The dynamical state is a fundamental characteristic of galaxy clusters, which describes if clusters are relaxed dynamically or in a merging process of subclusters. Violent merger events can destory the structure of clusters significantly and hence change their properties in many aspects.
The dynamical state of galaxy clusters can be quantitatively figured out by analysing the characteristics of their X-ray images. In the last two decades, the Chandra and XMM-Newton satellites have accumulated massive data for plenty of galaxy clusters.
We processed data for clusters of galaxies archived by the Chandra, and calculated 4 kinds of dynamical parameters for 964 clusters in uniform methods (see details in Yuan & Han 2020). See the web-page for Dynamical parameters for 964 clusters derived from Chandra images.
As a complementary to the Chandra data, we recently processed the X-ray images for 1308 clusters from XMM-Newton archival data, and calculated the 4 kinds of dynamical parameters for these clusters with similar methods (Yuan, Han & Wen 2022, MNRAS, in press. arXiv:2204.02699). See the web-page for Dynamical parameters for 1308 clusters derived from XMM-Newton images.
We obtained a set of uniformly derived parameters for a combined sample of clusters from the Chandra and XMM-Newton data, in total 1844 clusters, can be found here.
Codes for friendly usages
The code for processing the Chandra and the XMM-Newton data is smarter and easier to use now. You can get the original c-code here in tar.gz. See README for details.
See all papers on galaxy clusters from our research group, in particular, some related works you may interested:
Dynamical parameters for 2092 rich clusters from SDSS data: Wen & Han (2013)
The fundamental plane for diffuse radio sources in clusters: Yuan, Han & Wen (2015)
The radio luminosity function of brightest cluster galaxies: Yuan, Han & Wen (2016).