Zobrazeno 1 - 10
of 2 412
pro vyhledávání: '"Gong, Bo"'
Autor:
Tiwari, Prabhakar, Schwarz, Dominik J., Zhao, Gong-Bo, Durrer, Ruth, Kunz, Martin, Padmanabhan, Hamsa
We utilize the Sloan Digital Sky Survey (SDSS) extended Baryon Oscillation Spectroscopic Survey (eBOSS) and Baryon Oscillation Spectroscopic Survey (BOSS) catalogs with precise spectroscopic redshifts to estimate the kinematic redshift dipole caused
Externí odkaz:
http://arxiv.org/abs/2409.09946
Autor:
Wang, Zhuangfei, Saadeh, Daniela, Koyama, Kazuya, Pogosian, Levon, Bose, Benjamin, Yi, Lanyang, Zhao, Gong-Bo
Modified Growth with CAMB (MGCAMB) is a patch for the Einstein-Boltzmann solver CAMB for cosmological tests of gravity. Until now, MGCAMB was limited to scales well-described by linear perturbation theory. In this work, we extend the framework with a
Externí odkaz:
http://arxiv.org/abs/2406.09204
The value of the Hubble constant determined from CMB and BAO measurements is directly dependent on the sound horizon at the photon-baryon decoupling. There has been significant interest in the possibility of new physics at the epoch around recombinat
Externí odkaz:
http://arxiv.org/abs/2405.20306
Scattering resonances have important applications in many areas of science and engineering. They are the replacement of discrete spectral data for problems on non-compact domains. In this paper, we consider the computation of scattering resonances de
Externí odkaz:
http://arxiv.org/abs/2404.09300
Publikováno v:
Res. Astron. Astrophys. 24, 065002 (2024)
We extract key information of dark energy from current observations of BAO, OHD and $H_0$, and find hints of dynamical behaviour of dark energy. In particular, a dynamical dark energy model whose equation of state crosses $-1$ is favoured by observat
Externí odkaz:
http://arxiv.org/abs/2404.06310
We develop methods to extract key dark energy information from cosmic distance measurements including the BAO scales and supernovae luminosity distances. Demonstrated using simulated datasets of the complete DESI, LSST and Roman surveys designed for
Externí odkaz:
http://arxiv.org/abs/2404.06303
Autor:
Wang, Yuting, Zhao, Ruiyang, Zhai, Zhongxu, Koyama, Kazuya, Percival, Will J., Guo, Hong, Li, Yin, Zhao, Gong-Bo, Nishimichi, Takahiro, Gil-Marín, Héctor, Feng, Yonghao, Zhang, Hanyu, Wu, Yi
The small-scale linear information in galaxy samples typically lost during non-linear growth can be restored to a certain level by the density field reconstruction, which has been demonstrated for improving the precision of the baryon acoustic oscill
Externí odkaz:
http://arxiv.org/abs/2311.05848
Autor:
Zhao, Ruiyang, Mu, Xiaoyong, Gsponer, Rafaela, Donald-McCann, Jamie, Feng, Yonghao, Zhang, Weibing, Wang, Yuting, Zhao, Gong-Bo, Koyama, Kazuya, Bacon, David, Crittenden, Robert G.
We perform a multitracer full-shape analysis in Fourier space based on the effective field theory of large-scale structure (EFTofLSS) using the complete Sloan Digital Sky Survey IV (SDSS-IV) extended Baryon Oscillation Spectroscopic Survey (eBOSS) DR
Externí odkaz:
http://arxiv.org/abs/2308.06206
The Baryon Acoustic Oscillations (BAO) feature in the clustering of galaxies or quasars provides a ``standard ruler" for distance measurements in cosmology. In this work, we report a $2\sim3\sigma$ signal of the BAO dip feature in the galaxy density-
Externí odkaz:
http://arxiv.org/abs/2306.09407
Autor:
Wang, Zhuangfei, Mirpoorian, Seyed Hamidreza, Pogosian, Levon, Silvestri, Alessandra, Zhao, Gong-Bo
Publikováno v:
JCAP08(2023)038
We present a new version of MGCAMB, a patch for the Einstein-Boltzmann solver CAMB for cosmological tests of gravity. New features include a new cubic-spline parameterization allowing for a simultaneous reconstruction of $\mu$, $\Sigma$ and the dark
Externí odkaz:
http://arxiv.org/abs/2305.05667