Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Eliana Chaverra"'
Publikováno v:
Physical Review D. 93
We discuss the quasi-normal oscillations of black holes which are sourced by a nonlinear electrodynamic field. While previous studies have focused on the computation of quasi-normal frequencies for the wave or higher spin equation on a fixed backgrou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e47eb4ceafaba2a7320f7c0dbaa50b8
https://doi.org/10.1103/physrevd.93.123013
https://doi.org/10.1103/physrevd.93.123013
Autor:
Eliana Chaverra, Olivier Sarbach
Publikováno v:
General Relativity and Gravitation. 48
In recent work, we analyzed the dynamics of spherical and nonspherical acoustic perturbations of the Michel flow, describing the steady radial accretion of a relativistic perfect fluid into a nonrotating black hole. We showed that such perturbations
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8de0eff3ab66855956f9c12150bbbed5
https://doi.org/10.1007/s10714-015-2007-0
https://doi.org/10.1007/s10714-015-2007-0
We analyze the properties of a polytropic fluid which is radially accreted into a Schwarzschild black hole. The case where the adiabatic index gamma lies in the range 1 < gamma
Comment: 13 pages, 3 figures
Comment: 13 pages, 3 figures
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4834505c3ef86dff4404e829e2a03e7
http://arxiv.org/abs/1511.07728
http://arxiv.org/abs/1511.07728
We study spherical and nonspherical linear acoustic perturbations of the Michel flow, which describes the steady radial accretion of a perfect fluid into a nonrotating black hole. The dynamics of such perturbations are governed by a scalar wave equat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::65f4a142298e76980e8eb058901343e8
http://arxiv.org/abs/1501.01637
http://arxiv.org/abs/1501.01637
Autor:
Olivier Sarbach, Eliana Chaverra
We analyze the steady radial accretion of matter into a nonrotating black hole. Neglecting the self-gravity of the accreting matter, we consider a rather general class of static, spherically symmetric and asymptotically flat background spacetimes wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cbce2ccde7396f7724b99b81666f5820
http://arxiv.org/abs/1501.01641
http://arxiv.org/abs/1501.01641
Autor:
Mikhail E. Gusakov, Christopher P. L. Berry, Mateusz Wisniewicz, T. Paumard, Georgios Lukes-Gerakopoulos, Jeandrew Brink, Ilya Mandel, Odele Straub, Peggy Varniere, I. W. Harry, Jonathan R. Gair, Magda Szkudlarek, Wlodek Kluzniak, Viktoriya S. Morozova, D. Gondek-Rosinska, Bobomurat Ahmedov, F. H. Vincent, Andrew Melatos, A. I. Chugunov, E. M. Kantor, Mark Hannam, Stephen Fairhurst, Shuang Yong Zhou, M. Coleman Miller, Chris L. Fryer, Eliana Chaverra, Leonardo Gualtieri, Cosimo Bambi, Nikolaos Stergioulas, Clifford M. Will, Olindo Zanotti, Anna Studzinska, Gabriel Török, Duncan A. Brown, M. Wildner, Kent Yagi, H. Meheut, Marcin Kucaba
Publikováno v:
General Relativity and Gravitation
General Relativity and Gravitation, Springer Verlag, 2014, 46 (5), ⟨10.1007/s10714-014-1688-0⟩
General Relativity and Gravitation, 2014, 46 (5), pp.1688. ⟨10.1007/s10714-014-1688-0⟩
General Relativity and Gravitation, Springer Verlag, 2014, 46 (5), ⟨10.1007/s10714-014-1688-0⟩
General Relativity and Gravitation, 2014, 46 (5), pp.1688. ⟨10.1007/s10714-014-1688-0⟩
International audience; We report the recent advances in Relativistic Astrophysics as presented at the GR20 meeting in Warsaw, Poland, in July 2013
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::090bcc02a4cea3b7cc6a890f39131917
https://hdl.handle.net/11858/00-001M-0000-001A-10FE-211858/00-001M-0000-0024-BF2C-1
https://hdl.handle.net/11858/00-001M-0000-001A-10FE-211858/00-001M-0000-0024-BF2C-1
Publikováno v:
Physical Review D. 87
We present a new covariant, gauge-invariant formalism describing linear metric perturbation fields on any spherically symmetric background in general relativity. The advantage of this formalism relies in the fact that it does not require a decomposit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e601000e9e8ade9139b972e2c0f0c6b
https://doi.org/10.1103/physrevd.87.044015
https://doi.org/10.1103/physrevd.87.044015
Autor:
Eliana Chaverra, Olivier Sarbach
Publikováno v:
AIP Conference Proceedings.
We study the Michel flow on a spherically symmetric black hole background for a polytropic equation of state. Based on standard tools from the theory of dynamical systems, we prove that for a polytropic index γ lying between 1 < γ ≤ 5/3 there exi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe22787abe6245bd35cf2739ea4b1876
https://doi.org/10.1063/1.4748534
https://doi.org/10.1063/1.4748534
Michel accretion of a polytropic fluid with adiabatic index : global flows versus homoclinic orbits.
Publikováno v:
Classical & Quantum Gravity; 5/19/2016, Vol. 33 Issue 10, p1-1, 1p
Autor:
Eliana Chaverra, Olivier Sarbach
Publikováno v:
Classical & Quantum Gravity; 8/6/2015, Vol. 32 Issue 15, p1-1, 1p