Gravitational Higgs Mechanism in Neutron Star Interiors

Autor: Michael Horbatsch, Andrew J. Coates, Thomas P. Sotiriou

We suggest that nonminimally coupled scalar fields can lead to modifications of the microphysics in the interiors of relativistic stars. As a concrete example, we consider the generation of a non-zero photon mass in such high-density environments. Th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8dbff043a239889e0611e1a091c0f98a
http://arxiv.org/abs/1606.03981

Testing general relativity with present and future astrophysical observations

Autor: Flávio S. Coelho, Helvi Witek, Pablo Laguna, Enrico Barausse, C.P. Burgess, Juan Carlos Degollado, Burkhard Kleihaus, João G. Rosa, Hans A. Winther, Ryuichi Fujita, Richard O'Shaughnessy, S. Mirshekari, Emanuele Berti, Hirotada Okawa, Carlos A. R. Herdeiro, Tyson Littenberg, Ulrich Sperhake, Jutta Kunz, Tjonnie G. F. Li, Hector O. Silva, Saeed Kamali, James Healy, Ryan N. Lang, Paolo Pani, Daniela D. Doneva, Paulo C. C. Freire, Brett Bolen, Caixia Gao, Justin Alsing, Norbert Wex, Kostas D. Kokkotas, Michael Horbatsch, Sarah Caudill, Pedro G. Ferreira, Leo C. Stein, Vitor Cardoso, Laleh Sadeghian, Antoine Klein, Leonardo Gualtieri, Eugen Radu, Antonio De Felice, Kent Yagi, Miguel Zilhão, Davide Gerosa, Liang Chen, Marco O. P. Sampaio, Hajime Sotani, Chris Van Den Broeck, Mir Emad Aghili, Andrew Matas, Bangalore Suryanarayana Sathyaprakash, Luca Bombelli, Tessa Baker

Publikováno v: NASA Astrophysics Data System
Repositório Científico de Acesso Aberto de Portugal
Repositório Científico de Acesso Aberto de Portugal (RCAAP)
instacron:RCAAP
Classical and Quantum Gravity
Classical and Quantum Gravity, 2015, 32, ⟨10.1088/0264-9381/32/24/243001⟩

One century after its formulation, Einstein's general relativity has made remarkable predictions and turned out to be compatible with all experimental tests. Most of these tests probe the theory in the weak-field regime, and there are theoretical and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d3847807476b58e0aca056d5b007cad5
http://hdl.handle.net/10281/325489

Light scalar field constraints from gravitational-wave observations of compact binaries

Autor: Leonardo Gualtieri, Justin Alsing, Emanuele Berti, Michael Horbatsch

Scalar-tensor theories are among the simplest extensions of general relativity. In theories with light scalars, deviations from Einstein's theory of gravity are determined by the scalar mass m_s and by a Brans-Dicke-like coupling parameter \omega_{BD

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d26e960485df6b36ae5e526ed31842e

Tensor-multi-scalar theories: relativistic stars and 3 + 1 decomposition.

Autor: Michael Horbatsch, Hector O Silva, Davide Gerosa, Paolo Pani, Emanuele Berti, Leonardo Gualtieri, Ulrich Sperhake

Publikováno v: Classical & Quantum Gravity; 10/22/2015, Vol. 32 Issue 20, p1-1, 1p