Results 21 to 30 of about 116,070 (271)

Rapidly rotating neutron stars in $$f(R,T)=R+2 \lambda T$$ f ( R , T ) = R + 2 λ T gravity

European Physical Journal C: Particles and Fields, 2023
In this work, we study the influence of f(R, T) gravity on rapidly rotating neutron stars. First we discuss the main aspects of this modified theory of gravity where the gravitational Lagrangian is an arbitrary function of the Ricci scalar R and of the ...
F. M. da Silva, L. C. N. Santos, C. E. Mota, T. O. F. da Costa, J. C. Fabris   +4 more
doaj   +1 more source

Detecting supersymmetric Q-balls with neutron stars [PDF]

, 1998
Supersymmetric Q-balls trapped in neutron stars or white dwarfs may cause the stars to explode. Trapping of Q-balls in neutron stars is shown to be less likely, but trapping in neutron star progenitors more likely than hitherto assumed, making neutron ...
Coleman, Colpi, De Rújula, Dimopoulos, Freese, Ipser, Jes Madsen, Kusenko, Kusenko, Kusenko, Madsen, Madsen, Madsen, Sikivie, Sumiyoshi, Witten   +15 more
core   +2 more sources

Multi-Wavelength Polarimetry of Isolated Neutron Stars

Galaxies, 2018
Isolated neutron stars are known to be endowed with extreme magnetic fields, whose maximum intensity ranges from 10 12 – 10 15 G, which permeates their magnetospheres. Their surrounding environment is also strongly magnetized, especially in
Roberto P. Mignani
doaj   +1 more source

Many Aspects of Magnetic Fields in Neutron Stars

Universe, 2018
In this work, we explore different aspects in which strong magnetic fields play a role in the composition, structure and evolution of neutron stars. More specifically, we discuss (i) how strong magnetic fields change the equation of state of dense matter,
Rodrigo Negreiros, Cristian Bernal, Veronica Dexheimer, Orlenys Troconis   +3 more
doaj   +1 more source

Neutron stars and strange stars in the chiral SU(3) quark mean field model [PDF]

, 2005
We investigate the equations of state for pure neutron matter and strange hadronic matter in $\beta$-equilibrium, including $\Lambda$, $\Sigma$ and $\Xi$ hyperons. The masses and radii of pure neutron stars and strange hadronic stars are obtained.
A. G. Williams, A. W. Thomas, A. W. Thomas, B. D. Serot, D. B. Leinweber, M. H. van Kerkwijk, N. K. Glendenning, P. Wang, P. Wang, S. Lawley, W. Baade   +10 more
core   +2 more sources

Boson and neutron stars with increased density

Physics Letters B, 2020
We discuss boson stars and neutron stars, respectively, in a scalar-tensor gravity model with an explicitly time-dependent real scalar field. While the boson stars in our model – in contrast to the neutron stars – do not possess a hard core, we find that
Yves Brihaye, Ludovic Ducobu, Betti Hartmann   +2 more
doaj   +1 more source

Evolution of Neutron Star Magnetic Fields

Universe, 2021
Neutron stars are natural physical laboratories allowing us to study a plethora of phenomena in extreme conditions. In particular, these compact objects can have very strong magnetic fields with non-trivial origin and evolution.
Andrei P. Igoshev, Sergei B. Popov, Rainer Hollerbach   +2 more
doaj   +1 more source

What can neutron stars reveal about the equation of state of dense matter? [PDF]

EPJ Web of Conferences, 2020
Neutron stars are astrophysical objects of extremes, reaching the highest densities we can observe in the cosmos, and probing matter under conditions that cannot be recreated in terrestrial experiments.
Tews Ingo
doaj   +1 more source

Structure of Quark Stars [PDF]

, 2012
This paper gives an brief overview of the structure of hypothetical strange quarks stars (quark stars, for short), which are made of absolutely stable 3-flavor strange quark matter.
Orsaria, Milva, Rodrigues, Hilario, Weber, Fridolin, Yang, Shu-Hua   +3 more
core   +2 more sources

R-modes in accreting and young neutron stars [PDF]

, 2001
Recent work has raised the exciting possibility that r-mode pulsations (Rossby waves) in rotating neutron star cores may be strong gravitational wave sources.
Ushomirsky, Greg
core   +1 more source