Výsledky vyhledávání - "Alternatives to general relativity"

Times of arrival (TOA) of signals in the Kerr-MOG black hole

Autor: Kamal K. Nandi, A. A. Potapov, R. Kh. Karimov, R. N. Izmailov, G. Y. Tuleganova

Publikováno v: General Relativity and Gravitation. 52

Modified gravity (MOG) theories are alternatives to general relativity (GR) that arose primarily from the need to explain the observed galactic flat rotation curves without invoking the elusive dark matter hypothesized by GR. A well known MOG is the

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f8bd71b8992e41434da99579b5f6d7bc
https://doi.org/10.1007/s10714-020-02684-0

Zobrazit plný text záznamu

Magnetic deformation of neutron stars in scalar-tensor theories

Autor: J. Soldateschi, L. Del Zanna, Niccolò Bucciantini

Scalar-tensor theories are among the most promising alternatives to general relativity that have been developed to account for some long standing issues in our understanding of gravity. Some of these theories predict the existence of a non-linear phe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::37da34ec2ed84aec422ebc040cc652dd

Zobrazit plný text záznamu

Scale-invariant alternatives to general relativity. III. The inflation-dark energy connection

Autor: Martin Pauly, Javier Rubio, Georgios K. Karananas, S. Casas

Publikováno v: Phys.Rev.D
Phys.Rev.D, 2019, 99 (6), pp.063512. ⟨10.1103/PhysRevD.99.063512⟩
Physical Review D
Physical Review D, American Physical Society, 2019, 99 (6), pp.063512. ⟨10.1103/PhysRevD.99.063512⟩

We discuss the cosmological phenomenology of biscalar-tensor models displaying a maximally symmetric Einstein-frame kinetic sector and constructed on the basis of scale symmetry and volume-preserving diffeomorphisms. These theories contain a single d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::83073b2a6de397713fabd775ce1ac623
https://hal.science/hal-01937833/file/PhysRevD.99.063512.pdf

Zobrazit plný text záznamu

Universality of free fall from the orbital motion of a pulsar in a stellar triple system

Autor: Ryan S. Lynch, David L. Kaplan, N. V. Gusinskaia, Duncan R. Lorimer, Scott M. Ransom, Adam Deller, Ingrid H. Stairs, Anne M. Archibald, Jason W. T. Hessels

Publikováno v: Nature, 559(7712), 73-76. Nature Publishing Group

Einstein's theory of gravity, general relativity, has passed stringent tests in laboratories, elsewhere in the Solar Sytem, and in pulsar binaries. Nevertheless it is known to be incompatible with quantum mechanics and must differ from the true behav

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2753be02385449c60a0031ac71be1032
https://dare.uva.nl/personal/pure/en/publications/universality-of-free-fall-from-the-orbital-motion-of-a-pulsar-in-a-stellar-triple-system(1188f029-de6d-4dec-a179-d8e36aa990b3).html

Zobrazit plný text záznamu

Stealth configurations in vector-tensor theories of gravity

Autor: Gianmassimo Tasinato, Javier Chagoya

Studying the physics of compact objects in modified theories of gravity is important for understanding how future observations can test alternatives to General Relativity. We consider a subset of vector-tensor Galileon theories of gravity characteriz

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2519a5af409fee62dfb1d2089ddb4f50

Zobrazit plný text záznamu

Scale-invariant alternatives to general relativity. II. Dilaton properties

Autor: Georgios K. Karananas, Mikhail Shaposhnikov

Publikováno v: Physical Review D. 93

In the present paper, we revisit gravitational theories which are invariant under TDiffs -- transverse (volume preserving) diffeomorphisms and global scale transformations. It is known that these theories can be rewritten in an equivalent diffeomorph

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2dc650c3d0eb4d923c0e484a21ed9412
https://doi.org/10.1103/physrevd.93.084052

Zobrazit plný text záznamu

Modified gravity and binary pulsars: the Lorentz violating case

Autor: Diego Blas

The dynamics of binary pulsars can be used to test different aspects of gravitation. This is particularly important to constrain alternatives to general relativity in regimes which are not probed by other methods. In this short contribution, I will d

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5aae18345b818a6b657c6bd2f028eb04

Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání