Joint lensing-kinematics analysis of nine CLASH clusters constrains chameleon gravity, yielding GR-consistent bounds for NFW and Hernquist profiles and |f_R| ≲ 2-5×10^{-5} for f(R) models.
Extra force in f(R) modified theories of gravity.Phys
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In f(R, L_m) gravity, charged wormholes satisfy radial NEC for wide E ranges but tangential NEC only for 0.1 ≤ E ≤ 0.6, with violations linked to throat formation and distinct matter profiles versus compact objects.
Reviews the Layzer-Irvine equation and discusses its prior use in dark matter-dark energy interaction and modified gravity models while suggesting future directions.
citing papers explorer
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CLASH-VLT: The Fifth Force in Chameleon Gravity from Joint Lensing and Kinematics Cluster Mass Profiles
Joint lensing-kinematics analysis of nine CLASH clusters constrains chameleon gravity, yielding GR-consistent bounds for NFW and Hernquist profiles and |f_R| ≲ 2-5×10^{-5} for f(R) models.
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Energy Conditions and Stability of Charged Wormholes in $f(R, \mathscr{L}_m)$ Gravity: A Comparative Analysis with Compact Objects
In f(R, L_m) gravity, charged wormholes satisfy radial NEC for wide E ranges but tangential NEC only for 0.1 ≤ E ≤ 0.6, with violations linked to throat formation and distinct matter profiles versus compact objects.
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Testing the Dark Universe through the Layzer-Irvine Equation
Reviews the Layzer-Irvine equation and discusses its prior use in dark matter-dark energy interaction and modified gravity models while suggesting future directions.