Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Lobato, Ronaldo V."'
Publikováno v:
Physica Scripta, Volume 99, Issue 6, id.065050, 2024
Among the recent extensions to standard General Relativity, $f(R,\mathcal{L}_m)$ gravity has risen an interest given the possibility of coupling between geometry and matter. We examine the simplest model with non-minimal coupling in the context of co
Externí odkaz:
http://arxiv.org/abs/2408.00580
Super-Chandrasekhar white dwarfs are a timely topic in the last years in the scientific community due to its connection to supernovae type Ia (SN Ia). Some early studies tackled the possibility of white dwarfs surpassing the Chandrasekhar limit by me
Externí odkaz:
http://arxiv.org/abs/2303.03243
The description of stellar interior remains as a big challenge for the nuclear astrophysics community. The consolidated knowledge is restricted to density regions around the saturation of hadronic matter $\rho _{0} = 2.8\times 10^{14} {\rm\ g\ cm^{-3
Externí odkaz:
http://arxiv.org/abs/2205.01174
Neutron stars are compact objects of large interest in the nuclear astrophysics community. The extreme conditions present in such systems impose big challenges to our current microscopic models of nuclear structure. Equation of states (EoS) are frequ
Externí odkaz:
http://arxiv.org/abs/2202.13940
Neutron tunneling between neutron-rich nuclei in inhomogeneous dense matter encountered in neutron star crusts can release enormous energy on a short-timescale to power explosive phenomena in neutron stars. In this work we clarify aspects of this pro
Externí odkaz:
http://arxiv.org/abs/2011.14953
Autor:
Arbañil, José D. V., Carvalho, Geanderson A., Lobato, Ronaldo V., Marinho Jr., Rubens M., Malheiro, Manuel
We analyze the influence of extra dimensions on the static equilibrium configurations and stability against radial perturbations. For this purpose, we solve stellar structure equations and radial perturbation equations, both modified for a $d$-dimens
Externí odkaz:
http://arxiv.org/abs/1907.07661
$f(R,T)$ gravity was proposed as an extension of the $f(R)$ theories, containing not just geometrical correction terms to the General Relativity equations, but also material correction terms, dependent on the trace of the energy-momentum tensor $T$.
Externí odkaz:
http://arxiv.org/abs/1803.08630
Publikováno v:
Journal of Physics: Conference Series, Volume 861, conference 1 (2017)
The sources of ultra-high-energy cosmic rays ($E\gtrsim10^{19}$ eV) is still an open question in astroparticle physics and in the last years some efforts were made to understand its origin. In this work we consider white dwarf pulsars (WDPs) as possi
Externí odkaz:
http://arxiv.org/abs/1703.06208
Publikováno v:
Int. J. Mod. Phys. D 25, 1641025 (2016)
The Anomalous X-ray Pulsars (AXPs) and Soft Gamma-ray Repeaters (SGRs) are a class of pulsars understood as neutron stars (NSs) with super strong surface magnetic fields, namely $B\gtrsim10^{14}$ G, and for that reason are known as Magnetars. However
Externí odkaz:
http://arxiv.org/abs/1603.00870
Publikováno v:
Particles (2571-712X); Mar2023, Vol. 6 Issue 1, p198-216, 19p
