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- W3100453104 abstract "In this paper, we study the Jeans analysis in the context of energy-momentum-squared gravity (EMSG). More specifically we find the new Jeans mass for non-rotating infinite mediums as the smallest mass scale for local perturbations that can be stable against its own gravity. Furthermore, for rotating mediums, specifically for rotating thin disks in the context of EMSG, we find a new Toomre-like criterion for the local gravitational stability. Finally, the results are applied to a hyper-massive neutron star, as an astrophysical system. Using a simplified toy model we have shown that, for a positive (negative) value of the EMSG parameter $alpha$, the system is stable (unstable) in a wide range of $alpha$. On the other hand, no observational evidence has been reported on the existence of local fragmentation in HMNS. Naturally, this means that EMSG with positive $alpha$ is more acceptable from the physical point of view." @default.
- W3100453104 created "2020-11-23" @default.
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- W3100453104 date "2020-02-01" @default.
- W3100453104 modified "2023-10-16" @default.
- W3100453104 title "Jeans analysis in energy–momentum-squared gravity" @default.
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- W3100453104 doi "https://doi.org/10.1140/epjc/s10052-020-7662-y" @default.
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