Dynamics of pulsational mode in the EiBI gravity fabric

Das, Mritunjoy; Karmakar, Pralay Kumar

doi:10.1016/j.cjph.2023.11.032

Chinese Journal of Physics

2024

DOI: 10.1016/j.cjph.2023.11.032

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Dynamics of pulsational mode in the EiBI gravity fabric

Mritunjoy Das,

Pralay Kumar Karmakar

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Cited by 2 publications

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Nonlinear Jeans instability analysis of gravitating astrofluids in Eddington-inspired Born-Infeld gravity framework

Das,

Karmakar

2024

Chinese Journal of Physics

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Nonlinear Jeans instability analysis of gravitating astrofluids in Eddington-inspired Born-Infeld gravity framework

Das,

Karmakar

2024

Chinese Journal of Physics

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Pulsational mode stability in complex EiBI-gravitating polarized astroclouds with (r,q)-distributed electrons

Ray,

Karmakar

2024

J. Cosmol. Astropart. Phys.

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The pulsational mode of gravitational collapse (PMGC) originating from the combined gravito-electrostatic interaction in complex dust molecular clouds (DMCs) is a canonical mechanism leading to the onset of astronomical structure formation dynamics. A generalized semi-analytic model is formulated to explore the effects of the Eddington-inspired Born-Infeld (EiBI) gravity, non-thermal (r,q)-distributed electrons, and dust-polarization force on the PMGC stability concurrently. The thermal ions are treated thermo-statistically with the Maxwellian distribution law and the non-thermal electrons with the (r,q)-distribution law. The constitutive partially ionized dust grains are modeled in the fluid fabric. A spherical normal mode analysis yields a generalized linear PMGC dispersion relation. Its oscillatory and propagation characteristics are investigated in a judicious numerical platform. It is found that an increase in the polarization force and positive EiBI parameter significantly enhances the instability, causing the DMC collapse and vice versa. The electron non-thermality spectral parameters play as vital stabilizing factors, and so on. Its reliability and applicability are finally outlined in light of astronomical predictions previously reported in the literature.

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Dynamics of pulsational mode in the EiBI gravity fabric

Cited by 2 publications

References 25 publications

Nonlinear Jeans instability analysis of gravitating astrofluids in Eddington-inspired Born-Infeld gravity framework

Nonlinear Jeans instability analysis of gravitating astrofluids in Eddington-inspired Born-Infeld gravity framework

Pulsational mode stability in complex EiBI-gravitating polarized astroclouds with (r,q)-distributed electrons

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