We have started a pilot project to study the spatially resolved Sunyaev-Zeldovich signal in a few clusters of galaxies. This work is in preparation for the CATARSIS survey that the TARSIS instrument will carry out at the CAHA 3.5m telescope after installation and commissioning. I will describe the work done so far on this pilot and the motivation to expand it though a future AtLAST-CATARSIS program. This presentacion was part of the conference IV GUAIX Scientific Meeting UCM 2025.
Francisco Miguel Montenegro Montes (Wed,) studied this question.