Zobrazeno 1 - 10
of 1 330
pro vyhledávání: '"Pérez García, M."'
Astrophysical compact objects are usually studied using a perfect fluid model. However, in astrophysical processes out-of-equilibrium, dissipative effects become important to describe the dynamics of the system. In this work, we obtain gauge-invarian
Externí odkaz:
http://arxiv.org/abs/2410.18081
Using an effective Lagrangian model inspired by Takami et al. 2015 we qualitatively study the early post-merger of a nearly symmetric binary Neutron Star (BNS) merger event with a non-vanishing ambient fraction of dark matter. For this we first mimic
Externí odkaz:
http://arxiv.org/abs/2408.05226
We perform microscopic simulations of the thermal relaxation of warm neutral plasmas of astrophysical importance. Using Molecular Dynamics we study the thermal relaxation of a hot neutral fluid of finite-size neutron-rich ions kept in a fixed-wall co
Externí odkaz:
http://arxiv.org/abs/2406.01700
Publikováno v:
D. Barba-Gonz\'alez, C. Albertus and M.A. P\'erez-Garc\'ia, MNRAS 528, 3498-3508 (2024)
We present microscopic Molecular Dynamics simulations including the efficient Ewald sum procedure to study warm and dense stellar plasmas consisting of finite-size ion charges immerse in a relativistic neutralizing electron gas. For densities typical
Externí odkaz:
http://arxiv.org/abs/2312.16252
Autor:
Mariani, Mauro, Albertus, Conrado, Alessandroni, M. del Rosario, Orsaria, Milva G., Pérez-García, M. Ángeles, Ranea-Sandoval, Ignacio F.
We investigate the structure of admixed neutron stars with a regular hadronic component and a fraction of fermionic self-interacting dark matter. Using two limiting equations of state for the dense baryonic interior, constructed from piecewise genera
Externí odkaz:
http://arxiv.org/abs/2311.14004
Recently, a resonant state of four neutrons (tetraneutron) with an energy of $E_{4n}=2.37\pm 0.38 \rm{(stat)} \pm 0.44 \rm{(sys)}$ MeV and a width of $\Gamma=1.75\pm 0.22 \rm{(stat)} \pm 0.30 \rm{(sys)}$ MeV was reported. In this work, we analyse the
Externí odkaz:
http://arxiv.org/abs/2307.09418
We calculate the neutrino luminosity in an astrophysical scenario where dark matter is captured by a neutron star which eventually implodes to form a low mass black hole. The Trojan horse scenario involves the collapse of a neutron star (NS) due to t
Externí odkaz:
http://arxiv.org/abs/2304.06746
Publikováno v:
Eur. Phys. J. C (2023) 83:746
Using the quadratic expansion in the photon fields of Euler-Heisenberg (EH) non-linear electrodynamics (NLED) Lagrangian model we study relevant vacuum properties in a scenario involving the propagation of a photon probe in the presence of a backgrou
Externí odkaz:
http://arxiv.org/abs/2212.05086
We use Molecular Dynamics simulations to study the formation and stability of single and multicomponent lattices in the outer crust of Neutron Stars. Including an improved treatment for Gaussian charge distributions of ions we obtain the expressions
Externí odkaz:
http://arxiv.org/abs/2207.14323
Autor:
Pérez-García, M. A., Izzo, L., Barba, D., Bulla, M., Sagués-Carracedo, A., Pérez, E., Albertus, C., Dhawan, S., Prada, F., Agnello, A., Angus, C. R., Bruun, S. H., del Burgo, C., Dominguez-Tagle, C., Gall, C., Goobar, A., Hjorth, J., Jones, D., López-Sánchez, A. R., Sollerman, J.
Publikováno v:
A&A 666, A67 (2022)
The merger of two compact objects of which at least one is a neutron star is signalled by transient electromagnetic emission in a kilonova (KN). This event is accompanied by gravitational waves and possibly other radiation messengers such as neutrino
Externí odkaz:
http://arxiv.org/abs/2204.00022