Zobrazeno 1 - 10
of 441
pro vyhledávání: '"Duarte, Sérgio"'
We analyze the effect of a Chaplygin dark fluid (CDF) core on neutron stars (NSs). To address this study, we focus on the relativistic structure of stellar configurations composed by a dark-energy core, described by a Chaplygin-like equation of state
Externí odkaz:
http://arxiv.org/abs/2412.13568
Autor:
Bruner, Julia, Adams, Kyle, Grey, Skylar, Aghaee, Mahya, Duarte, Sergio, Zarrinpar, Ali, Moore, Helen
Liver transplant can be a life-saving procedure for patients with end-stage liver disease. With the introduction of modern immunosuppressive therapies, short-term survival has significantly improved. However, long-term survival has not substantially
Externí odkaz:
http://arxiv.org/abs/2411.17789
Publikováno v:
Phys. Rev. D 110 (2024) 124019
By considering realistic equations of state (EoSs) to describe the ordinary matter of the stellar crust, in this study, we explore the effect of a dark energy core, made of Chaplygin Dark Fluid (CDF), on neutron stars (NSs). To accomplish this purpos
Externí odkaz:
http://arxiv.org/abs/2411.08793
Publikováno v:
Phys. Rev. D 109 (2024) 023524
As a potential candidate for the late-time accelerating expansion of the Universe, the Chaplygin gas and its generalized models have significant implications to modern cosmology. In this work we investigate the effects of dark energy on the internal
Externí odkaz:
http://arxiv.org/abs/2401.01961
Publikováno v:
Phys. Rev. D 108, 083006 - Published 5 October 2023
We perform an improvement in a thermodynamical consistent model with density dependent quark masses ($m'_{u,d,s}$) by introducing effects of quark confinement/deconfinement phase transition, at high density regime and zero temperature, by means of th
Externí odkaz:
http://arxiv.org/abs/2311.04393
Autor:
Pretel, Juan M. Z., Jorás, Sergio E., Reis, Ribamar R. R., Duarte, Sergio B., Arbañil, José D. V.
Publikováno v:
Phys. Dark Universe 43 (2024) 101394
The macroscopic properties of compact stars in modified gravity theories can be significantly different from the general relativistic (GR) predictions. Within the gravitational context of scalar-tensor theories, with a scalar field $\phi$ and couplin
Externí odkaz:
http://arxiv.org/abs/2308.00203
Autor:
Pretel, Juan M. Z., Arbañil, José D. V., Duarte, Sergio B., Jorás, Sergio E., Reis, Ribamar R. R.
Publikováno v:
JCAP 09 (2022) 058
We provide the modified TOV equations for the hydrostatic equilibrium of charged compact stars within the metric $f(R)$ gravitational background. We adopt the MIT bag model EoS for the dense matter and assume a charge distribution where the electric
Externí odkaz:
http://arxiv.org/abs/2206.03878
Publikováno v:
In Journal of Urban Mobility December 2024 6
Autor:
Muturi, Harrison T., Ghadieh, Hilda E., Asalla, Suman, Lester, Sumona G., Belew, Getachew D., Zaidi, Sobia, Abdolahipour, Raziyeh, Shrestha, Abhishek P., Portuphy, Agnes O., Stankus, Hannah L., Helal, Raghd Abu, Verhulst, Stefaan, Duarte, Sergio, Zarrinpar, Ali, van Grunsven, Leo A., Friedman, Scott L., Schwabe, Robert F., Hinds, Terry D., Jr., Kumarasamy, Sivarajan, Najjar, Sonia M.
Publikováno v:
In Molecular Metabolism October 2024 88
Autor:
Pretel, Juan M. Z., Duarte, Sergio B.
Publikováno v:
Class. Quantum Grav. 39 (2022) 155003
Within the metric formalism of $f(R)$ theories of gravity, where $R$ is the Ricci scalar, we study the hydrostatic equilibrium structure of compact stars with the inclusion of anisotropic pressure. In particular, we focus on the $f(R)= R^{1+\epsilon}
Externí odkaz:
http://arxiv.org/abs/2202.04467