中文
相关论文

相关论文: Constraining $\Lambda$CDM cosmological parameters …

200 篇论文

The goal of this talk is to give an overview of the current status of the development of the Einstein Telescope and Cosmic Explorer ground based gravitational wave (GW) detectors and of their foreseen scientific goals. These detectors will…

广义相对论与量子宇宙学 · 物理学 2025-06-23 Matteo Di Giovanni

21cm emission from residual neutral hydrogen after the epoch of reionization can be used to trace the cosmological power spectrum of density fluctuations. Using a Fisher matrix formulation, we provide a detailed forecast of the constraints…

天体物理学 · 物理学 2009-11-13 Eli Visbal , Abraham Loeb , Stuart Wyithe

We use Cosmic Microwave Background (CMB) observations together with the Red-sequence Cluster Survey (RCS) weak lensing results to derive constraints on a range of cosmological parameters. This particular choice of observations is motivated…

天体物理学 · 物理学 2008-11-26 Carlo R. Contaldi , Henk Hoekstra , Antony Lewis

We present the prospects for the pre-merger detection and localization of binary neutron star mergers with third generation gravitational-wave observatories. We consider a wide variety of gravitational-wave networks which may be operating…

高能天体物理现象 · 物理学 2021-09-07 Alexander H. Nitz , Tito Dal Canton

Einstein Telescope (ET) is a planned third generation gravitational waves detector located in Europe. Its design will be different from currently build interferometers, because ET will consist of three interferometers rotated by a 60 deg…

宇宙学与河外天体物理 · 物理学 2015-05-25 I. Kowalska-Leszczynska , T. Bulik

Next-generation gravitational-wave detectors will provide unprecedented sensitivity to inspiraling binary neutron stars and black holes, enabling detections at the peak of star formation and beyond. However, the signals from these systems…

天体物理仪器与方法 · 物理学 2024-02-22 Andrew L. Miller , Neha Singh , Cristiano Palomba

We evaluate the ability of future cosmic microwave background (CMB) experiments to measure the power spectrum of large scale structure using quadratic estimators of the weak lensing deflection field. We calculate the sensitivity of upcoming…

天体物理学 · 物理学 2009-11-13 Julien Lesgourgues , Laurence Perotto , Sergio Pastor , Michel Piat

Future gravitational-wave (GW) detectors are expected to detect tens of thousands of compact binary coalescences (CBC) per year, depending also on the final detectors layout. For this reason, it is essential to have a fast, reliable tool…

宇宙学与河外天体物理 · 物理学 2025-06-27 Andrea Begnoni , Stefano Anselmi , Mauro Pieroni , Alessandro Renzi , Angelo Ricciardone

China Space Station Telescope (CSST) is a forthcoming powerful Stage IV space-based optical survey equipment. It is expected to explore a number of important cosmological problems in extremely high precision. In this work, we focus on…

宇宙学与河外天体物理 · 物理学 2022-08-17 Hengjie Lin , Yan Gong , Xuelei Chen , Kwan Chuen Chan , Zuhui Fan , Hu Zhan

As one of Stage IV space-based telescopes, China Space Station Telescope (CSST) can perform photometric and spectroscopic surveys simultaneously to efficiently explore the Universe in extreme precision. In this work, we investigate several…

宇宙学与河外天体物理 · 物理学 2022-12-14 Haitao Miao , Yan Gong , Xuelei Chen , Zhiqi Huang , Xiao-Dong Li , Hu Zhan

The Einstein Telescope (ET) is a third-generation underground gravitational-wave observatory designed to extend the detection sensitivity down to a few Hertz. Newtonian noise is expected to limit the low-frequency sensitivity of ET,…

天体物理仪器与方法 · 物理学 2026-03-17 Patrick Schillings , Shi Yao , Johannes Erdmann , Andreas Rietbrock

Upcoming surveys of the large-scale structure of our Universe will employ a large coverage area of about half of the sky and will significantly increase the observational depth. With these surveys, we will be able to cross-correlate CMB…

宇宙学与河外天体物理 · 物理学 2024-09-10 Chandra Shekhar Saraf , Pawel Bielewicz

We present the implementation of an anomaly-detection algorithm based on a deep convolutional autoencoder for the search for gravitational waves (GWs) in time-frequency spectrograms. Our method targets short-duration ($\lesssim…

广义相对论与量子宇宙学 · 物理学 2026-02-23 Gianluca Inguglia , Huw Haigh , Kristyna Vitulova , Ulyana Dupletsa

We investigate the potentiality of using strong lensing clusters to constrain the cosmological parameters Omega_m and Omega_lambda. The existence of a multiple image system with known redshift allows, for a given (Omega_m, Omega_lambda)…

天体物理学 · 物理学 2009-11-06 G. Golse , J. -P. Kneib , G. Soucail

The interpretation of cosmological observables requires the use of increasingly sophisticated theoretical models. Since these models are becoming computationally very expensive and display non-trivial uncertainties, the use of standard…

宇宙学与河外天体物理 · 物理学 2020-10-14 Marcos Pellejero-Ibañez , Raul E. Angulo , Giovanni Aricó , Matteo Zennaro , Sergio Contreras , Jens Stücker

Cosmic Microwave Background experiments from COBE to Planck, have launched cosmology into an era of precision science, where many cosmological parameters are now determined to the percent level. Next generation telescopes, focussing on the…

宇宙学与河外天体物理 · 物理学 2018-12-26 Claude J. Schmit , Alan F. Heavens , Jonathan R. Pritchard

We present a Bayesian analysis of cosmological parameter constraints from early- and late-universe observations, focusing on the matter density parameter ($\Omega_m$) and the amplitude of matter fluctuations ($\sigma_8$) within the…

宇宙学与河外天体物理 · 物理学 2026-01-13 Manjeet Kunwar , Nabin Bhusal , Manil Khatiwada , Niraj Dhital

Cosmic Dawn, when the first stars and proto-galaxies began to form, is commonly expected to be accompanied by an absorption signature at radio frequencies. This feature arises as Lyman-$\alpha$ photons emitted by these first luminous…

宇宙学与河外天体物理 · 物理学 2020-01-15 Peter H. Sims , Jonathan C. Pober

The purpose of this work is to investigate the prospects of using the future standard siren data without redshift measurements to constrain cosmological parameters. With successful detections of gravitational wave (GW) signals an era of GW…

宇宙学与河外天体物理 · 物理学 2019-04-23 Xuheng Ding , Marek Biesiada , Xiaogang Zheng , Kai Liao , Zhengxiang Li , Zong-Hong Zhu

We investigate generalized Einstein-Aether theories that are compatible with the Planck Cosmic Microwave Background (CMB) temperature anisotropy, polarisation, and lensing data. For a given dark energy equation of state, $w_{\rm de}$, we…

宇宙学与河外天体物理 · 物理学 2019-02-20 Damien Trinh , Francesco Pace , Richard A. Battye , Boris Bolliet