Zobrazeno 1 - 10
of 80
pro vyhledávání: '"Avellar, M."'
Autor:
Horvath, J. E., Rocha, L. S., de Sá, L. M., Moraes, P. H. R. S., Barão, L. G., de Avellar, M. G. B., Bernardo, A., Bachega, R. R. A.
Context: Recently, Doroshenko and collaborators reported a very low-mass compact star, a Central Compact Object named XMMU J173203.3-344518 inside the supernova remnant HESS J1731-347. Its tiny mass is at odds with all calculations of minimum masses
Externí odkaz:
http://arxiv.org/abs/2303.10264
Fast Radio Bursts as crustal dynamical events induced by magnetic field evolution in young magnetars
We revisit in this work a model for repeating Fast Radio Bursts based of the release of energy provoked by the magnetic field dynamics affecting a magnetar's crust. We address the basics of such a model by solving the propagation of the perturbation
Externí odkaz:
http://arxiv.org/abs/2106.15030
Autor:
Lobato, R., Lourenço, O., Moraes, P. H. R. S., Lenzi, C. H., de Avellar, M., de Paula, W., Dutra, M., Malheiro, M.
In this work we investigate neutron stars (NS) in $f(\mathcal{R,T})$ gravity for the case $R+2\lambda\mathcal{T}$, $\mathcal{R}$ is the Ricci scalar and $\mathcal{T}$ the trace of the energy-momentum tensor. The hydrostatic equilibrium equations are
Externí odkaz:
http://arxiv.org/abs/2009.04696
Autor:
Horvath, J. E., Bernardo, A., Rocha, L. S., Valentim, R., Moraes, P. H. R. S., de Avellar, M. G. B.
We suggest in this note that "spider" systems are the naturally expected progenitors of the highest neutron star masses, and possibly low-mass black holes, based on their long-term evolutionary features and actual mass measurements.
Comment: To
Comment: To
Externí odkaz:
http://arxiv.org/abs/2006.06398
The search for the true ground state of the dense matter remains open since Bodmer, Terazawa and other raised the possibility of stable quarks, boosted by Witten's $strange$ $matter$ hypothesis in 1984. Within this proposal, the strange matter is ass
Externí odkaz:
http://arxiv.org/abs/1906.11311
(abridged) We studied the energy and frequency dependence of the Fourier time lags and intrinsic coherence of the kHz QPOs in the NS LMXBs 4U 1608-52 and 4U 1636-53 using RXTE data. In both sources we confirmed energy-dependent soft lags of 10-100 \m
Externí odkaz:
http://arxiv.org/abs/1302.6464
Publikováno v:
Physical Review D 84, 043004 (2011)
The exact composition of a specific class of compact stars, historically referred to as "neutron stars", is still quite unknown. Possibilities ranging from hadronic to quark degrees of freedom, including self-bound versions of the latter have been pr
Externí odkaz:
http://arxiv.org/abs/1107.5845
Autor:
Avellar, M. G. B., Horvath, J. E.
Publikováno v:
Int.J.Mod.Phys.D19:1937-1955,2010
We construct and compare a variety of simple models for strange stars, namely, hypothetical self-bound objects made of a cold stable version of the quark-gluon plasma. Exact, quasi-exact and numerical models are examined to find the most economical d
Externí odkaz:
http://arxiv.org/abs/1006.4629
Autor:
Avellar, M. C. W.1 (AUTHOR) avellar@unifesp.br, Ribeiro, C. M.1 (AUTHOR), Dias-da-Silva, M. R.2 (AUTHOR), Silva, E. J. R.3 (AUTHOR)
Publikováno v:
Andrology. Sep2019, Vol. 7 Issue 5, p690-702. 13p.
Akademický článek
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