2 papers
astro-ph.CO2025
XMM-Newton follow-up of a sample of apparent low surface brightness galaxy groups detected in the ROSAT All-Sky Survey
Claudia Spinelli, Angie Veronica, Florian Pacaud +4
Galaxy cluster cosmology relies on complete and pure samples spanning a large range of masses and redshifts. In Xu et al. (2018) and Xu et al. (2022), we discovered an apparently n…
astro-ph.CO2018
A New X-ray Selected Sample of Very Extended Galaxy Groups from the ROSAT All-Sky Survey
Weiwei Xu, Miriam E. Ramos-Ceja, Florian Pacaud +2
Some indications for tension have long been identified between cosmological constraints obtained from galaxy clusters and primary CMB measurements. Typically, assuming the matter d…