Neutron stars in f(R) gravity with perturbative constraints
Journal Article
·
· Physical Review. D, Particles Fields
- Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)
We study the structure of neutron stars in f(R) gravity theories with perturbative constraints. We derive the modified Tolman-Oppenheimer-Volkov equations and solve them for a polytropic equation of state. We investigate the resulting modifications to the masses and radii of neutron stars and show that observations of surface phenomena alone cannot break the degeneracy between altering the theory of gravity versus choosing a different equation of state of neutron-star matter. On the other hand, observations of neutron-star cooling, which depends on the density of matter at the stellar interior, can place significant constraints on the parameters of the theory.
- OSTI ID:
- 21421175
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 82, Issue 6; Other Information: DOI: 10.1103/PhysRevD.82.064033; (c) 2010 American Institute of Physics; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interior spacetimes of stars in Palatini f(R) gravity
Neutron stars in $$f(\mathtt {R,L_m})$$ gravity with realistic equations of state: joint-constrains with GW170817, massive pulsars, and the PSR J0030+0451 mass-radius from NICER data
Central speed of sound, the trace anomaly, and observables of neutron stars from a perturbative analysis of scaled Tolman-Oppenheimer-Volkoff equations
Journal Article
·
Wed Aug 15 00:00:00 EDT 2007
· Physical Review. D, Particles Fields
·
OSTI ID:21421175
Neutron stars in $$f(\mathtt {R,L_m})$$ gravity with realistic equations of state: joint-constrains with GW170817, massive pulsars, and the PSR J0030+0451 mass-radius from NICER data
Journal Article
·
Thu Nov 18 00:00:00 EST 2021
· European Physical Journal. C, Particles and Fields
·
OSTI ID:21421175
Central speed of sound, the trace anomaly, and observables of neutron stars from a perturbative analysis of scaled Tolman-Oppenheimer-Volkoff equations
Journal Article
·
Mon Nov 27 00:00:00 EST 2023
· Physical Review. D.
·
OSTI ID:21421175