Neutron stars structure in the context of massive gravity
Seyed Hossein Hendi,Gholam Hossein Bordbar,Gholam Hossein Bordbar,B. Eslam Panah,Shahram Panahiyan,Shahram Panahiyan +5 more
TLDR
In this paper, the structure of a spin$-2$ massive gravitons was studied in the presence of massive gravity in the form of a Neutron Star and the modifications of the TOV equation were explored in $4$ and higher dimensions.Abstract:
Motivated by the recent interests in spin$-2$ massive gravitons, we study the structure of neutron star in the context of massive gravity. The modifications of TOV equation in the presence of massive gravity are explored in $4$ and higher dimensions. Next, by considering the modern equation of state for the neutron star matter (which is extracted by the lowest order constrained variational (LOCV) method with the AV$18$ potential), different physical properties of the neutron star (such as Le Chatelier's principle, stability and energy conditions) are investigated. It is shown that consideration of the massive gravity has specific contributions into the structure of neutron star and introduces new prescriptions for the massive astrophysical objects. The mass-radius relation is examined and the effects of massive gravity on the Schwarzschild radius, average density, compactness, gravitational redshift and dynamical stability are studied. Finally, a relation between mass and radius of neutron star versus the Planck mass is extracted.read more
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Stellar structure models in modified theories of gravity: Lessons and challenges
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Journal ArticleDOI
Light Particles with Spin in Inflation
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Relativistic stars in vector-tensor theories
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TL;DR: This is the first direct detection of gravitational waves and the first observation of a binary black hole merger, and these observations demonstrate the existence of binary stellar-mass black hole systems.
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Black Holes, White Dwarfs, and Neutron Stars
TL;DR: In this paper, the soft file of a book collection of black holes white dwarfs and neutron stars can be downloaded and the book can be found on-line in this site.
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Paul Demorest,Timothy T. Pennucci,Scott M. Ransom,Mallory S. E. Roberts,Jason W. T. Hessels,Jason W. T. Hessels +5 more
TL;DR: Radio timing observations of the binary millisecond pulsar J1614-2230 that show a strong Shapiro delay signature are presented and the pulsar mass is calculated to be (1.97 ± 0.04)M⊙, which rules out almost all currently proposed hyperon or boson condensate equations of state.
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