Zobrazeno 1 - 10
of 3 258
pro vyhledávání: '"Test of gravity"'
The experimental verification of the Newton law of gravity at small scales has been a longstanding challenge. Recently, torsion balance experiments have successfully measured gravitational force at the millimeter scale. However, testing gravity force
Externí odkaz:
http://arxiv.org/abs/2405.16222
Publikováno v:
Monthly Notices of the Royal Astronomical Society, Volume 528, Issue 4, March 2024, Pages 6631
We apply the marked correlation function test proposed by Armijo et al. (Paper I) to samples of luminous red galaxies (LRGs) from the final data release of the Sloan Digital Sky Survey (SDSS) III. The test assigns a density-dependent mark to galaxies
Externí odkaz:
http://arxiv.org/abs/2309.09636
We introduce a new scheme based on the marked correlation function to probe gravity using the large-scale structure of the Universe. We illustrate our approach by applying it to simulations of the metric-variation $f(R)$ modified gravity theory and g
Externí odkaz:
http://arxiv.org/abs/2304.06218
A successful measurement of the Stochastic Gravitational Wave Background (SGWB) in Pulsar Timing Arrays (PTAs) would open up a new window through which to test the predictions of General Relativity (GR). We consider how these measurements might revea
Externí odkaz:
http://arxiv.org/abs/2304.02640
Publikováno v:
Phys. Lett. B 845, 138153 (2023)
When adopted in black hole spacetimes, geometric-optics approximations imply a mapping between the quasinormal mode (QNM) spectrum of black holes in the eikonal limit and black hole images. In particular, the real part and the imaginary part of eikon
Externí odkaz:
http://arxiv.org/abs/2212.10028
Publikováno v:
PRD 107, 043526 (2023)
We investigate the skewness of galaxy number density fluctuations as a possible probe to test gravity theories. We find that the specific linear combination of the skewness parameters corresponds to the coefficients of the second-order kernels of the
Externí odkaz:
http://arxiv.org/abs/2211.13453
Publikováno v:
Phys. Rev. D 107, 063514, 2023
We propose a novel method to measure the $E_G$ statistic from clustering alone. The $E_G$ statistic provides an elegant way of testing the consistency of General Relativity by comparing the geometry of the Universe, probed through gravitational lensi
Externí odkaz:
http://arxiv.org/abs/2208.10419
Autor:
Cheng Y; Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China. chengyu@sjtu.edu.cn.; Key Laboratory for Particle Astrophysics and Cosmology (MOE) and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai, 200240, China. chengyu@sjtu.edu.cn., Lin J; Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Key Laboratory for Particle Astrophysics and Cosmology (MOE) and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai, 200240, China., Sheng J; Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Key Laboratory for Particle Astrophysics and Cosmology (MOE) and Shanghai Key Laboratory for Particle Physics and Cosmology, Shanghai Jiao Tong University, Shanghai, 200240, China., Yanagida TT; Tsung-Dao Lee Institute and School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China.; Kavli IPMU (WPI), UTIAS, University of Tokyo, Kashiwa, 277-8583, Japan.
Publikováno v:
Scientific reports [Sci Rep] 2024 Dec 28; Vol. 14 (1), pp. 30985. Date of Electronic Publication: 2024 Dec 28.
Publikováno v:
Nature [Nature] 2024 Nov; Vol. 635 (8038), pp. 261.
The dynamics of isolated galaxy pairs represents an important tool to investigate the behavior of gravity in the low acceleration regime. Statistical analysis of a large sample of galaxy pairs led to the noticeable discovery of a region of preferred
Externí odkaz:
http://arxiv.org/abs/2112.03637