These results are brought to you by the fantastic team of dedicated and brilliant scientists of the eROSITA Clusters and Cosmology Working Group. I feel immensely proud to be the chair of this team! (14/14)
https://www.mpe.mpg.de/7999694/erosita-cosmology-team

I cannot close this thread without mentioning the tightest constraints on the blackhole feedback in eROSITA-discovered galaxy groups by my graduate student @yemrebahar.bsky.social, released two weeks ago. (13/14)
https://arxiv.org/abs/2401.17276

the Kilo-Degree Survey, and the Hyper Suprime Cam Survey (12/14)
https://arxiv.org/abs/2402.08456

The cluster evolution measurements rely on the mass estimates through weak gravitational lensing. This effort was a truly international effort that involved three large collaborations: the Dark Energy Survey (11/14)
https://arxiv.org/abs/2402.08455

All these groundbreaking results are thanks to the accurate modeling of eROSITA's detection efficiency and the selection function through eROSITA's digital twin. (10/14)
https://arxiv.org/abs/2402.08457

The spatial distribution of galaxy clusters provides an independent measure of cosmological parameters and a reliable tracer of the large-scale distribution of matter in the Universe. We independently confirmed the results by measuring clustering. (9/14)
https://arxiv.org/abs/2402.08460

The evolution of the clusters traces the growth of the linear density perturbations and can constrain the alternative gravity models. The current analysis has already ruled out a set of extensions of Einstein’s Theory of General Relativity. (8/14)
https://arxiv.org/abs/2402.08459

eROSITA maps the large-scale structure of the Universe! Superclusters are chains of clusters that mark the large-scale, overdense regions. In the first All-Sky Survey, we identified 1338 superclusters, the ideal sites to study structure formation. (7/14)
https://arxiv.org/abs/2402.08454

See for distance measurements and optical identification. (6/14)
https://arxiv.org/abs/2402.08453

The eROSITA clusters catalogs, which are released today, enable all these exciting results. (5/14)
https://arxiv.org/abs/2402.08452

Another ground-breaking result is the constraints on the total mass of the left-handed neutrinos. Combined with the cosmic microwave background, eROSITA constrained their mass to be <0.12eV, the tightest constraint thus far. (4/14)
https://arxiv.org/abs/2402.08458

eROSITA data-alone measured the pressure of the dark energy with the highest precision compared to other multi-wavelength probes. These measurements are also in excellent agreement with the standard model. (3/14)

eROSITA data alone measures the amount of total matter to be 29% in the Universe. The clumpiness, defined by the S_8 parameter, is in excellent agreement with the standard model of cosmology and the cosmic microwave background observations. (2/14)

Please spread the word.