Pith. sign in

REVIEW

Generalized McVittie geometry in Horndeski gravity with matter

Not yet reviewed by Pith; the record is open.

Re-run · record.json Download PDF Read on arXiv ↗

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 2204.09693 v1 pith:6EN7ZHD2 submitted 2022-04-20 gr-qc astro-ph.COhep-th

Generalized McVittie geometry in Horndeski gravity with matter

Marcello Miranda , Daniele Vernieri , Salvatore Capozziello , Valerio Faraoni This is my paper
classification gr-qc astro-ph.COhep-th
keywords mcvittiecentralgeneralizedgravitationalgravityhorndeskimatterobject
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
read the original abstract

We investigate McVittie and generalized McVittie solutions for Horndeski gravity with a spatially homogeneous gravitational scalar field, which is stealth at small scales near the central object but, at large scales, sources the FLRW universe in which the central inhomogeneity is embedded. Unlike previous studies, we include matter and obtain generalized McVittie solutions in the extended cuscuton model. The possible configurations are classified according to the time-dependence of the gravitational coupling, the radial energy flow, the accretion rate onto the central object, and the Hubble rate.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.