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The fundamental nature and origin of dark energy are one of the premier mysteries of theoretical physics. In General Relativity Theory, the cosmological constant $\Lambda$ is the simplest explanation for dark energy. On the other hand, the…

广义相对论与量子宇宙学 · 物理学 2022-05-27 Raja Solanki , Avik De , Sanjay Mandal , P. K. Sahoo

Quasars have recently been used as an absolute distance indicator, extending the Hubble diagram to high redshift to reveal a deviation from the expansion history predicted for the standard, $\Lambda$CDM cosmology. Here we show that the…

宇宙学与河外天体物理 · 物理学 2021-06-14 Lorenzo Speri , Nicola Tamanini , Robert R. Caldwell , Jonathan R. Gair , Benjamin Wang

We constrain the Hu-Sawicki and Starobinsky $f(R)$ gravity models utilizing current electromagnetic (PP+CC, Planck and DESI2) datasets and simulate standard siren catalogs based on the resulting best-fit parameters. We demonstrate that the…

宇宙学与河外天体物理 · 物理学 2026-02-05 Yi Zhang , Xuanjun Niu , Xianfu Su , Dong-Ze He

We show that the loudest extreme mass-ratio inspirals (EMRIs) detected by the future space-based gravitational wave detector LISA can be used as dark standard sirens, statistically matching their sky localisation region with mock galaxy…

宇宙学与河外天体物理 · 物理学 2021-09-30 Danny Laghi

In this paper, we ponder observational constraints on the modified $f(R,T)$ gravity, where the gravitational action is a function of Ricci scalar $R$ plus the trace of the energy-momentum tensor $T$, regarding the functional form…

广义相对论与量子宇宙学 · 物理学 2025-05-01 Mahnaz Asghari , Ahmad Sheykhi

We investigate the constraint ability of the gravitational wave (GW) as the standard siren on the cosmological parameters by using the third-generation gravitational wave detector: the Einstein Telescope. We simulate the luminosity…

宇宙学与河外天体物理 · 物理学 2017-02-21 Rong-Gen Cai , Tao Yang

We present the first joint gravitational-wave cosmological inference with LISA extreme mass-ratio inspirals at $z\lesssim1$ (galaxy redshifts) and massive black hole binaries at $z\gtrsim1$ (electromagnetic counterparts). Combining these…

In this paper we analyze the implications of gravitational waves (GWs) as standard sirens on the modified gravity models by using the third-generation gravitational wave detector, i.e., the Einstein Telescope. Two viable models in $f(R)$…

宇宙学与河外天体物理 · 物理学 2021-05-05 Yu Pan , Yuan He , JingZhao Qi , Jin Li , Shuo Cao , Tonghua Liu , Jun Wang

Detection of gravitational waves produced by merger of binary compact objects could provide an independent way for measuring the luminosity distance to the gravitational-wave burst source, indicating that gravitational-wave observation,…

宇宙学与河外天体物理 · 物理学 2019-03-15 Xuan-Neng Zhang , Ling-Feng Wang , Jing-Fei Zhang , Xin Zhang

Recently, some theoretical models predicted that a small fraction of fast radio bursts (FRBs) could be associated with gravitational waves (GWs). In this work, we discuss the possibility of using GW/FRB association systems, if commonly…

宇宙学与河外天体物理 · 物理学 2018-06-27 Jun-Jie Wei , Xue-Feng Wu , He Gao

Inspired by an exponential $f(R)$ gravity model studied in the literature, in this work we introduce a new and viable $f(Q)$ gravity model, which can be represented as a perturbation of $\Lambda$CDM. Typically, within the realm of $f(Q)$…

宇宙学与河外天体物理 · 物理学 2024-01-31 A. Oliveros , Mario A. Acero

We present a new $f(Q)$ cosmological model capable of reproducing late-time acceleration, i.e. $f\left( Q\right) = \lambda_{0}\left( \lambda +Q\right) ^{n}$ by supporting certain parametrization of the Hubble parameter. By using…

广义相对论与量子宇宙学 · 物理学 2023-06-26 N. Myrzakulov , M. Koussour , Dhruba Jyoti Gogoi

Gravitational wave standard sirens typically require electromagnetic (EM) data to obtain redshift information to constrain cosmology. Difficult to find EM counterparts for bright sirens and galaxy survey systematics for dark sirens make…

宇宙学与河外天体物理 · 物理学 2024-04-23 Ignacio Magaña Hernandez , Anarya Ray

We use 47 gravitational-wave (GW) standard sirens from the third Gravitational-Wave Transient Catalog to calibrate distances in the strong gravitational lensing (SGL) system RXJ1131-1231 and constrain the Hubble constant ($H_0$) via the…

宇宙学与河外天体物理 · 物理学 2025-06-03 Ji-Yu Song , Jing-Zhao Qi , Jing-Fei Zhang , Xin Zhang

We investigate the evolution of linear perturbations in the Symmetric Teleparallel Gravity, namely $f(Q)$ gravity, for which we design the $f(Q)$ function to match specific expansion histories. We consider different evolutions of the…

宇宙学与河外天体物理 · 物理学 2022-02-10 Inês S. Albuquerque , Noemi Frusciante

Gravitational wave signal from the inspiral of stellar-mass binary black hole can be used as standard sirens to perform cosmological inference. This inspiral covers a wide range of frequency bands, from the millihertz band to the…

宇宙学与河外天体物理 · 物理学 2022-02-01 Liang-Gui Zhu , Ling-Hua Xie , Yi-Ming Hu , Shuai Liu , En-Kun Li , Nicola R. Napolitano , Bai-Tian Tang , Jian-dong Zhang , Jianwei Mei

Space-borne gravitational wave detectors like TianQin are expected to detect GW signals emitted by the mergers of massive black hole binaries. Luminosity distance information can be obtained from GW observations, and one can perform…

宇宙学与河外天体物理 · 物理学 2022-04-05 Liang-Gui Zhu , Yi-Ming Hu , Hai-Tian Wang , Jian-dong Zhang , Xiao-Dong Li , Martin Hendry , Jianwei Mei

Motivated by future gravitational waves observations, we perform forecasts analysis to constrain a possible time variation of the fine structure constant ($\alpha$) within the context of the so-called runaway dilaton model. For this…

宇宙学与河外天体物理 · 物理学 2023-10-20 L. R. Colaço , R. F. L. Holanda , Rafael C. Nunes , J. E. Gonzalez

In the next decades, it is necessary to forge new late-universe cosmological probes to precisely constrain the Hubble constant and the equation of state of dark energy simultaneously. In this work, we show that the four typical…

宇宙学与河外天体物理 · 物理学 2023-06-26 Peng-Ju Wu , Yue Shao , Shang-Jie Jin , Xin Zhang

To investigate the model and extra frictional effects in standard siren simulation of $f(Q)$ cosmologies, we simulated three types of standard siren data based on different fiducial models ($\Lambda$CDM and $f(Q)$ models). Both effects are…

广义相对论与量子宇宙学 · 物理学 2025-03-14 Xianfu Su , Dongze He , Yi Zhang