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The cosmic baryon density fraction ($\Omega_{\rm b}$) is intrinsically correlated with the Hubble constant ($H_0$) through the critical density of the Universe. In the context of the decade-long $H_0$ tension, the significant discrepancy…

宇宙学与河外天体物理 · 物理学 2026-03-13 Ji-Guo Zhang , Ji-Yu Song , Wan-Peng Sun , Ze-Wei Zhao , Jing-Fei Zhang , Xin Zhang

In this Letter, we propose a model-independent method to determine the Hubble constant and curvature simultaneously taking advantage of the possibilities of future space-borne gravitational wave (GW) detector DECIGO in combination with the…

宇宙学与河外天体物理 · 物理学 2024-04-12 Tonghua Liu , Shuo Cao , Marek Biesiada , Yilong Zhang , Jieci Wang

The measurement of the Hubble constant from gravitational wave (GW) sources is one of the independent avenues to shed light on the Hubble tension, which is associated with about an $8\%$ mismatch in the value of the Hubble constant inferred…

This is the fifth and final summary paper of our 15 year program using the Hubble Space Telescope (HST) to determine the Hubble constant using Type Ia supernovae, calibrated with Cepheid variables in nearby galaxies that hosted them.…

天体物理学 · 物理学 2008-11-26 A. Sandage , G. A. Tammann , A. Saha , B. Reindl , F. D. Macchetto , N. Panagia

Different measurements of the Hubble constant ($H_{0}$) are not consistent and a tension between the CMB based methods and cosmic distance ladder based methods has been observed. Measurements from various distance based methods are also…

宇宙学与河外天体物理 · 物理学 2020-06-23 Rahul Kumar Thakur , Shashikant Gupta , Rahul Nigam , PK Thiruvikraman

We present a measurement of the Hubble constant $H_0$ from surface brightness fluctuation (SBF) distances for 63 bright, mainly early-type galaxies out to 100 Mpc observed with the Wide Field Camera 3 Infrared Channel (WFC3/IR) on the…

宇宙学与河外天体物理 · 物理学 2021-04-27 John P. Blakeslee , Joseph B. Jensen , Chung-Pei Ma , Peter A. Milne , Jenny E. Greene

We evaluate the local variance of the Hubble Constant $H_0$ with low-z Type Ia Supernovae (SNe). Our analyses are performed using a hemispherical comparison method in order to test whether taking the bulk flow motion into account can…

宇宙学与河外天体物理 · 物理学 2016-04-27 C. A. P. Bengaly

We show that future observations of binary neutron star systems with electromagnetic counterparts together with the traditional probes of low- and high-redshift Type Ia supernovae (SNe Ia) can help resolve the Hubble tension. The luminosity…

宇宙学与河外天体物理 · 物理学 2020-12-02 Aniket Agrawal , Teppei Okumura , Toshifumi Futamase

Using the measurements of tidal deformation in the binary neutron star (BNS) coalescences can obtain the information of redshifts of gravitational wave (GW) sources, and thus actually the cosmic expansion history can be investigated using…

广义相对论与量子宇宙学 · 物理学 2023-08-31 Shang-Jie Jin , Tian-Nuo Li , Jing-Fei Zhang , Xin Zhang

Kilonovae are approximately thermal transients, produced by mergers of binary neutron stars (BNSs) and NS-black hole binaries. As the optical counterpart of the gravitational wave event GW170817, AT2017gfo is the first kilonova detected…

高能天体物理现象 · 物理学 2023-04-25 Zheng-Yan Liu , Zhe-Yu Lin , Ji-Ming Yu , Hui-Yu Wang , Gibran-Marc Mourani , Wen Zhao , Zi-Gao Dai

In this paper, we propose a self-consistent test for a Hubble constant estimate using galaxy cluster and type Ia supernovae (SNe Ia) observations. The approach consists, in a first step, of obtaining the observational value of the galaxy…

宇宙学与河外天体物理 · 物理学 2023-04-19 Kamal Bora , R. F. L. Holanda

We re-analyze data from the gravitational-wave event GW170817 and its host galaxy NGC4993 to demonstrate the importance of accurate total and peculiar velocities when measuring the Hubble constant using this nearby Standard Siren. We show…

宇宙学与河外天体物理 · 物理学 2020-01-22 Cullan Howlett , Tamara M. Davis

Strongly lensed quasar systems with time delay measurements provide "time delay distances", which are a combination of three angular diameter distances and serve as powerful tools to determine the Hubble constant $H_0$. However, current…

宇宙学与河外天体物理 · 物理学 2019-12-18 Kai Liao , Arman Shafieloo , Ryan E. Keeley , Eric V. Linder

Measurement of the distances to nearby galaxies have improved rapidly in recent decades. The ever-present challenge is to reduce systematic effects, especially as greater distances are probed, and the uncertainties become larger. In this…

宇宙学与河外天体物理 · 物理学 2021-09-29 Wendy L. Freedman

The $L-\sigma$ relation of HII galaxies (HIIGx) calibrated by a distance indicator is a reliable standard candle for measuring the Hubble constant $H_0$. The most straightforward calibration technique anchors them with the first tier of…

宇宙学与河外天体物理 · 物理学 2022-09-13 Jian-Chen Zhang , Kang Jiao , Tingting Zhang , Tong-Jie Zhang , Bo Yu

Proposed space-based gravitational-wave detectors such as BBO and DECIGO can detect ~10^6 neutron-star binaries and determine luminosity distance to the binaries with a high precision. Combining the luminosity distance and…

宇宙学与河外天体物理 · 物理学 2011-05-12 Atsushi Nishizawa , Atsushi Taruya , Shun Saito

The coalescence of binary neutron stars (BNS) is a prolific source of gravitational waves (GWs) and electromagnetic (EM) radiation, offering a dual observational window into the Universe. Lowering the signal-to-noise ratio (S/N) threshold…

高能天体物理现象 · 物理学 2024-10-01 Yun-Fei Du , Emre Seyit Yorgancioglu , Jin-Hui Rao , Ankit Kumar , Shu-Xu Yi , Shuang-Nan Zhang , Shu Zhang

We present a cosmological model-independent determination of the Hubble constant, $H_0$, by combining time-delay measurements from seven TDCOSMO systems, Einstein radius measurements, and Type Ia Supernovae data sourced from the Pantheon+…

宇宙学与河外天体物理 · 物理学 2025-05-28 L. R. Colaço , R. F. L. Holanda , Z. C. Santana , R. Silva

Spectral siren measurements of the Hubble constant ($H_0$) rely on correlations between observed detector-frame masses and luminosity distances. Features in the source-frame mass distribution can induce these correlations. It is crucial,…

高能天体物理现象 · 物理学 2025-11-13 Utkarsh Mali , Reed Essick

This study aims to elucidate the tension in the Hubble constant ($H_0$), a key metric in cosmology representing the universe's expansion rate. Conflicting results from independent measurements such as the Planck satellite mission and the…

宇宙学与河外天体物理 · 物理学 2024-10-01 David Camarena , Valerio Marra