Zobrazeno 1 - 10
of 372
pro vyhledávání: '"de Martino I"'
Publikováno v:
Orthopedic Research and Reviews, Vol Volume 14, Pp 339-349 (2022)
Fabio Mancino,1 Christopher W Jones,1,2 Francesco Benazzo,3,4 Alessandro Singlitico,5 Alessandro Giuliani,5 Ivan De Martino5,6 1Department of Orthopaedics, The Orthopaedic Research Foundation of Western Australia (ORFWA), Fiona Stanley Hospital, Pert
Externí odkaz:
https://doaj.org/article/ed0b275c127c415b89710d29a201a0f8
We consider the optical appearance under a thin accretion disk of a regular black hole with a central de Sitter core implementing $\mathcal{O}(l^2/r^2)$ far-corrections to the Schwarzschild black hole. We use the choice $l=0.25M$, which satisfies rec
Externí odkaz:
http://arxiv.org/abs/2310.11039
We propose a novel nonsingular black-hole spacetime representing a strong deformation of the Schwarzschild solution with mass $M$ by an additional hair $\ell$, which may be hierarchically larger than the Planck scale. Our black-hole model presents a
Externí odkaz:
http://arxiv.org/abs/2211.11585
Publikováno v:
Physics Letters B 790 (2019) 427-435
We analyze axion--photon mixing in the framework of quantum field theory. The condensate structure of the vacuum for mixed fields induces corrections to the oscillation formulae and leads to non-zero energy of the vacuum for the component of the phot
Externí odkaz:
http://arxiv.org/abs/1901.10473
Publikováno v:
Universe 2(4), 34 (2016)
We have constrained the spatial variation of the fine structure constant using multi-frequency measurements of the thermal Sunyaev-Zeldovich effect of 618 X-ray selected clusters. Although our results are not competitive with the ones from quasar abs
Externí odkaz:
http://arxiv.org/abs/1612.06739
Autor:
De Martino, I., Atrio-Barandela, F.
Publikováno v:
MNRAS, 461, 3222-3232 (2016)
We determine the relation between the Comptonization parameter predicted using X-ray data $Y_{C,Xray}$ and the X-ray luminosity $L_X$, both magnitudes derived from ROSAT data, with the Comptonization parameter $Y_{C,SZ}$ measured on {\it Planck} 2013
Externí odkaz:
http://arxiv.org/abs/1606.04983
Autor:
de Martino, I.
Publikováno v:
Phys. Rev. D 93, 124043 (2016)
In the weak field limit, analytic $f(R)$ models of gravity introduce a Yukawa-like correction to the Newtonian gravitational potential. These models have been widely tested at galactic scales and provide an alternative explanation to the dynamics of
Externí odkaz:
http://arxiv.org/abs/1605.08223
Publikováno v:
Phys. Rev. D 94, 083008 (2016)
We propose an improved methodology to constrain spatial variations of the fine structure constant using clusters of galaxies. We use the {\it Planck} 2013 data to measure the thermal Sunyaev-Zeldovich effect at the location of 618 X-ray selected clus
Externí odkaz:
http://arxiv.org/abs/1605.03053
Autor:
de Martino, I., Génova-Santos, R., Atrio-Barandela, F., Ebeling, H., Kashlinsky, A., Kocevski, D., Martins, C. J. A. P.
Publikováno v:
ApJ, 808, 128 (2015)
We constrain the deviation of adiabatic evolution of the Universe using the data on the Cosmic Microwave Background (CMB) temperature anisotropies measured by the {\it Planck} satellite and a sample of 481 X-ray selected clusters with spectroscopical
Externí odkaz:
http://arxiv.org/abs/1502.06707
Analytical $f(R)$-gravity models introduce Yukawa-like corrections to the Newtonian potential in the weak field limit. These models can explain the dynamics of galaxies and cluster of galaxies without requiring dark matter. To test the model, we have
Externí odkaz:
http://arxiv.org/abs/1412.0095