13 papers
Characterising the epoch of reionisation using the cross-correlation of the kSZ effect and CMB lensing
Niall MacCrann, Christopher Cain, Aleksandra Kusiak +5
We investigate the cross-correlation of the kinematic Sunyaev-Zeldovich (kSZ) effect with lensing of the cosmic microwave background (CMB) as a probe of the epoch of reionisation.…
Single Frequency CMB Foreground Removal with Inter-scale Machine Learning
Helen Shao, Fiona McCarthy, Blake D. Sherwin +2
Accurate measurements of Cosmic Microwave Background (CMB) B-mode polarization, a key probe of inflationary physics, are hindered by complex Galactic dust foregrounds. Traditional…
New constraints on primordial non-Gaussianity from large-scale cross-correlations of CMB lensing and the cosmic infrared background
Joseph Thornton, Fiona McCarthy, Carmen Embil Villagra +1
We present new constraints on the local-type primordial non-Gaussianity parameter, , through analysis of the scale-dependent bias effect on the cosmic…
Estimation and mitigation of foregrounds in projected kSZ velocity reconstruction
Carmen Embil Villagra, Fiona McCarthy, Antón Baleato Lizancos +2
The kSZ effect has recently emerged as a powerful probe for precision cosmology through its ability to reconstruct the large-scale velocity field. In particular, the kSZ-reconstruc…
Self-consistent secondary cosmic microwave background anisotropies and extragalactic foregrounds in the FLAMINGO simulations
Tianyi Yang, Ian G. McCarthy, Fiona McCarthy +6
Secondary anisotropies in the cosmic microwave background (CMB) contain information that can be used to test both cosmological models and models of galaxy formation. Starting from…
CMB component-separated power spectrum estimation by Spectral Internal Linear Combination (SpILC)
Jack Y. L. Kwok, William R. Coulton, Niall MacCrann +3
Component separation methods mitigate the cross-contamination between different extragalactic and galactic contributions to cosmic microwave background (CMB) data. This is often do…