Novel stellar astrophysics from extended gravity

  title={Novel stellar astrophysics from extended gravity},
  author={Artyom V Astashenok and Salvatore Capozziello and Sergey D. Odintsov and Vasilis K. Oikonomou},
  journal={Europhysics Letters},
Novel implications on neutron stars come from extended gravity. Specifically, the GW190814 event indicated the probability of having large mass stars in the mass gap region . If the secondary component of GW190814 is a neutron star, such large masses are marginally supported by General Relativity (GR), since a very stiff Equation of State (EoS) would be needed to describe such large mass neutron stars, which would be incompatible with the GW170817 event, without any modification of gravity. In… Expand


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100805 (arXiv:2103.07725 [gr-qc])
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Abstract We investigate the causal limit of maximum mass for stars in the framework of f ( R ) gravity. We choose a causal equation of state, with variable speed of sound, and with the transitionExpand
  • Dark Univ. 32
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