Zobrazeno 1 - 10
of 379
pro vyhledávání: '"Sobrinho, J"'
Autor:
Sobrinho, J. L. G., Augusto, P.
Some of the Intermediate Mass Black Hole (IMBH) candidates observed at the center of galaxies or in globular clusters and some of the Supermassive Black Holes (SMBHs) seen at the center of many galaxies might be of primordial origin. Indeed, Primordi
Externí odkaz:
http://arxiv.org/abs/2404.07332
Autor:
Bezerra-Sobrinho, J., Medeiros, L. G.
Publikováno v:
JCAP01(2023)039
In the context of effective theories of gravity, a minimalist bottom-up approach which takes into account $1$-loop quantum corrections leads to modifications in the Einstein-Hilbert action through the inclusion of four extra terms: $R^{2}$, $C_{\kapp
Externí odkaz:
http://arxiv.org/abs/2202.13308
Publikováno v:
Phys. Rev. D 105, 063504 (2022)
The most current observational data corroborate the Starobinsky model as one of the strongest candidates in the description of an inflationary regime. Motivated by such success, extensions of the Starobinsky model have been increasingly recurrent in
Externí odkaz:
http://arxiv.org/abs/2110.15502
Autor:
Sobrinho, J. L. G., Augusto, P.
Publikováno v:
Mon. Not. Roy. Astron. Soc. 496 (1), 60-66 (2020)
Primordial Black Holes (PBHs) might have formed in the early Universe due to the collapse of density fluctuations. PBHs may act as the sources for some of the gravitational waves recently observed. We explored the formation scenarios of PBHs of stell
Externí odkaz:
http://arxiv.org/abs/2005.10037
Publikováno v:
Mon. Not. Roy. Astron. Soc. 463 (3), 2348-2357 (2016)
Primordial Black Holes (PBHs) might have formed in the early Universe as a consequence of the collapse of density fluctuations with an amplitude above a critical value $\delta_{c}$: the formation threshold. Although for a radiation-dominated Universe
Externí odkaz:
http://arxiv.org/abs/1609.01205
Autor:
Sobrinho, J. L. G., Augusto, P.
Publikováno v:
Mon. Not. Roy. Astron. Soc. 441 (2), 2878-2884 (2014)
Many black hole (BH) candidates exist, ranging from supermassive ($\sim10^{6}$--$10^{10}$ M$_{\odot}$) to stellar masses ($\sim 1$--$100$ M$_{\odot}$), all of them identified by indirect processes. Although there are no known candidate BHs with sub-s
Externí odkaz:
http://arxiv.org/abs/1406.1785
Autor:
Sobrinho, J L G, Augusto, P
Publikováno v:
Monthly Notices of the Royal Astronomical Society: Letters; Jun2024, Vol. 531 Issue 1, pL40-L44, 5p
Making use of the quantum correlators associated with the Maxwell field vacuum distorted by the presence of plane parallel material surfaces we derive the Casimir-Polder interaction in the presence of plane parallel conducting walls and in the presen
Externí odkaz:
http://arxiv.org/abs/quant-ph/0311032
We evaluate the quantum correlators associated with the Maxwell field vacuum distorted by the presence of plane parallel material surfaces. Regularization is performed through the generalized zeta funtion technique. Results are applied to a local ana
Externí odkaz:
http://arxiv.org/abs/hep-th/0007201
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