Zobrazeno 1 - 10
of 241
pro vyhledávání: '"Velásquez, J. P."'
Publikováno v:
J. Phys. G: Nucl. Part. Phys. 50 015203, 2023
One of the prominent decay modes of heavy nuclei which are produced in astrophysical environments at temperatures of the order of $10^9$ K is the $\alpha$ ($^4$He) decay. Thermally enhanced $\alpha$ decay rates are evaluated within the standard schem
Externí odkaz:
http://arxiv.org/abs/2212.03983
Publikováno v:
Phys. Rev. C 105, 034311 (2022)
It is common to study the strong decay of a heavy nucleus as a tunneling phenomenon where the $\alpha$ ($^4$He) or a light nuclear cluster tunnels through the Coulomb barrier formed by its interaction with the heavier daughter nucleus. The position a
Externí odkaz:
http://arxiv.org/abs/2203.08363
Akademický článek
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Publikováno v:
Eur. Phys. J. C (2019) 79: 802
In this work, starting from a spherically symmetric polytropic black hole, a rotating solution is obtained by following the Newman--Janis algorithm without complexification. Besides studying the horizon, the static conditions and causality issues of
Externí odkaz:
http://arxiv.org/abs/1905.11443
Publikováno v:
Phys. Rev. C99, 024308 (2019)
Different models for the nonlocal description of the nuclear interaction are compared through a study of their effects on the half-lives of radioactive nuclei decaying by the emission of alpha particles. The half-lives are evaluated by considering a
Externí odkaz:
http://arxiv.org/abs/1901.09020
Autor:
Ramirez-Velasquez, J. M., Sigalotti, L. Di G., Gabbasov, R., Cruz, F., Klapp, J., Contreras, Ernesto
Publikováno v:
A&A 631, A13 (2019)
In this paper, we present the classical Bondi accretion theory for the case of non-isothermal accretion processes onto a supermassive black hole (SMBH), including the effects of X-ray heating and the radiation force due to electron scattering and spe
Externí odkaz:
http://arxiv.org/abs/1902.00360
Publikováno v:
Eur. Phys. J. C (2019) 79:53
In this work we study steady and spherical relativistic dust accretion onto a static and spherically symmetric scale--dependent black hole. In particular we consider a polytropic scale--dependent black hole as a central object and obtain that the rad
Externí odkaz:
http://arxiv.org/abs/1810.07356
We present three-dimensional calculations of spherically symmetric Bondi accretion onto a stationary supermassive black hole (SMBH) of mass $10^{8}$ $M_{\odot}$ within a radial range of $0.02-10$ pc, using a modified version of the smoothed particle
Externí odkaz:
http://arxiv.org/abs/1803.11478
Autor:
Gabbasov, Ruslan, Sigalotti, Leonardo Di G., Cruz, Fidel, Klapp, J., Ramírez-Velasquez, J. M.
We study the consistency and convergence of smoothed particle hydrodynamics (SPH), as a function of the interpolation parameters, namely the number of particles $N$, the number of neighbors $n$, and the smoothing length $h$, using simulations of the
Externí odkaz:
http://arxiv.org/abs/1701.08209
Akademický článek
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