Zobrazeno 1 - 10 of 31 pro vyhledávání: '"Emanuel Gallo"'
1
Akademický článek
Analytical expressions for pulse profile of neutron stars in plasma environments
Autor: Gastón Briozzo, Emanuel Gallo
Publikováno v: European Physical Journal C: Particles and Fields, Vol 83, Iss 2, Pp 1-29 (2023)
Abstract We present an analytical study of light curves of slowly rotating radio pulsars with emphasis on the chromatic effects derived from the presence of a plasma environment; analyzing the effects of the compactness, the metric model, and the ele
Externí odkaz: https://doaj.org/article/d48d0a2a293c45d6934c3cba11679910
Zobrazit plný text záznamu
2
Perturbative and numerical approach to plasma strong lensing
Autor: Gabriel Crisnejo, Emanuel Gallo, Ezequiel F. Boero, Osvaldo M. Moreschi
{Using two different approaches, we study imaging in the strong lens regime taking into account the effects of plasmatic environments on light propagation. First, we extend the use of a perturbative approach that allows us to quickly and analytically
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5152febcce6c06d6c25d3b1343ddbebb
http://arxiv.org/abs/2212.14297
Zobrazit plný text záznamu
3
Analytical expressions for pulse profile of neutron stars in plasma environments
Autor: Gastón Briozzo, Emanuel Gallo
Publikováno v: European Physical Journal
We present an analytical study of light curves of slowly rotating radio pulsars with emphasis on the chromatic effects derived from the presence of a plasma environment; analyzing the effects of the compactness, the metric model, and the electronic p
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::581acb5beaab6cb2f93f97a708a7e14d
http://arxiv.org/abs/2206.14598
Zobrazit plný text záznamu
4
Spherically symmetric black holes and affine-null metric formulation of Einstein’s equations
Autor: Emanuel Gallo, Osvaldo M. Moreschi, Thomas Mädler, Alejandro Perez, Carlos Kozameh
Publikováno v: Phys.Rev.D
Phys.Rev.D, 2021, 104 (8), pp.084048. ⟨10.1103/PhysRevD.104.084048⟩
The definition of well-behaved coordinate charts for black hole spacetimes can be tricky, as they can lead for example to either unphysical coordinate singularities in the metric (e.g. $r=2M$ in the Schwarzschild black hole) or to an implicit depende
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7807d0222e76cd9c886f0f1923c543c2
https://hal.archives-ouvertes.fr/hal-03315384
Zobrazit plný text záznamu
5
Higher order corrections to deflection angle of massive particles and light rays in plasma media for stationary spacetimes using the Gauss-Bonnet theorem
Autor: Gabriel Sebastian Crisnejo, Emanuel Gallo, Kimet Jusufi
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
The purpose of this article is twofold. First, we extend the results presented in [Gabriel Crisnejo and Emanuel Gallo, Phys.Rev.D 97, 124016 (2018)] to stationary spacetimes. Specifically, we show that the Gauss-Bonnet theorem can be applied to descr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d3297a1bcb2356d364e674058fc2b30
https://doi.org/10.1103/physrevd.100.104045
Zobrazit plný text záznamu
6
Gravitational lensing in dispersive media and deflection angle of charged massive particles in terms of curvature scalars and energy-momentum tensor
Autor: Gabriel Sebastian Crisnejo, Emanuel Gallo, J. R. Villanueva
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
In this work we extend the approach used in [Emanuel Gallo and Osvaldo M. Moreschi, Phys. Rev. D 83, 12 083007 (2011)] to the study of weak gravitational lensing in a plasma medium. First, we present expressions for the deflection angle and optical s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7f307ad9b421f856c2fa3fed6f96d728
https://doi.org/10.1103/physrevd.100.044006
Zobrazit plný text záznamu
7
Comment on 'Boosted Kerr black holes in general relativity'
Autor: Emanuel Gallo, Thomas Mädler
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We discuss a recently presented boosted Kerr black hole solution which had already been used by other authors. This boosted metric is based on wrong assumptions regarding asymptotic inertial observers and moreover the performed boost is not a proper
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d31f386e1f46ec7b161069a8fb61c9d7
http://arxiv.org/abs/1906.08761
Zobrazit plný text záznamu
8
Finite distance corrections to the light deflection in a gravitational field with a plasma medium
Autor: Gabriel Sebastian Crisnejo, Emanuel Gallo, Adam Rogers
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
The aim of the present work is twofold: first, we present general remarks about the application of recent procedures to compute the deflection angle in spherically symmetric and asymptotically flat spacetimes, taking into account finite distance corr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e38465197273a9d3db16e878b4d81815
https://link.aps.org/doi/10.1103/PhysRevD.99.124001
Zobrazit plný text záznamu
9
Weak lensing in a plasma medium and gravitational deflection of massive particles using the Gauss-Bonnet theorem. A unified treatment
Autor: Gabriel Sebastian Crisnejo, Emanuel Gallo
Publikováno v: CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
We apply the Gauss-Bonnet theorem to the study of light rays in a plasma medium in a static and spherically symmetric gravitational field and also to the study of timelike geodesics followed for test massive particles in a spacetime with the same sym
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::47359e14a81e31657d249964dc07677a
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje