Zobrazeno 1 - 10
of 47
pro vyhledávání: '"de Avellar, Marcio G B"'
Autor:
Horvath, J. E., de Sá, Lucas M., Rocha, Lívia S., Chinen, Gustavo Y., Barão, Lucas G., de Avellar, Márcio G. B.
We address in this work the nature and evolution of the long-period compact star sources, which has recently added several unexpected members. The central hypothesis is that particle winds drive their evolution, being an important factor for these re
Externí odkaz:
http://arxiv.org/abs/2402.06866
Autor:
Rocha, Lívia S., Horvath, Jorge E., de Sá, Lucas M., Chinen, Gustavo Y., Barão, Lucas G., de Avellar, Marcio G. B.
Matter at ultra-high densities finds a physical realization inside neutron stars. One key property is their maximum mass, which has far-reaching implications for astrophysics and the equation of state of ultra dense matter. In this work, we employ Ba
Externí odkaz:
http://arxiv.org/abs/2312.13244
Autor:
de Avellar, Marcio G B, Junior, Alexandre A S, Lopes, André H G, Carneiro, André L S, Pereira, João A, da Cunha, Davi C B D
We explore confidential computing in the context of CBDCs using Microsoft's CCF framework as an example. By developing an experiment and comparing different approaches and performance and security metrics, we seek to evaluate the effectiveness of con
Externí odkaz:
http://arxiv.org/abs/2304.04833
Autor:
de Avellar, Marcio G. B., Beaklini, Pedro P. B., Nunes, Sílvia P., Moraes, Pedro H. R. S., Malheiro, Manuel
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 509, Issue 4, February 2022, Page 5357
We propose a new model for Fast Radio Bursts (FRBs) based on a sudden discharge of a charged young magnetar, caused by the short falling timescale of oppositely charged particles onto the magnetar. In this scenario, curvature radiation is emitted by
Externí odkaz:
http://arxiv.org/abs/2112.09782
Autor:
Altair, Thiago, Sartori, Larissa M., Rodrigues, Fabio, de Avellar, Marcio G. B., Galante, Douglas
Certain subterranean environments of Earth have naturally accumulated long-lived radionuclides, such as 238U, 232Th and 40K, near the presence of liquid water. In these natural radioactive environments (NRE), water radiolysis can produce chemical spe
Externí odkaz:
http://arxiv.org/abs/2011.14839
Autor:
Horvath, Jorge E., Rocha, Lívia S., Bernardo, Antônio L. C., de Avellar, Marcio G. B., Valentim, Rodolfo
We give in this Chapter an overview of the problem of neutron star mass distribution, the issue of the maximum mass as inferred from the existing sample and the new gravitational wave events, and the connection with the formation events. It is shown
Externí odkaz:
http://arxiv.org/abs/2011.08157
Autor:
Beaklini, Pedro P. B., Quadros, Allan V. C., de Avellar, Marcio G. B., Dantas, Maria L. L., Cançado, André L. F.
Since the discovery of Quasi-stellar Objects (QSOs), also known as quasars, they have been traditionally subdivided as radio-loud and radio-quiet sources. Whether such division is a misleading effect from a highly heterogeneous single population of o
Externí odkaz:
http://arxiv.org/abs/2007.07271
Autor:
Ribeiro, Evandro M., Méndez, Mariano, de Avellar, Marcio G. B., Zhang, Guobao, Karpouzas, Konstantinos
We present for the neutron-star low-mass X-ray binary 4U 1636$-$53, and for the first time for any source of kilohertz quasi-periodic oscillations (kHz QPOs), the two-dimensional behaviour of the fractional rms amplitude of the kHz QPOs in the parame
Externí odkaz:
http://arxiv.org/abs/1908.08462
There have been many efforts to explain the dynamical mechanisms behind the phenomenology of quasi-periodic oscillations (QPOs) seen in the X-ray light curves of low-mass X-ray binaries. Up to now, none of the models can successfully explain all the
Externí odkaz:
http://arxiv.org/abs/1709.07706
While there are many dynamical mechanisms and models that try to explain the origin and phenomenology of the quasi-periodic oscillations (QPOs) seen in the X-ray light curves of low-mass X-ray binaries, few of them address how the radiative processes
Externí odkaz:
http://arxiv.org/abs/1605.09532