Speaker
Jyothis Chandran
(IFCA, Universida de Cantabria)
Description
An all-sky map of the thermal Sunyaev-Zeldovich (SZ) effect has been publicly released by the Planck Collaboration in 2015, using a Needlet Internal Linear Combination (NILC) component separation method on Planck PR2 data. The quality of the Planck data has improved since then. The Planck PR4 data release provides full-sky maps in LFI and HFI frequency bands with improved systematics and sensitivity. I will present a new all-sky map of the thermal SZ Compton y-parameter obtained by implementing NILC on the latest Planck PR4 data and discuss improvements in terms of noise and residual foreground contamination.
Primary author
Jyothis Chandran
(IFCA, Universida de Cantabria)
Co-authors
Dr
Mathieu Remazeilles
(CSIC - Institute of Physics of Cantabria (IFCA))
Dr
Rita Belen Barreiro
(CSIC - Institute of Physics of Cantabria (IFCA))
