Browsing Research Output by Subject "Cosmology"
Now showing items 1-4 of 4
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Chaplygin-gas solutions of f(R) gravity
(World Scientific Publishing, 2016)We explore exact f(R) gravity solutions that mimic Chaplygin-gas inspired CDM cosmology. Starting with the original, generalized and modified Chaplygin gas equations of state, we reconstruct the forms of f(R) Lagrangians. ... -
The fast radio burst luminosity function and death line in the low-twist Magnetar Model
(IOP, 2020)We explore the burst energy distribution of fast radio bursts (FRBs) in the low-twist magnetar model of Wadiasingh & Timokhin (WT19). Motivated by the power-law fluence distributions of FRB 121102, we propose an elementary ... -
Fast radio burst trains from magnetar oscillations
(IOP Publishing, 2020)Quasi-periodic oscillations inferred during rare magnetar giant flare tails were initially interpreted as torsional oscillations of the neutron star (NS) crust, and have been more recently described as global core+crust ... -
Integrability conditions of quasi-Newtonian cosmologies in modified gravity
(World Scientific, 2017)We investigate the integrability conditions of a class of shear-free perfect-fluid cosmological models within the framework of anisotropic fluid sources, applying our results to f(R) dark energy models. Generalizing earlier ...