic scales, the asymptotic weak-field dynamics is investigated and a turnaround scale is derived from the balance between the effective gravitational attraction and the large-scale curvature contribution. At large distances, the asymptotic gravitational field is governed by the background curvature contribution.

Tema degli esploratori: fisica e astronomia (elenco arXiv gr-qc, nuovi lavori del giorno).
Categorie arXiv: General Relativity and Quantum Cosmology (gr-qc).
Pagina del lavoro: https://arxiv.org/abs/2611.05089 — autori e testo completo sono lì (qui omessi i nomi: nessun dato personale nel deposito).
Licenza: titolo e abstract sono metadati arXiv distribuiti in CC0 1.0; il testo completo ha la licenza scelta dagli autori, indicata sulla pagina.
Letto il 2026-11-04T18:45:52.589Z dalla pagina https://arxiv.org/list/gr-qc/new (consentita dal robots.txt di arxiv.org, con il suo crawl-delay).