61 citations · 307 across the 21 of their papers we have counts for
9 papers · 1 filter
Forecast on Gravity with HI 21cm Intensity Mapping Surveys
Yanling Song, Yu Sang, Linfeng Xiao +1
Modified gravity theories offer a well-motivated extension of General Relativity and provide a possible explanation for the late-time accelerated expansion of the Universe. Among t…
Probing the anisotropic distribution of baryon matter in the Universe using fast radio bursts
Hai-Nan Lin, Yu Sang
We propose that fast radio bursts (FRBs) can be used as the probes to constrain the possible anisotropic distribution of baryon matter in the Universe. Monte Carlo simulations show…
The BINGO Project I: Baryon Acoustic Oscillations from Integrated Neutral Gas Observations
Elcio Abdalla, Elisa G. M. Ferreira, Ricardo G. Landim +43
Observations of the redshifted 21-cm line of neutral hydrogen (HI) are a new and powerful window of observation that offers us the possibility to map the spatial distribution of co…
Baryon Acoustic Oscillations from Integrated Neutral Gas Observations: an instrument to observe the 21cm hydrogen line in the redshift range 0.13 z 0.45 -- status update
Carlos A. Wuensche, Elcio Abdalla, Filipe Batoni Abdalla +48
BINGO (BAO from Integrated Neutral Gas Observations) is a unique radio telescope designed to map the intensity of neutral hydrogen distribution at cosmological distances, making th…
Stochastic Gravitational-Wave Background from Axion-Monodromy Oscillons in String Theory During Preheating
Yu Sang, Qing-Guo Huang
Axion monodromy is a generic phenomenon in string compactifications. We investigate the production of gravitational-wave background from axion monodromy inflation during preheating…
Finsler space-time can explain both parity asymmetry and power deficit seen in CMB temperature anisotropies
Zhe Chang, Pranati K. Rath, Yu Sang +2
We propose a framework of Finsler space-time to explain the observed parity asymmetry and the power deficit in the low- () multipole range of co…
Anisotropic power spectrum and the observed low-l power in PLANCK CMB data
Zhe Chang, Pranati K. Rath, Yu Sang +1
In this work, we study a direction dependent power spectrum in anisotropic Finsler space-time. We use this direction dependent power spectrum to address the low-l power observed in…
A tomographic test of cosmological principle using the JLA compilation of type Ia supernovae
Zhe Chang, Hai-Nan Lin, Yu Sang +1
We test the cosmological principle by fitting a dipolar modulation of distance modulus and searching for an evolution of this modulation with respect to cosmological redshift. Base…
Local probes strongly favor CDM against power-law and universe
Hai-Nan Lin, Xin Li, Yu Sang
We constrain three cosmological models, i.e. the concordance cold dark matter plus a cosmological constant (CDM) model, Power-law (PL) model, and model using the availa…