4 papers
Do We Have Sufficient Knowledge of the Galactic Foreground Emission in Cosmic Microwave Background Science?
Jia-Rui Li, Peibo Yuan, Yi-Fu Cai +1
Galactic foreground emission plays a key role in cosmic microwave background (CMB) science, particularly for detecting primordial gravitational waves. A well-known lesson is the ``…
Constraints on large-scale polarization in northern hemisphere
Dongdong Zhang, Bo Wang, Jia-Rui Li +2
Present cosmic microwave background (CMB) observations have significantly advanced our understanding of the universe's origin, especially with primordial gravitational waves (PGWs)…
Implications of scattering for CMB foreground emission modelling
Jia-Rui Li, Jacques Delabrouille, Yi-Fu Cai +1
Context. The extreme precision and accuracy of forthcoming observations of CMB temperature and polarization anisotropies, aiming to detect the tiny signatures of primordial gravita…
A narrow-band parameterization for the stochastic gravitational wave background
Tianyi Xie, Dongdong Zhang, Jie Jiang +3
In light of the non-perturbative resonance effects that may occur during inflation, we introduce a parametrization for the power spectrum of the stochastic gravitational wave backg…