Hierarchical Assembly of Brightest Cluster Galaxies

Brightest Cluster Galaxies (BCGs) are shaped by complex merging processes.  The stellar population study of the intracluster light(ICL) can shed light on the hierarchical assembly of galaxy clusters. In this talk I will present the stellar population properties of ICLregions in the Coma cluster derived from modeling deep spectra obtained with SDSS/MaNGA, and discuss their implications on thebuild-up of BCGs.  I will also present analysis of VLT/MUSE data of an on-going BCG assembly in a galaxy cluster at z~0.1.  Our resultsreveal the coordinated assembly of BCGs, namely that the building blocks of BCGs are distinct from the general population of low massgalaxies by their stellar population properties.

Meng Gu (Harvard University)
KIAA 1st meeting room
Mon, 2019-01-14 12:00 to 13:00