Ambiguity in matter sector for modified gravity involving delta squared L m/delta g mu nu delta g alpha beta and its implications to astrophysics and cosmology

arXiv:2608.04867 · gr-qc, astro-ph.HE · Submitted 2026-08-05 · Read on arXiv

B. N. Jayawiguna, A. Sulaksono

gr-qc, astro-ph.HE

Submitted: 2026-08-05

Comments: 30 pages, 4 figures, under reviewed in European Physical Journal C

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• General Relativity — 7× in this paper
• Core — 1× in this paper · explained in 2 episodes
• Degeneracy — 1× in this paper · explained in 4 episodes
• Elias — 1× in this paper · explained in 2 episodes
• Nonminimal coupling — 1× in this paper · explained in 2 episodes
• Trace — 1× in this paper · explained in 2 episodes
• alpha — 1× in this paper

Sources

• Testing General Relativity with Present and Future Astrophysical Observations
• Compact Objects in Alternative Gravities
• New Constraints on $\Omega_M$, $\Omega_\Lambda$, and w from an Independent Set of Eleven High-Redshift Supernovae Observed with HST
• Measurements of Omega and Lambda from 42 High-Redshift Supernovae
• Observational Evidence from Supernovae for an Accelerating Universe and a Cosmological Constant
• Is Cosmic Speed-Up Due to New Gravitational Physics?
• Black Hole Superradiance in f(R) Gravities
• The Luminous and Carbon-Rich Supernova 2006gz: A Double Degenerate Merger?
• Type Ia Supernova Explosion Models
• The type Ia supernova SNLS-03D3bb from a super-Chandrasekhar-mass white dwarf star
• The underluminous Type Ia Supernova 2005bl and the class of objects similar to SN 1991bg
• A new faint Type Ia Supernova: SN 1997cn in NGC 5490
• Possible existence of super Chandrasekhar mass limit in the matter-curvature coupled gravity
• Exact solutions of f(R) gravity coupled to nonlinear electrodynamics
• Regular black holes in $f(R)$ gravity coupled to nonlinear electrodynamics
• Generalization of Regular Black Holes in General Relativity to $f(R)$ Gravity
• Cosmic acceleration in dust only Universe via energy-momentum powered gravity
• f(R, T, R_\mu\nu T^\mu\nu) gravity phenomenology and \Lambda CDM universe
• Beyond Einstein's General Relativity: Hybrid metric-Palatini gravity and curvature-matter couplings
• Cosmological Models in Energy-Momentum-Squared Gravity

Related papers

• Improving Slow-Roll Estimates in Starobinsky Inflation Using an Analytic Hubble Parameter
• Listening to the Horizon: Probing Near-Horizon Reflectivity with GW250114
• A Pairwise Surrogate for Gravitational-Wave Spectra from Highly Relativistic Vacuum Bubble Collisions
• Tests of General Relativity with Einstein Telescope
• A weakly modelled view of the joint compact-binary mass plane: population structure and spectral-siren cosmology
• Unitary quantum matter-bounce in a universe with a positive cosmological constant